Comments Engineer has made

  • Dimmable CFL's

    A list of dimmable CFL's from the Energy Star website

    http://www.energystar.gov/index.cfm?fuseaction=cfls.advan ...

    My wife drives a Prius, recycles, yada, yada... and has also complained about every CFL I have ever installed in the house.

    I did replace the linear fluorescents in the kitchen with T8's and electronic ballasts, she likes those just fine.

    Common sense is an oxymoron...

    On Not tonight ... your CFLs give me a headache posted 2 years, 7 months ago 27 Responses
  • Utility assistance?

    http://www.cityutilities.net/conserve/overview.htm

    Not great (capped at $5,000), but will reduce out of pocket somewhat.

    I've had some success with cash short agencies (schools, in particular) by suggesting that instead of a full blown retrofit project, they replace their stock of replacement bulbs and ballasts (assuming you're talking mostly about lighting opportunities) with T8/electronic, then any time a bulb needs to be replaced, retrofitting that entire fixture.

    Their incremental cost is a lot lower this way, but it does take a long time to make much progress.

    Common sense is an oxymoron...

    On Dueling assumptions posted 2 years, 7 months ago 18 Responses
  • O&M based on????

    "And their operation and maintence costs are neglible"

    Not sure what you're basing this on. O&M on our wind projects is running ~$14/MWh. Without subsidy (these are public projects depending on annual Congressional funding for the Renewable Energy Production Incentive, which has not been and is not fully funded) the cost of output is ~$65/MWh, so O&M is a little over 21% of the cost of power.

    Coal, (new) without a carbon tax or other mechanism to address externality costs, could produce power in the $40/MWh range, substantially less than wind. Coal plants aren't built because anyone has a particular desire to destroy the environment, they're built because the power from them is CHEAP! And power companies try to keep rates low. Existing coal plants (where the capital costs have already been amortized) produce power less than $20/MWh.

    If wind (or any other renewable) produced power less expensively than coal, there wouldn't be a fight over building new coal plants!

    Common sense is an oxymoron...

    On Shenanigans everywhere posted 2 years, 7 months ago 23 Responses
  • Hmmm...

    SS Credit 3.2 Alternative Transportation: Bicycle Storage & Changing Rooms
    1 Point
    Intent
    Reduce pollution and land development impacts from automobile use.
    Requirements
    For commercial or institutional buildings, provide secure bicycle storage with convenient changing/shower facilities (within 200 yards of the building) for regular building occupants. Maintain bike storage and shower capacity that is sufficient for the greater of 1% of the building occupants or 125% of peak demand for these facilities.
    For residential buildings, provide covered storage facilities for securing bicycles for 15% or more of building occupants in lieu of changing/shower facilities.

    It's been a while since I read it...I remembered covered, but you're right, not 'required' for commercial.  Doesn't mean the public couldn't lobby for it, but depends on how close they are to reelection and how much backing they think the bicyclists have.

    Common sense is an oxymoron...

    On Bike racks in rain, smokers under cover posted 2 years, 7 months ago 14 Responses
  • LEED for existing buildings...

    Another possibility to consider is to begin lobbying for your local county to adopt LEED standards.

    There is a retrofit specification for existing buildings and one of the compliance areas is providing bicycle storage to encourage the use of bikes, rather than the multiple discouragements you received.

    Common sense is an oxymoron...

    On Bike racks in rain, smokers under cover posted 2 years, 7 months ago 14 Responses
  • Hmmmm......

    "different people have different tastes for what is considered acceptable riding (or walking)"

    "Wiki-Route" anyone???

    Common sense is an oxymoron...

    On Will Google Maps or Mapquest be the first to help folks travel green? posted 2 years, 7 months ago 16 Responses
  • Some perspective

    Ranking cities by the number of participants in green power programs is one thing, but it's helpful to put the relative starting points in perspective.

    Seattle's fuel mix is predominately hydro (86.5%), with wind (3%), nuclear (4.2%), natural gas (5.2%) and only a small amount of coal (0.89%), so was producing very few emissions to begin with.

    Portland gets electricity from two utilities, Pacificorp with (80% coal, 8% natural gas) and Portland General Electric (40+% coal, 8% natural gas), so had/has more 'need' to offset emissions with green power.

    Common sense is an oxymoron...

    On A couple posted 2 years, 7 months ago 3 Responses
  • Thou shalt not covert thy neighbor's...

    electricity?????  

    "you can actually have people buying stored electricity from their neighbor's car"

    Not sure I want to try and buy electricity from someone who's digital clock looks like this <blink>12:00</blink>.

    My point was more that many GHG reduction strategies (hydrogen production, electric cars, etc.) rely on 'low cost' off-peak energy.

    If consumption during that period increases, it will change the economics of the situation, so lower off-peak pricing shouldn't be taken as a given in any analysis.  This would also impact the savings potential of the 'smart grid' initiatives (if the lower off-peak pricing goes away).

    Also, generation is ramped down or shut down to follow load as it drops off, so increasing consumption during what is now a lighter load period will require generation to be run at a higher level, with attendant fuel use and emissions.

    As renewables are developed and displace GHG emitting resources, that impact will be lowered, but (at least IMO, for some time to come) will still exist.

    Which is a long way of getting to the need to get people to think about conservation/efficiency/reduction in use, not just a shift from one resource to another.

    Common sense is an oxymoron...

    On If you won't go after them, we will posted 2 years, 7 months ago 9 Responses
  • One small nit...

    A Labour Party spokesman said that the monitors were not the latest generation of meters, known as "smart meters".

    The device in the article would not interface with smart appliances or any other automated control systems.

    The 2005 Energy Policy Act requires U.S. utilities to go through a public hearing process to consider the use of 'real' smart meters and/or time of use metering.  

    Common sense is an oxymoron...

    On Helping homeowners monitor electricity use posted 2 years, 7 months ago 6 Responses
  • When is off-peak not off-peak?

    "electricity can cost a lot less, when it's charged at times of day when the demand is lower."

    Admittedly, it would take a long time to get there, but if electric cars in sufficient numbers started charging at night, it would no longer be off-peak (more technically Light Load Hour - LLH), but on-peak (Heavy Load Hour - HLH) and the price differential would reduce or possibly even reverse.

    Even now, there are occasionally weird market fluctuations where LLH pricing will exceed HLH prices.  It makes no sense, but happens anyway.

    "For instance, during the evening, when windpower is readily availible"

    Typically there tends to be a nocturnal pattern to wind generation, with 60% or so of the output occurring during the LLH period, but January reversed that at the project we're involved in, with 60% of the generation occurring during the HLH period.

    Common sense is an oxymoron...

    On If you won't go after them, we will posted 2 years, 7 months ago 9 Responses
  • Puts an interesting spin on this...

    Texas passes California in installed wind capacity.

    http://www.treehugger.com/files/2006/07/texas_passes_ca.p ...

    Common sense is an oxymoron...

    On Hybrid power plant posted 2 years, 7 months ago 18 Responses
  • Not quite...

    4,000W = forty 100W light bulbs (or more ecologically correct, 173 23W CFL's)

    2,000 houses could only get about 1/2 of a small night light each.

    Not that it isn't a cool device!

    Common sense is an oxymoron...

    On An interesting approach to bird safe wind power posted 2 years, 7 months ago 5 Responses
  • The Morlocks and the Eloi...

    ...lower-class, relatively unskilled workers.  Isn't a societal failing that the only high-wage jobs we can offer them are also high-risk jobs?

    If everyone wore a tie and worked in an office, who would build the office buildings or fix the plumbing in them?

    For that matter, the process of making solar PV cells involves quite a few toxic chemicals.  A few years back a silicon chip facility near Moses Lake, WA (recently sold to REC which will be expanding it to produce PV cells) had a pipe blowout which killed two workers and injured two others.  So there is a potential human 'cost' in any manufacturing or construction process, not just 'dirty' energy jobs.

    As has been pointed out, there are many high risk jobs not related to the energy field.

    Common sense is an oxymoron...

    On Roughnecks have it really rough posted 2 years, 7 months ago 23 Responses
  • Accountants and Customer Service Reps

    Do you think most utilities don't offer a fixed rate because they're not looking at businesses as a primary source of participation?

    At my utility it's because the accounting department likes fixed revenue and the customer service reps don't like having to look up or work with anything 'different' (slows down their turn around time on calls).

    Once you can get people past those concepts, it makes sense.  Ideally rates are based on the 'cost of service', so a green rate would be based on the cost of acquiring and delivering the renewable power and the 'normal' rate would be based on the costs from those resources.

    So, a fuel escalation clause linked to the cost of natural gas shouldn't be reflected in the cost of renewable power.  Of course, in the Pacific NW, most (85% for us) of our electricity comes from hydro resources (which isn't considered renewable in WA), so there isn't a lot of fluctuation in costs.

    I propose it every year during the budget process and each year the resistance is a little less, so eventually I'll win.

    BTW, my utility made the list!  I usually don't bother to look because we're so small, but we tied for 10th place for the lowest premium for our green rate.

    Common sense is an oxymoron...

    On Who are the green power leaders? NREL tells us posted 2 years, 7 months ago 3 Responses
  • What's in a name?

    'Smart Grid' might be the catch phrase, but most of what's under discussion has nothing to do with the 'grid' itself...

    You can see it in the home of Jim Chuda, a green architect whose ecologically safe Hollywood Hills home features recycled aluminum bathroom tiles, energy-efficient ceiling fans and insulation made from old blue jeans.

    That just sounds like good old-fashioned energy conservation, programs for these types of activities have been around since the 1980's.

    A battery backup that looks like a chrome refrigerator sits in Chuda's garage and automatically maximizes the use of his solar panels by ensuring the electricity generated by them is used first, before any is taken from the grid...among a slew of intelligent energy management innovations that have the power to let any home or business become a net provider of electricity back to the grid.
     

    That's covered under current net metering standards.

    the Galvin Electricity Initiative, a campaign to create a new power system, noted that today's electricity grid is antiquated.

    With strung wires, transformers hanging at meters and overbuilt infrastructure designed to accommodate peak usages, electricity is - as activists have long pointed out - the last industry to digitize.

    Except nothing that's being proposed is actually going to change any of that...

    Designing a system that allows your dishwasher or refrigerator to sense changes in the power grid and automatically reduce a home's electricity consumption, or let homeowners see how many kilowatts of electricity they are using at any given minute, is close to a reality.

    Two way communications is a change, and can help reduce the need to 'overbuild' (as is every other infrastructure system that has varying usage, highways, fire exits, interior house wiring, water systems, etc., etc.) to meet peaks by allowing the utility the ability to control those peaks.  

    However, the technology to fully deploy this is still in development, I.E. manufacturers were working on developing standards for 'smart appliances' that can respond to utility signals last summer, that hardly makes the existing system 'antiquated'.  

    We have spent the last year working on a pilot program to develop an active load control program.  Although many customers were excited to participate and like the program...or at least the intent behind the program, many others see this as a 'Big Brother' intrusion into their private lives.

    Utilities have been running load control programs for years with water heaters using pager type signals or power line carrier signals, the fact that newer technology is being developed (or that more customers are now willing to allow their devices to be controlled) overlooks the efforts that were conducted before it became 'fashionable'.

    Just an old farts rant against the 'resistance from entrenched utility interests' stereotype that is being trotted out, I guess...

    Common sense is an oxymoron...

    On Stories on smart grid starting to pop up posted 2 years, 8 months ago 6 Responses
  • Full spectrum lamps

    Most of the data about the 'benefits' of full spectrum lighting are from the folks selling it (at quite a premium).

    Scientific studies have not found those claims to be true so far...

    Recent Full-Spectrum Lighting Studies
    -In a counterbalanced, longitudinal design, no statistically significant differences in any learning or health measures for 4, 5 and 6th grade children were found between the use of cool-white, warm-white or daylight simulating lamps (Landrus and Larkin, 1990).
    -In a carefully controlled experimental study of 208 subjects, no statistically significant differences between cool-white and full-spectrum lamps (Veitch, 1997).
    -No significant differences in preferences for full-spectrum, polarized and conventional fluorescent lighting in 2 office lighting experiments (Boyce et al., 2002).

    Professor Alan Hedge, Cornell University, January 2007

    The Lighting Research Center -  http://www.lrc.rpi.edu/programs/NLPIP/publicationDetails. ...

    A Canadian Study -
    http://irc.nrc-cnrc.gc.ca/pubs/fulltext/prac/nrcc44747/nr ...

    Common sense is an oxymoron...

    On Unintended consequences? posted 2 years, 8 months ago 46 Responses
  • CRI, color temperature and recessed cans

    looking in the bathroom mirror and seeing green flesh. That was disturbing...No way to overcome the spectrum issue

    You may have to talk to a more savvy supplier than Home Depot, but ask for a bulb with a Color Rendering Index (CRI - a visual comparision to the 'equivalence' to incandescent) above 80 and/or a color temperature of 4100 Kelvin (K) or higher.

    Less expensive CFL's tend to have a CRI in the 70's and a color temperature in the 2800-3200 range.

    Those should improve the quality of the light output.

    Regarding the other problem, I think the bulbs took a long time to brighten up because the light fixtures -- which are in the ceiling -- are cold during the winter. I hope this is the case because I would like to install recessed light fixtures in the basement and it would be nice to be able to use long-lasting low-energy CFL bulbs. I can't really insulate the existing cans because -- besides being a major code violation -- someone could put a regular bulb in there someday and burn the house down.

    Electronically ballasted CFL's (most newer models) usually don't have the warm up problem you mention.  If the cans are typically that cold, you can also ask for cold start ballasts.

    If the cans are accessible, you can replace them with a Insulation Contact (IC) rated can, which will be rated to have insulation (duh...) installed over it.  Typically they allow less air loss through the can, reducing your heat loss.

    Replacing exisiting cans isn't always possible, but another option if you can (or for the new recessed fixtures in your basement), is to look for 'hardwired' CFL fixtures with the ballast built in and a replaceable tube.

    The reflector will be optimized to get the light out of the fixture and you won't have to worry about a new owner going to an incandescent.

    Common sense is an oxymoron...

    On Unintended consequences? posted 2 years, 8 months ago 46 Responses
  • Perspective

    Just to keep a little perspective on things, CFL's are not the only form of fluorescent lighting. Far more common are the commercial 4 and 8 foot linear tubes which have been in use since the 1940's.

    A four foot linear T12 40W (1" dia) tube until the mid 90's contained about 40 mg of mercury, newer ones around 20 mg. Energy efficient T8 32W (5/8" dia) replacements contain about 10-15 mg.

    A typical CFL contains 5-10 mg.

    Given the amount of commercial lighting compared to residential, the potential impact of mercury from CFL's is small.

    Recycle! As far as the cost of recycling, our local landfills take residential quantities of paint, used oil, etc. at no cost, they could add no cost drop off of burned out fluorescents as well.

    Common sense is an oxymoron...

    On Unintended consequences? posted 2 years, 8 months ago 46 Responses
  • Inconsistent numbers...

    Nucbuddy wrote (regarding tax credits):

    Now it is $19 per MW. It does not constitute a major portion of American windpower subsidies. That and the other windpower subsidies are detailed and referenced here:

    aweo.org/Schleede.html

    5. American Bar Association, in mid-2004, established a "Renewable Energy Resources Committee." During a December 15, 2004, teleconference, Ed Feo of Milbank Tweed Hadley & McCloy, LLP pointed out that 2/3 of the economic value of wind projects come from tax breaks.

    Windpower functions essentially as a money-losing tax shelter.

    Interesting that in the first report, when calculating the benefits of wind production, they use a "generous" (their term) capacity factor of 27%, yet in calculating the tax subsidies, they use a capacity factor of 40%...

    Perhaps someone is trying to skew the results???

    Common sense is an oxymoron...

    On We don't need to keep burning coal, oil , and gas for electricity posted 2 years, 8 months ago 37 Responses
  • Stealth Hummer...

    All tactical vehicles run off of JP-8 jetfuel...Tactical military vehicles certainly aren't known for their fuel efficiency.

    Done for silence, not fuel efficiency, but...how about a diesel-hybrid Humvee

    Common sense is an oxymoron...

    On Not just a green issue, but certainly it is one posted 2 years, 8 months ago 2 Responses
  • Touche!

    ...however, you DID include in the quote the weasel words I mentioned as well...

    "Apparently..."

    "Most uranium ores..."

    "can exceed"

    So, you and others have now provided additonal information that the fuel enrichment cycle only consumes 1 to 4% of the net output.

    And they're going to solve that whole disposal thing Real Soon Now, right?

    Common sense is an oxymoron...

    On Join me for some navel gazing! posted 2 years, 8 months ago 69 Responses
  • Snake river dams...

    On the other hand, the four lower Snake River dams could be removed, and...restore four species of Snake River anadromous fish

    (from a paper by Alan Berryman, Emeritus Professor of Entomology and Natural Resource Sciences at WSU)

    "A dramatic collapse of the steelhead population occurred in 1973-5 with only 12,000 fish climbing Ice Harbor dam in 1974. This collapse occurred 2-3 years after the closure of Dworshak dam on the North Fork of the Clearwater River...

    Since both A and B runs pass over all the dams on the Snake and Columbia rivers, and since there was no evidence of a collapse of the A run, we are lead to conclude that the collapse was mainly caused by the closure of Dworshak dam, an event that caused the loss of all steelhead spawned in the North Fork of the Clearwater River...

    It is surprising that none of the other dams showed any impact on returning steelhead populations. The only other large decrease in the B-run was in 1951, prior to the major dam-building period. In fact the Bonneville steelhead counts have remained remarkably steady for almost 60 years...

    Our analysis, as well as simple logic, suggests that the wild B-run is in greatest danger because the construction of Dworshak dam removed most of the spawning habitat for this strain. It is not clear if the low dams on the Columbia and Snake Rivers are a real threat to the wild populations. "

    Common sense is an oxymoron...

    On The damming question posted 2 years, 8 months ago 14 Responses
  • Please note

    that I qualified the initial post, saying it wasn't definitive, ...apparently, etc.

    So it's just under a 1% loss instead of just under 4% (for +/- 65% of the fuel...my numbers are still valid for the rest!).  That's still 18,000 MWh per year to enrich the fuel for the one Swedish nuke mentioned.  

    That's 514,285 CFL's!

    And, if the enrichment facilities are not located where they use nuclear, hydro or other non-GHG fuel resources, there is an associated 'hit' on the CO2-free claim for nuclear for those MWh consumed during the enrichment as well.

    I re-read my posts and don't see where I ever said it was a net energy sink, just that the net output was possibly less than claimed.

    And, if the loss could be offset "just by raising the temperature a hundred degrees or switching to centrifuge enrichment", I'm curious why that isn't already being done?

    Common sense is an oxymoron...

    On Join me for some navel gazing! posted 2 years, 8 months ago 69 Responses
  • Better late than never...

    maybe make a few comments here about the 51 page report...by Dutch electrical engineer J.A.Halkema-

    I had gone through the report, then looked at how long my response was and decided not to post it.

    Now that this has popped back to the top, I'll pick out a few comments.

    "Hence, it is misleading to assert that every year wind turbines in a certain region will produce about the same average number of kWh during a particular period or season... It would be irresponsible to design a system...based only upon an assertion that the wind speed on average will behave as one hopes."

    I can't speak to how they perform `due diligence' on wind projects in Europe, but in the US, typically at least two years of meteorological data (wind speed, direction, air temperature, etc.) is required to develop a design for a wind project.  

    Each WTG (Wind Turbine Generator) has a specific `power curve', which states how it will perform at various wind speeds.  By combining the met tower data average wind data with the WTG power curve, a reasonably accurate annual forecast CAN be made.

    We now have three production years worth of actual output data.  The first year, the wind was below average and the actual output was 11% less than projected.  The next two years, the output was approximately 1% greater than estimated.  I would say that actual output being within 1% of projected is fairly accurate, regardless of the generating resource.

    "This means that traditional power stations will remain essential simply because of considerable wind power. Approximately 90% of the installed wind power is needed as a reserve capacity."

    I don't disagree with him that some conventional (or at least higher capacity factor) generation will be required as reserves, but current transmission interconnects (`grids') operate with 5-7% reserves and have performed studies that show that with wind comprising up to 25% of the total generation, the reserves only need to be increased 1-3% above current levels.  

    A 3% increase above what the reserve levels would otherwise be isn't even close to 90%.  Other wind threads have discussed different proposed technologies for non-fossil fuel reserve capacity.

    Common sense is an oxymoron...

    On It's not the view: it's the vision posted 2 years, 8 months ago 132 Responses
  • Yes... and your point is?

    "Did you read Graham Cowen's link in his second post above?"

    The 'About Us' link on that site brings up:

    nuclearinfo.net
    Everything you want to know about Nuclear Power.
    This website explains all the issues surrounding Nuclear Power including...

    In another recent thread you said:

    AWEA is an advocacy organization. Advocacy organizations are in the business of making things they are advocating look good...How did you come to the conclusion that...a(n) advocacy organization, does not have an incentive to lie about the true...costs?

    Change AWEA to nuclearinfo.net and guess what?

    I'm not sure who provides oversight on the linked report...but, according to non-industry advocate sites:

    The capacity of enrichment plants is measured in terms of 'separative work units' or SWU. About 100-120,000 SWU is required to enrich the annual fuel loading for a typical 1000 MWe light water reactor. Enrichment costs are substantially related to electrical energy used. The gaseous diffusion process consumes about 2500 kWh per SWU...

    If you do the math with those numbers and factor in the plant in the report is over 3,000 MW, you come up with a figure of roughly .9 TWh, compared to the annual output they list of 23 TWh.  This is almost a 4% net loss in the output of the plant just for the enrichment process, not counting construction of the facility or any of the other life cycle costs.

    Common sense is an oxymoron...

    On Join me for some navel gazing! posted 2 years, 8 months ago 69 Responses
  • I'd rather not have that 'talk' with Homeland Sec.

    "How would you go about attacking a spent-fuel pool? Please be specific"

    Safety and Security of Commercial Spent Nuclear Fuel Storage: Public Report (2006)

    Nuclear Regulatory Commission Backgrounder (Spent fuel transportation security is most of the way down...)

    Or...GAO Hanford Spent Fuel Report no attack required!

    This fuel is currently stored in water basins a about 1,400 feet from the Columbia River, where the deterioration of some of the fuel and the water basins has raised health and safety concerns. The basins were constructed in 1951, are well beyond their useful life of 20 years and are vulnerable to leaks and earthquake damage. Any rupture of the basins, such as from an earthquake or accident, could release large quantities of contaminated water to the soil and to the Columbia River. In fact, it is likely that radioactive materials carried in water leaking from one of the basins have reached the river at least twice in the past.

    Common sense is an oxymoron...

    On Join me for some navel gazing! posted 2 years, 8 months ago 69 Responses
  • Net nuclear output

    This is by no means definitive, but I had heard this in the past and have been trying to find more documentation...

    Apparently, similar to the discusions of corn ethanol, the amount of energy required to refine most uranium ores to the point where they can be used as fuel can exceed the amount of power generated by the nuclear plant.

    In fact, the paper suggests that a nuclear power plant being fueled by uranium of an ore purity of 1% or more (which represents only 10% of the world's uranium) would require 10 full years of operation until it becomes a net energy contributor to society. Officially, nuclear power provides 7% of the world's energy. When including the energy required for the uranium fuel cycle, it contributes just 0.4-0.7%.  

    Common sense is an oxymoron...

    On Join me for some navel gazing! posted 2 years, 8 months ago 69 Responses
  • Why be skeptical?

    Well, if you take this, file off the serial numbers and substitute 'solar' for the Hummingbird Free Energy Generator, the duck is still quacking (IE, if it looks like a duck and quacks like a duck...) Draw your own conclusions.

    They are promising delivery in one year (or less) from a factory that still not only hasn't been built, it doesn't have a location or a permit for construction, using an 'innovative' new process that is not in operation anywhere else in the world.

    Etc.

    Again, draw your own conclusions.

    Common sense is an oxymoron...

    On Anybody heard about this too-good-to-be-true solar company? posted 2 years, 8 months ago 29 Responses
  • Small point in the overall scheme of things...

    "Extend production tax credit for renewables."

    The PTC is only available to private companies. If the tax credit is in effect when your project goes into commercial production, the amount is locked in for a full ten years.

    Public entities must rely on the Renewable Energy Production Incentive (REPI).  On a per kWh basis, REPI is equal to the PTC.  However, REPI must be funded annualy by Congress.  Our first wind project went on line in early 2002.  To date it has never received full funding from REPI.

    In fact, I'm heading for a meeting in a couple hours to discuss the increase in operating costs needed to sustain the project.

    As additional projects have been developed nationally, the federal budget allocation has not kept pace.  Our project was originally receiving about 75% of the anticipated amount.  With changes that were made under EPAct05 and without additional funding, guesstimates are that we will receive less than 50% of our originally projected REPI funding next year.  

    Thus the meeting to discuss project budget impacts.

    Projected budgets for the new wind project we're looking at include options anticipating no funding from REPI...almost $100/MWhr at the bus bar.  Which means we still need to purchase Integration services (roughly $40/MWhr) and transmission capacity!

    Full funding for REPI would be a nice goal as well.

    "plugin hybrid vehicles fleet cars for government, federal, state, and local"

    Hybrid's are part of the 'State Bid' list in WA (fleet deals negotiated by the State which can be used by local government agencies as well).  My company purchased one this year (at my urging), which doesn't sound like much, but we're small enough that one car is 25% of our 'pool' (vehicles not assigned to a specific person).

    Our governor recently signed an Executive Order that will require state agencies to increase their use of hybrids.

    People have caught on to hybrids, put the subsidies into the PHEV battery packs.  I checked into that when my wife bought her Prius.  $9,500, over 1/3 of the original purchase price of the car!

    Common sense is an oxymoron...

    On Decent posted 2 years, 9 months ago 6 Responses
  • Actually,..

    Enron got it's start in the natural gas industry.

    http://en.wikipedia.org/wiki/Enron#Early_history

    Ken Lay backed Pat Wood for a position on the Federal Energy Regulatory Commission (FERC) which then promulgated rules for the deregulation of the electric industry (FERC Orders 888 & 2000) which led to Enron's involvement there.

    Wading through the other report.  There is some factual information there, but with the emphasis on the 'terrible, horrible, no good, very bad' adjectives (from a book my kids loved) it takes a while to sort out the actual semantic content.

    As far as the predictability, the projects we're involved in use this company http://www.3tiergroup.com/faq.htm , which has been able to predict the wind speeds at the day and hour ahead level fairly accurately.  Hour ahead is the critical number, as the power schedulers have to provide the transmission system Control Area operator with a day ahead schedule of projected generator output, which can then be modified on an hour ahead basis.

    Deviations outside of the schedule result in $100/MWHr system imbalance charges.  At full output (or rather, if you scheduled full output, then didn't deliver), this could cost the project(s) $6,700 per hour in penalties.

    There is a temporary wavier in effect for renewable projects, but the imbalance amount has been tracked anyway.  Over the last two years, IF imbalance charges had been applied, they would have totaled around $2,000.

    Also note that loads vary continually as well as homes and businesses start up in the morning and turn on lights, computers, etc., so the power system is already ramping generation up and down on a real time basis to match generation to load (and has been since the 30's).  

    That's why at lower penetrations, wind has no discernable negative effect, and that at higher penetrations, a slight increase in spinning reserve levels can accomodate the variability.

    I disagree with some here on what the ultimate penetration number might be, but we are no where near that level yet and the problem should become noticable as wind generation increases.

    Common sense is an oxymoron...

    On It's not the view: it's the vision posted 2 years, 9 months ago 132 Responses
  • Some wind power facts

    I won't comment on the merits of the Cape Wind project specifically as I haven't had the time to study it.  However, some broadsides directed at wind power in general should be addressed.

    (BTW, since credentials were asked for previously, mine are 32+ years in the electric utility industry, split about 50/50 between engineering and management and have been on the energy supply side - including conservation and alternative energy sources since the late 80's)

    Yes, wind power is intermittant.  The 30% capacity factor figure is an annual average.  It can vary from month to month.  We have had months with a CF of 17%, others with 54%.  That being said, over the course of a year, the projects can displace a significant amount of energy otherwise generated from other resources.

    We purchase a portion of the output from three wind projects (I spent most of today in a meeting trying to get another project out of the planning stages into construction, now in my hotel on my laptop).  

    Thermal plants have CF's in the 80 to 90%, so the delta comparison on 'up-time' is not from 100%.  Reserves, including spinning reserves are a 'grid' requirement for any type of generation, not just wind.  Typically, the operating reserve (available, but needing startup time - for planned unit outages) is 5 to 7% of the total system generating capacity, with approximately 1/2 of that being spinning reserve (online, running for instantaneous outages).

    The studies I have reviewed (the most recent one from Minnesota) show that for small amounts of wind, no change in the reserve level is required.  So, while there are emissions from the spinning reserves, they are not incremental to adding the wind resource, but part and parcel of the way the system operates.

    As the wind generation reaches 15 to 20% of the system, the studies show a need to increase the reserve level (Minnesota showed an increase in reserves from 5% to 7.5%, studies by PacifiCorp and BPA in the Northwest indicated a possible doubling of the reserve levels, from 7% to 14%).  

    If these estimates hold true, at that point you would have an incremental increase in the spinning reserve requirement of 1 to 3.5% attributable to wind.  The emissions profile from that would depend on the specific resource, but due to the required 'ramp rate' would probably be a gas CT.

    There are some alternative proposals to provide reserves that have been debated here before.  One utility (the name and region escape me right now) is starting a pilot program to test the system - using the batteries from PHEV's.  I've been skeptical, but the pilot program could prove me wrong, which could allow for greater penetration of wind without requiring increased emissions from the spinning reserves.

    Common sense is an oxymoron...

    On It's not the view: it's the vision posted 2 years, 9 months ago 132 Responses
  • Train, yes - Bus, no...

    And yes, we should get our politicans out of planes and back on old-fashioned campaign buses.

    Domestic Air Travel - 3,297 BTU/Passenger mile
    Transit Bus - 3,496 BTU/Passenger mile
    Rail (Amtrak) - 2,100 BTU/Passenger mile

    And while a campaign bus is probably newer and better maintained, there are also probably far fewer people on it.

    Common sense is an oxymoron...

    On When is it necessary, and what are the alternatives? posted 2 years, 9 months ago 39 Responses
  • Dueling data...

    ...Public transportation produces 95 percent less carbon monoxide (CO), 90 percent less in volatile organic compounds (VOCs), and about half as much carbon dioxide (CO2) and nitrogen oxide (NOx), per passenger mile, as private vehicles.

    Well, according to a NASA study of NYC Transit buses...

    The study found that conventional diesel buses are comparatively fuel efficient, but produce nitrogen oxide pollutants that can contribute to photochemical smog as well as large amounts of fine soot and sulfate particles, which are suspected to contribute to heart disease and lung cancer.

    buses tested included diesel buses with pollution controls called soot particle oxidation traps and without controls, new compressed natural gas fueled buses...measurements showed that the CRT technology for diesel buses did reduce fine particle emissions as expected, but increased the fraction of nitrous oxides emitted as NO2, rather than the less toxic NO, from 5 to 40%.

    The Compressed Natural Gas (CNG) powered buses also emitted much less particulate matter than diesel buses, but emitted troubling quantities of methane and formaldehyde.

    And on the Answers.com website about the NYC subway:

    Trivia
    According to the United States Department of Energy, energy expenditure on the New York City Subway rail service was 3656 BTU/passenger mile. This compares to 3702 BTU/passenger mile for automobile travel.  

    The Bureau of Transportation shows transit bus energy expenditure between 3576 and 4415 BTU/passenger mile.

    With that slight of an overall efficiency increase between cars and transit, the reduction claims appear to be...generous...

    Common sense is an oxymoron...

    On More fun with analogies! posted 2 years, 9 months ago 32 Responses
  • Compare apples to apples

    Is the goal to 'keep up with the Jones' in perceived progress/bragging rights (my RPS is bigger than your RPS!)?  Or to actually accomplish significant reductions?

    From an electrical generation standpoint, WA & BC Canada are already a bit ahead of the game.

    BC's electrical generation fuel mix is:
    80% Hydro
    10% Natural Gas
    10% Other
    So, depending on the makeup of 'other' between 10% and 20% of their generation produces GHG emissions.  

    WA is:
    68% Hydro
    18% Coal
    7% Natural Gas
    5.5% Nuclear
    1.5% Renewables
    About 25% produces GHG's

    OR is:
    44% Hydro
    42% Coal
    7% Natural Gas
    3% Nuclear
    4% Renewables
    About 49% produces GHG's

    CA is:
    17% Hydro
    20% Coal
    38% Natural Gas
    14% Nuclear
    11% Renewables
    Even with their larger share of renewables, they still have 58% which produces GHG's.

    The big culprit in WA is transportation, which produces over 60% of the emissions in the state.  Industry (which includes electrical generation) contributes 22% and buildings 18%.

    So, if a cap and trade is predominately aimed at the utility sector, it would only affect 22% of WA emissions, but 49% of OR and 58% of CA.

    If you want big reductions, you need to address the big contributors to the problem.

    Common sense is an oxymoron...

    On Washington is still the weakest link posted 2 years, 9 months ago 1 Response
  • Rats -

    Except that humans aren't rats, and the living conditions in the rat experiments in no way resemble U.S. cities.

    So all the cancer findings and other research based on studies conducted on rats are invalid?

    Then how about a 1982 University of Toronto study that correlated increased population density with increased drug use?

    Or a 1986 study linking increased rates of child abuse and neglect to increased density?

    Or a 1990 British one...

    Well, you get the idea.

    Common sense is an oxymoron...

    On Is it greener after all? posted 2 years, 9 months ago 76 Responses
  • Some more research...

    It has always been easier to get away with criminal actions in rural districts than in cities.  "There is safety in numbers" counts for people as well as zebras.  Sure, cities are notorious for the ease of petty crime, e.g. purse-snatching.  But in true urban environments, violent crimes are an excessively virulent disease that cannot survive.  And they do not.

    Well, according to a 2006 FBI report:

    By percent change in the number of violent crime offenses in 2005 compared with totals from 2004, cities with populations from 500,000 to 999,999 inhabitants saw the greatest increase, 8.3 percent, and cities with populations of 10,000 to 24,999 saw the smallest increase, 0.5 percent.

    In the Nation's metropolitan counties, violent crime was up 2.1 percent, and in nonmetropolitan counties, it increased 1.0 percent.

    A further examination of violent crime data for the population groups showed that cities with populations from 100,000 to 249,999 had the greatest increase in the number of murders, up 12.5 percent. Cities with 500,000 to 999,999 inhabitants experienced the greatest increases in both robbery, 9.9 percent, and aggravated assault, 8.5 percent.

    Looks like violent crime is not only surviving in the urban environment, but flourishing...

    Further research on the glories of urban access to mass transit in reducing per capita energy use is also enlightening.

    From the USDOE and Bureau of Transportation statistics, the BTU/passenger mile of various forms of personal and public transit break down as follows:

    NYC Subway  - 3656
    Transit bus     - 3576 to 4415
    Personal auto - 3702

    So, an NYC resident saves 46 BTU/mile riding the subway vs. a rural resident in a car.  If they commute 6 miles to work by subway instead of my 5 miles by car, I use almost 14 million BTU's less per year.

    Common sense is an oxymoron...

    On Is it greener after all? posted 2 years, 9 months ago 76 Responses
  • Comparing two posts by the same author...

    In one post, Tom says:

    "Is there really a serious green argument against concentrating people in cities? I can't imagine what it would be."

    Then almost immediately follows up with:

    "People who hate the noise, grime, etc, should have other options

    Are you trying to say there are people who like the noise and grime?  Add crime and you've started a pretty good list of reasons to avoid 'people piles'.

    I'd have to look up the exact reference, but there have been studies with rats that show high population densities make them more agressive and likely to attack each other.

    I don't perceive that as a particularly outstanding benefit either.

    "By the evidence you bring to bear, the culprit is not density but "decorative lighting," which is no more fundamental to dense cities than McMansions are to rural living."

    Except that out here in Sprawlsville, USA (BTW, my commute is less than 5 miles, there is employment outside of the big city) there is very little decorative exterior lighting.  It may not be fundamental to large cities, but is almost exclusive to them. So without the density, there is no need for the decorative lighting.

    Common sense is an oxymoron...

    On Is it greener after all? posted 2 years, 9 months ago 76 Responses
  • I did look at those...

    but they traded off as I remember, coal being slightly down from 2000 to 2005, natural gas being slightly up, neither very far up or down from national averages... So, I left them out for the sake of brevity.

    The claim was made that 'energy use' (specifically transportion fuels) was significantly lower...I just pointed out that while on an individual transportation basis it might be lower, but on an overall fermented dinosaur basis, it wasn't.

    Common sense is an oxymoron...

    On Is it greener after all? posted 2 years, 9 months ago 76 Responses
  • All depends on how you slice it...

    The article only looks at gasoline consumption for transportation.  A bit of poking around in other areas of the EIA website shows that while NY's transportation fuel use may be better than most, the overall fuel oil use in NY isn't that exemplary.

    NY is roughly 6.5% of the USA population, but consumes 15% of the all USA fuel oil.  Fuel oil use in NY has nearly doubled between 2000 and 2005.  Electrical generation from fuel oil in NY has nearly tripled in the same time.

    NY is one of the few states where the commercial use of electricity is significantly larger than residential use (residential consumption is only 65.8% of commercial consumption).  Given the thousands of megawatt hours consumed merely to provide decorative lighting on the exteriors of the 'up not out' buildings they brag about, I think an accurate overall energy accounting of all energy resources required to maintain that level of population density would look less environmentally beneficial.

    Common sense is an oxymoron...

    On Is it greener after all? posted 2 years, 9 months ago 76 Responses
  • Except that...

    Giving the money back to consumers with tax relief in other places would fix his concerns.

    The usual basis for tax relief is specific credits/deductions for specific items or technologies.

    So, instead of a direct subsidy paid to ethanol producers, you would wind up with a tax credit for consumers to purchase E85 vehicles.  The end result is pretty much the same.

    The other problem with federal tax relief is it's one size fits all.  So, while a tax break for solar PV cells might make a lot of sense in CA, AZ, NV and other locals, as sunflower has pointed out ad nauseum, it isn't particularly effective in the Pacific Northwest.

    Even if the money doesn't go directly to the government, they still write the rules.

    Common sense is an oxymoron...

    On A guest essay from Environmental Defense posted 2 years, 9 months ago 41 Responses
  • Not quite useless

    windmills don't just blight the area they occupy, they render all the surrounding land useless for any other purpose.

    My utility purchases a portion of the output of a wind facility constructed on leased agricultural land.

    The fields are still cultivated and grow crops to within a few feet of the access roads and tower foundations.  I think less than 1% of the actual leased area was taken out of production for the access roads, tower foundations and O&M building for the facility.

    Unless you consider farming useless?

    Being on a ridge top, they also share space with microwave communication and cell phone towers.  The microwave towers predated the wind turbines and are also required to have aircraft navigation lights.

    Which qualify as 'other uses'.

    Aesthetics are in the eye of the beholder, as a geeky, techie type, I like the looks of wind turbines.  

    Common sense is an oxymoron...

    On Over 150 activists send letter asking Kennedy to reconsider position posted 2 years, 9 months ago 21 Responses
  • Comparative efficiencies

    "The only electric car worth having will run on hydrogen fuel cells"

    The 'Full Monty' report is here, but, excerpting the summaries:

    "The power-plant-to-wheel efficiency of a fuel cell vehicle operated on compressed
    gaseous hydrogen will be in the vicinity of 22%."

    "The power plant-to-wheel efficiency of a fuel cell vehicle operated on liquid hydrogen will be in the vicinity of 17%."

    "the well-to-wheel efficiency of a hybrid electric car with SOFC range extender operated on Diesel fuel becomes 33%."

    "the power-plant-to-wheel or wind-farm-to-wheel efficiency of an electric car with regenerative braking becomes 66%."

    Common sense is an oxymoron...

    On Lots of stuff happening posted 2 years, 9 months ago 25 Responses
  • A few examples of PV parking lot installations

    US Navy    Kyocera    Google    CSU Fresno

    SRP/City of Phoenix Transit Which is also notable as being a Park and Ride lot for the transit system

    Common sense is an oxymoron...

    On Lots of stuff happening posted 2 years, 9 months ago 25 Responses
  • REC's and a Good Faith effort...

    we have substantial subsidies available for renewables in the U.S. Wind producers get at least 1.5 cents for each kWh they produce in subsidies...

    I touched on this in another thread, private utilities get these credits through the Production Tax Credit (PTC) locked in for 20 years if the PTC is currently in effect when the project begins commercial operation.

    Public utilties receive credits through the Renewable Energy Production Incentive (REPI), supposedly equivalent to the PTC, however, it is reliant on annual funding from Congress and as such to date has provided only about 60% of the eligible amount to operating projects.  Changes made under the 2005 Energy Policy Act (EPACT) will wind up reducing this to about 50%.

    So, all subsidies are not created (or at least implemented) equal.  The REC income helps offset the fact that REPI is not fully funded.

    It is a question of how much additional renewables the subsidy buys...

    many states have standards that require a percentage of their power to come from renewables.

    To claim that there is not overlap, that every dollar of green certificates buys an additional dollars worth of green power...

    It is the claim that we know with a fair degree of accuracy how many emissions they save...

    If you check out the Green-E certification process (no affiliation, I've just read through their information previously when researching REC's), their intent is to not issue REC's to projects constructed in response to a mandate.

    Our utility has partcipated in REC sales (not through Green-E) for energy purchased from a wind project not sold through our voluntary green power program.  There is a substantial amount of paperwork involved, including a 'Generator Attestation' form filled with statements such as "to the best of my knowledge, the renewable attributes were not sold, marketed or otherwise claimed by a third party", "the renewable attributes were not used to meet any federal, state or local renewable energy requirement, portfolio standard or other mandate".

    At the very least, there is a good faith effort being made to make sure REC's are incremental to RPS mandates and only counted once.

    We are also required to submit annual fuel disclosure information to the state for all energy purchased/sold by our utility.  So, at a minimum, the emissions reductions can be calculated from the overall average mix, if they cannot be specifically linked to a reduced purchase or reduced run time from a specific generating unit.

    Common sense is an oxymoron...

    On At present, offsets are impossible to verify posted 2 years, 9 months ago 11 Responses
  • Can't...stay...away...from...calculator...

    First and foremost, I am most assuredly NOT against CFL's!

    But the mercury numbers assumed the bulb was powered by 100% coal.  The national electrical generation fuel mix is (rounded) 50% coal, 3% oil, 19% natural gas, 6% hydro, 19% nuclear and 3% renewables.  Coal is the only significant mercury emmitter, so cutting the provided numbers proportionately gives 5 mg from the generation to power an incandescent and 6.25 (5 + 1.25) for the CFL.

    That being said though, the CFL mercury is only released into the waste stream if not recycled when burned out, not as a matter of course through generation.  So, along with increased use of CFL's, we need to educate people not to throw them in the trash and provide an easily accessible means to recycle them.

    My big quibble with CFL's is that there are very few models that allow you to replace the bulb.  When the bulb is burned out, you are also tossing a perfectly functional ballast that could power several more bulbs before failing itself.

    Another point in favor of proper recycling...

    Common sense is an oxymoron...

    On Introducing the 'How Many Legislators Does it Take to Change a Lightbulb Act' posted 2 years, 10 months ago 11 Responses
  • Light, yes... Insulative, well...

    what about lighting tubes. The manufactures claim they are insulative and don't leak.

    The specific Solatube reference is a U value of .42 to .48 (R 2.38 to R 2.08) through an nominal R-38 (code around here) to R-49 (our EE program recommendation) ceiling.

    But, they are relatively small compared to typical skylights and seem to provide better (and more controllable) lighting, so the trade-off of increased heat loss vs. decreased lighting energy probably looks better than it normally does with a skylight.

    Leaks? Like sunflower, I'm located in the rain capital of the lower 48 , which does make you think more about holes in the roof...the mfg information shows lots of flashing options to prevent leaks.

    Common sense is an oxymoron...

    On It's time for enviros to adjust to winning posted 2 years, 10 months ago 59 Responses
  • Already in place...

    If we really want to seriously reduce human impact on the world, then maybe...we should start a suicidal cult to achieve the Grandfather Clause.

    Try here:

    Common sense is an oxymoron...

    On Everything is lame posted 2 years, 10 months ago 68 Responses
  • Well...

    3 sockeye salmon returned to Idaho in 2007. 3 individual fish!...It used to be more than a million each and every year.

    I hate for a mere engineer to disagree with a scientist, but where did you get the information for this figure?  Data back to 1938 at Bonneville dam (the last dam on the Columbia before the ocean) show total returns of all salmonoids at approximatly 600,000 per year, with cyclical variations through 1998.

    If the total returns for the entire Columbia and Snake river drainages combined have not exceeded 1 million fish over the last 68 years, a claim that wild fish returns to Idaho alone consistantly exceeded 1,000,000 seems somewhat counterintuitive.

    An 1894 U.S. Fish Commission report counted 14 adult salmon in the Redfish Lake area.  The Sunbeam dam (1913) was built to support mining operations in that area.  According to a Corps of Engineers report, "Biologists believe that Sunbeam Dam was responsible for the complete loss of the early running stock of sockeye in Redfish Lake and no doubt was very detrimental to the late running stock that still exists".  This dam was removed in 1934.  

    While this obviously had an impact on the sockeye, it had nothing whatsover to do with the Lower Snake River dams under discussion.

    During the 1950's the Idaho Department of Fish and Game planted rainbow trout (to bring in tourism dollars from sport fishing, the same claim being made now for removal of the dams to restore salmon runs), which compete with the salmon, constructed migration barriers to block the salmon from upstream areas and introduced opossum shrimp as a food source for the trout, which compete with kokanee and sockeye fry for zooplankton.  The IDFG also poisoned lakes to kill off all species besides trout, arguing at that time that the sockeye "had virtually disappeared" anyway.  

    Impact, yes...Lower Snake dams, no...

    Removing the 4 lower Snake River (4LSR) dams will provide the greatest benefits for all these endangered Snake River stocks than any other single action

    How about an opinion from another scientist...(from a paper by Alan Berryman, Emeritus Professor of Entomology and Natural Resource Sciences at WSU)

    "A dramatic collapse of the steelhead population occurred in 1973-5 with only 12,000 fish climbing Ice Harbor dam in 1974. This collapse occurred 2-3 years after the closure of Dworshak dam on the North Fork of the Clearwater River...

    Since both A and B runs pass over all the dams on the Snake and Columbia rivers, and since there was no evidence of a collapse of the A run, we are lead to conclude that the collapse was mainly caused by the closure of Dworshak dam, an event that caused the loss of all steelhead spawned in the North Fork of the Clearwater River...

    It is surprising that none of the other dams showed any impact on returning steelhead populations. The only other large decrease in the B-run was in 1951, prior to the major dam-building period. In fact the Bonneville steelhead counts have remained remarkably steady for almost 60 years...

    Our analysis, as well as simple logic, suggests that the wild B-run is in greatest danger because the construction of Dworshak dam removed most of the spawning habitat for this strain. It is not clear if the low dams on the Columbia and Snake Rivers are a real threat to the wild populations. "On David James Duncan rows through a wheat field to save salmon -- and we've got pictures posted 2 years, 10 months ago 16 Responses

  • Assistant moderators?

    I'm relatively new here, so not sure of the hierarchy among the contributors who make post under their own byline.

    I belong to other discussion groups where the overall owner/administrator of the site has appointed moderators who assist by occasionally chiming in to bring a thread back on topic, warning those who are getting out of line and even sometimes locking threads to prevent further posts on an overheated topic.

    Dave could delegate some of the duties in line with whatever might be adopted from the list of suggestions here, or any other mechanism used to try and get back to merely whelmed, instead of overwhelmed.

    Common sense is an oxymoron...

    On Too much blog to handle? posted 2 years, 10 months ago 39 Responses
  • Ummm...did you even read the whole post?

    who says the four dams' generating capacity can't be made up by conservation and renewables?  It certainly can.

    Certainly it is possible...I didn't say it couldn't be done, what I did was provide actual data on the magnitude of the issue.

    As I said, at the cost of wiping out the past 25 years worth of existing accomplishments.  Even assuming we can quadruple the rate at which we acquire new conservation (which is problematic as the region has been working on it for a long time) it would still take over 6 years just to get back to where we are now!

    While some power is sold out of the state during the spring runoff months, the amount of power during those times also allows regional coal plants to be shut down several months out of the year.

    Take out the dams and guess what?  Now those coal plants run year round.  This is preferable to hydropower?

    I also covered the renewable side of the equation, noting that 3/4 of the identified potential for wind would be required to offset the power produced by these four dams.  The other 1/4 is already on line, under construction or in the permitting process.  If most of the renewable potential in the region is constructed just to make up for the power lost by removing these dams, what happens when the load grows?  We are seeing 2 percent annual load growth across the region WITH conservation programs in place that have cut demand by 1,500 aMW.

    All in the name of 'restoring' a fish population that has actually INCREASED since the dams have been in place!

    I mean, if the fish populations had gone from 200,000+ to 27,000 after the installation of the dams, fine, take them out.  But the numbers go in the other direction.

    So, one more time (and I'll type R-E-A-L  S-L-O-W) what is the problem that will be corrected by removing the dams?  I've had people claim I'm using biased data provided by 'pro-utility' agencies, so, go to the Fish Passage Center website (famous for Sen. Larry Craig attempting to zero out their budget for advocating a position, rather than just reporting data) and see if their numbers agree (hint, they do!)
    On David James Duncan rows through a wheat field to save salmon -- and we've got pictures posted 2 years, 10 months ago 16 Responses

  • Revenue Stream

    The energy issue has been quite well considered by the likes of the RAND Corporation...For details on the economic and taxpayer benefits associated with restoring the lower Snake River, see...

    Regarding the Revenue Stream report:

    {Source - NW Fishletter #223, November 20, 2006}

    "Regional NOAA Fisheries head Bob Lohn, speaking at a NW Power and Conservation Council meeting in Coeur d'Alene, Idaho, said the report was misleading, because removing the dams would only help a few of the 13 salmon and steelhead stocks listed for protection in the Columbia Basin, and would not open most of the Snake fall chinook's original habitat, now blocked by Idaho Power dams.

    It also added information from a discredited 2002 Rand report, that said power from the dams could be made up by conservation and renewables, and added $3 billion in potential fish costs...

    The report included conclusions from an economic report on the potential value of Idaho's recreational fishing industry (over $500 million a year) that was thoroughly panned by the Northwest Power and Conservation Council's independent economic review panel"
    On David James Duncan rows through a wheat field to save salmon -- and we've got pictures posted 2 years, 10 months ago 16 Responses

  • Define 'trivial'... and 'decline'...

    But perhaps more importantly, the groups and individuals who support lower Snake dam removal also support ensuring that any resulting loss of power is fully mitigated for -- through conservation and renewable energy sources.

    Per the Corps of Engineers (which operates the dams), the annual energy output from the four Lower Snake River dams is 1,231 aMW.  Per the Northwest Power and Conservation Council (which, among other duties, tracks the conservation programs in the NW), the cumulative annual energy savings from electric utility conservation programs between 1978 and 2004 is 1,500 aMW.

    So, the 'trivial' amount of hydropower lost (as it is usually referred to) will offset pretty much every kilowatt-hour of the combined energy savings acheived by all of the electric utility conservation programs in the Pacific Northwest region since 1978...

    We are at the 'load-resource' balance point in the region right now.  Going back to square one and negating 25 years of conservation efforts is not something that can be replaced quickly.

    One MW of installed wind capacity will provide approximately .33 aMW of delivered energy, so would require approximately 3,730 MW of installed capacity to replace the four dams.  To put that in perspective, the recently completed Fifth Power Plan for the NW region, identifies roughly 6,500 MW of potential wind capacity in WA, OR, ID and MT west of the Rockies.  Over 1,500 MW of which is already built or currently under construction and an additional 2,500 MW already in the planning stages.  To meet current load and load growth, NOT to replace these dams.

    And, remember, the nominal point of removing the dams is to 'restore the declining salmon runs', not (hopefully) a Luddite anti-technology bias.

    From the link I posted, listing the actual fish numbers in the Lower Snake river, in 1963, shortly after the first Snake River dam (Ice Harbor) was completed, there were no Chinook salmon, no Coho and 74,539 steelhead.

    In 2002, more than 25 years after all four of these 'fish-killing' dams were in place, how much had the salmon populations declined?

    They had 'declined' to 127,062 Chinook, 191 Coho and 202,173 Steelhead.

    What was the reason for taking out the dams again?On David James Duncan rows through a wheat field to save salmon -- and we've got pictures posted 2 years, 10 months ago 16 Responses

  • Not to mention...

    that the capability of the hydro system to shape and firm the output of the renewables planned and currently under construction in the PNW is highly desirable.

    I have information and actual fish counts for the Columbia River system that contradict some of their statements, but I'm in the middle of another project for a day or so...

    Just for starters, go to the Columbia River DART website and look at the returns at Ice Harbor dam (the lowest and first constructed) for 1963, then 2006 compared to the statement of 'dwindling populations'.

    Bear in mind that three other dams were constructed (Lower Monumental, Little Goose and Lower Granite) on the lower Snake River between 1962 and 1971.On David James Duncan rows through a wheat field to save salmon -- and we've got pictures posted 2 years, 10 months ago 16 Responses

  • In defense of the techies...

    I have also noticed lots of techno-gadgetry on the Mill of late... liberally interspersed amongst the political wonkery (interesting wonkery that it is)...Maybe this is the time of year the boys fantasize about a new car, and being able to ride said new, spanky car around in Spring's fertile sunshine.

    I mean, by all means, the engineers and the economists should be allowed their fun.  So if they want to shoot the breeze regarding biofuels and biodiesels and electro-mobiles and super-hybrids...I mean, you know, guys like to push around their toys.

    I agree with you about the discussion.  It has gone all technical and very much sounds like a bunch of guys poking under the hood and arguing about minor statistics and the like...There seems to be less politics and more cars.  I was thinking that I seemed to have stumbled on to the auto pages.

    Mea Culpa... except that considering the primary focus here is global warming and the transportation and power generation sectors contribute most of the human generated CO2, I find it slightly difficult to envision how the discussion of the reduction of those emissions could take place without delving into the technical aspects of the various and sundry devices in those sectors.

    Of course, I am burdened by mis-matched chromosomes and an engineering background, so my perspective is undoubtedly skewed.

    In theory there is no difference between theory and practice, but in practice there is!

    On It will have lasers posted 2 years, 10 months ago 13 Responses
  • More thoughts

    "The generators would need to be on the ground in the larger scale machines."

    Hmmm...

    Possible with the vertical (I think you were dyslexic on the orientations...) axis machine you are proposing.  The swept area would be smaller as well which could up your turbine count.

    I know early on both types of turbines were being installed, but every installation I've heard on in the last few years have been horizontal axis.

    "I have been searching for a resource that gives wind speed and variability at higher levels, but so far no luck.  I guess it's hard to monitor?"

    It's pretty site specific.  Typically they install a meteorological tower with monitoring equipment at the level they want data for.  That would be difficult to do at 1000'.  More recently I've heard of using SODAR to monitor wind data, but this still involves installing equipment at the specific monitoring site.

    If there is an airport near your location, they may have wind data available at various heights from wind shear monitoring.  That may at least give you an approximation.

    Your concept could also touch on the 'monocrop' issue brought up in the ethanol threads, if at least a portion of the areas leased for wind turbines were required to use sequestration crops.
     

    In theory there is no difference between theory and practice, but in practice there is!

    On The meme all the kids are talking about! posted 2 years, 10 months ago 22 Responses
  • Advances in materials will be needed!

    It will be interesting to see if they can actually build one that large...and the pieces will probably need to be lifted inside the tower and assembled in place.

    The 1.3 MW units used for the wind project we're involved in (the third phase just completed its bond sale and will use 2.3 MW Siemens turbines) had a generator unit that weighed 53 tons and were lifted onto the 200' towers by a large crane.  With 100' blades, the blade/hub assembly weighed 12 tons.  Trying to lift even 4 times as much weight to a height of 1,000 feet could be a challenge!

    The rotating mass (without significantly lighter/stronger materials) might affect the low end of the power curve (IE, how much wind is required before the blades will begin to turn).  And, the generator would need to operate at a much lower RPM or the blade tip speed would become extremely high.

    We have experienced a large number of main gear and bearing failures with the 1.3 MW units, longer blades will provide a larger moment arm which will cause even greater stress.

    It could be interesting to install one taller tower in a project and see how much the capacity factor improved just by raising an existing technology turbine into a better wind regime.

    The separation figures I used came from the inital assessment study for the most recent wind project we're involved in.  Given the visual appearance of most wind projects I've seen, it must be fairly applicable to any site.

    In theory there is no difference between theory and practice, but in practice there is!

    On The meme all the kids are talking about! posted 2 years, 10 months ago 22 Responses
  • Good idea, just nit picking on the numbers...

    4000 50mw wind machines (one per square mile) would produce 1/3 of US electric power needs.

    The largest currently available wind turbine is 3.6 MW (Siemens & GE) with a swept area diameter of approximately 320' (I'm assuming that even if larger units become available, they will scale proportionately).  Wake turbulance effects require a lateral separation of roughly 4 blade diameters and an inline separation of 14 diameters.

    Assuming 1/2 of those separation distances from the edges of your 70 mile square, I come up with 231 turbines across the width of the site and 82 for the depth, for approximately 18,942 turbines for roughly 68,190 MW of capacity (instead of 200,000 for the 4,000 50 MW units).  Based on current construction costs, ballpark would be $170 billion.

    The Energy Information Administration lists 978,020 MW as the 2005 U.S. generating capacity, so it would be just under 7%.

    That being said, from what I've read, the midwest usually sees around a 40% capacity factor for wind projects, about 10% higher than what is considered the minimum for a commercial project and combining it with a sequestration project is a good concept.

    In theory there is no difference between theory and practice, but in practice there is!

    On The meme all the kids are talking about! posted 2 years, 10 months ago 22 Responses
  • Think of it like the MasterCard commercial

    You know, solar panels $160K, Prius $27K...

    Are solar panels cost effective in the Pacific Northwest?  Nope.  Does buying a Prius count as an 'indulgence' to offset a wasteful home? Nope.

    But, cost effective or not, people who would not normally consider energy OR cost effectiveness are now doing so.  What I like about any type of net metering installation is the fact that when people reach the point of looking into generating their own power, most of the time they actually start looking into how much electricity their equipment consumes and begin taking steps towards trying to reduce their consumption.

    Depending on the electric load of the home in the photo, I doubt the solar panels will generate enough output to actually run the meter backwards.  Yet, how recently would someone trying to put PV's on their roof have meant a complaint to the zoning folks?  Now, the comment from most neighbors is probably 'cool!'

    I see these things as a positive sign that, at least as far as appearances go, the underlying mindset is changing.  Things that used to be considered the province of the 'dirty hippie' are going mainstream.  So, these panels in and of themselves may not change much.  But it does signal that they care enough to try and do something.

    People actively taking positive steps to reduce energy use?

    Priceless!

    In theory there is no difference between theory and practice, but in practice there is!

    On Not every 'environmental' action makes sense posted 2 years, 10 months ago 26 Responses
  • Last I heard...

    the group will release a joint statement highlighting their shared concerns about human-caused threats to the Creation

    ...the scientists weren't so hot on the whole 'Creation' thing...

    In theory there is no difference between theory and practice, but in practice there is!

    On Wonder Twin powers, activate! posted 2 years, 10 months ago 9 Responses
  • The 'net' in net metering...

    change the rate structure so those who generate renewable energy are payed the same rate for excess power that they are charged, even if it results in a profit for the homeowner.

    Most states have net metering laws, requiring the utilities to connect customers with their own generation (usually limited to renewables under a certain capacity limit).

    By allowing (requiring) the customer generation to slow the meter down, or even run it backwards, the customer automatically gets the same rate (IE, the utility can't distinguish the kWh's to bill them at different rates) for generation as consumption.

    Washington recently enacted a law (it was Senate Bill 5101, not sure what the actual RCW number is) allowing customers to apply to the State Department of Revenue for a credit of $0.15/kWh for renewable energy generated, paid through the utility, which gets the tax credit.  It also contains provisions for increasing the payment up to $0.54/kWh for using equipment manufactured in WA.

    This requires installing metering to measure generation as well as consumption, but given that most retail rates are well below $0.15, it works in the customers benefit.

    Under this law, the green tags/REC's/TRC's remain with the customer.  In most markets though, they must be sold in full MWh increments.  Given that the market for tags now is in the $3-$4 range, the per kWh payment is mouch more lucrative.

    In theory there is no difference between theory and practice, but in practice there is!

    On Great article in the NYT posted 2 years, 10 months ago 39 Responses
  • More LED links...

    Dept of Energy FAQ:
    http://www.netl.doe.gov/SSL/faqs.htm

    Seattle's Lig...

    LEDs Magazine:
    http://www.icfi.com/Markets/Energy/doc_files/led-lighting...

    And a laboratory demonstration test at 131 lumens/watt:
    http://www.cree.com/press/press_detail.asp?i=115083495371...

    In theory there is no difference between theory and practice, but in practice there is!

    On Wal-Mart pushes CFLs posted 2 years, 10 months ago 17 Responses
  • Not mutually exclusive

    if the grid goes down, the solar system goes down too--don't want to backfeed for safety reasons.

    Agreed, you don't want a backfeed.  

    But, it is fairly easy and not terribly expensive to add a disconnect or transfer switch to isolate a backup generation system, be it renewable or fossil fueled, from a backfeed situation.  

    In theory there is no difference between theory and practice, but in practice there is!

    On Great article in the NYT posted 2 years, 10 months ago 39 Responses
  • Plus, the evaluation criteria for a policy...

    ...is how well it achieves the intended goal.

    The goal of tiered rates is to encourage a reduction of energy use.

    We saw little increase in participation in the conservation programs and no reduction in energy usage during the two years that rate was in effect.

    An overall increase in the flat rate accomplished both of those goals much more effectively, in a more equitable manner.

    In theory there is no difference between theory and practice, but in practice there is!

    On Great article in the NYT posted 2 years, 10 months ago 39 Responses
  • Not exactly...

    The solution...(is)...to get the utility to ramp up an aggressive low-income weatherization and conservation improvements program.

    We've had a low income weatherization program since 1983.  The target has been to spend at least 14% of our overall weatherization budget on low income projects each year.  We fund it at 100% of cost (IE no out of pocket for them) and some people still choose not to do it.  We don't have the authority to weatherize someone's house without a request and permission from them.  

    So, we can implement a tiered rate and increase their costs.  Which then get paid by the local Community Action funds or some other social service organization.  Or, they wait until they get a shut off notice, then put the bill in someone elses name (usually that was already living there...).

    None of which saves any energy or emissions.

    All you do by reverting to flat rates is reward energy pigs of whatever income level.

    Most utilties perform a Cost Of Service Analysis (COSA), which is a complicated process, but the basic concept is to break down the costs of serving a particular class of customers (purchasing the power, delivering it, reading the meter, etc.) and collect revenue to cover those costs through the rate.

    Since our wholesale costs are flat, a tiered retail rate is social engineering, not cost of service.

    And, if we need to build/buy new resources at a higher cost, doesn't it make more sense to charge a higher flat rate for new construction, since without the growth, we wouldn't need those resources?

    And, again...define energy pig!

    Say you set a tier at 1,000 kWH.  A single person in a 500 sq. ft. apt with gas heat and no laundry facilities on their meter uses 900 kWH and doesn't hit the higher tier.  A family of 4 in a 1,500 sq. ft. all electric house uses 2,000 and gets the higher rate for the extra 1,000.

    Yet, based per capita consumption, the single person is a much bigger 'pig' as far as electrical usage goes!

    Penalties can be useful, but the rules need to be the same for both sides!

    In theory there is no difference between theory and practice, but in practice there is!

    On Great article in the NYT posted 2 years, 11 months ago 39 Responses
  • Beware of the Law of Unitended Consequences!

    Also note mention of the role of utility rate design:

    In California residential electricity rates are tiered, and large users like Mr. Felton pay rates about three times higher than more modest consumers, making solar power even more attractive.

    While California structures its rates to incentivize lower consumption by charging profligate consumers more, many other states have inverted tier pricing, where customers pay less the more they consume.

    Having BTDT on tiered rates, I can offer a bit of advice on the real world impact.  

    The underlying assumption is that economically well off people with their large houses are the 'prolifigate' users.  Bear in mind that these tend to also be the folks with newer homes built to more efficient codes, newer appliances, etc.

    Unless everyone is living in the same size house, with the same size family, the same heat source, etc., any decision (short of a BTU equivalent of all energy resources consumed) about what constitutes 'excessive' consumption is completely arbitrary.

    Close to 60% of the folks billed for the upper tier of consumption at our utility were lower income folks living in older homes, usually rented.

    Seattle tried the same type of approach trying to impact the 'McMansion' crowd and found about the same result we did, that over half of the folks affected were not the intended target class of customers.

    We went back to a flat rate after two years of the tiered rate.  

    In theory there is no difference between theory and practice, but in practice there is!

    On Great article in the NYT posted 2 years, 11 months ago 39 Responses
  • Too late...

    "Who's in it for a start-up???

    http://www.bigskyco2.org/

    In theory there is no difference between theory and practice, but in practice there is!

    On It muddles the science and policy debates together posted 2 years, 11 months ago 47 Responses
  • Thanks...

    Thanks for the info.  I will do some research on the efficiency of non-contact coupling.  My first thought is the losses will be fairly high there as well...but... <segue to semi-apology>

    Thinking of the recent post regarding 'trolls' (which, as well as it apparently did several others, made me wonder if it was aimed at me), I probably need to offer up an apology to anyone I may have been overly abrasive to in any of my posts.

    And while not exactly an apology...I appreciate information such as this that offer me opportunities to check things out.  I offer up my opinion where I feel I have expertise and experience, but I admit I am not up to date on the latest ideas and concepts for alternative processes and proposals.  So, as long as folks are willing to put up with my sometimes acerbic (hopefully not trollish...) comments, hopefully we will all benefit.

    In theory there is no difference between theory and practice, but in practice there is!

    On Warning: techno-engineering speak ahead posted 2 years, 11 months ago 43 Responses
  • Oops...typing faster than thinking...

    "stalling traffic until that section could have the fault cleared and be re-energized."

    Nope...battery operated cars, not full electric, dependant on the delivery system!

    My bad.

    In theory there is no difference between theory and practice, but in practice there is!

    On Warning: techno-engineering speak ahead posted 2 years, 11 months ago 43 Responses
  • A few issues...

    it is likely that we will install electric cables in the major highways such that when the electric vehicles run on such highways, the vehicles will be able to get the juice for running the vehicle and at the same time charge the battery...The cost of obtaining this large savings is electrification of the major highways, which is relatively simple and inexpensive

    My emphasis...I don't think installing a set of dual conductors on each lane of every major freeway in the country (even if only in major urban areas) could be considered inexpensive.  Putting aside the cost of doing this, a few practical issues come to mind.

    At what voltage do you envision this system operating?  AC or DC?  DC was determined impractical for distribution systems in the 1800's due to significant voltage drop after mere city blocks.  Using AC will introduce losses in the conversion to the DC battery  system.

    To reduce losses, long distance transmission lines operate at 230 or 345 kV.  More local lines are 115 or 69 kV.  With the spacing required to fit inside the track width of the smallest potential car to utilize the system will probably limit the system to a system voltage of 4800 to 7200 volts (to prevent flashover during high humidity conditions).  This 'low' of a voltage for this type of distance would incur very high losses.

    This also raises safety concerns as it would be very easy for a person to contact both conductors at the same time.  Not recommended.  Metallic objects could fall (or be intentionally thrown) across the conductors, stalling traffic until that section could have the fault cleared and be re-energized.

    Losses will also occur from poor contact between the conductors and whatever device is used to make the contact.  In non-southern climates, snow and ice will affect the ability of the system to operate.

    There is also the matter of who pays for the power and how.  A smart metering chip could be imbedded in each car, but if a billing dispute arises, how does the utility defend itself if the  metering equipment belongs to the car owner and the utility has no control over it?

    I think the overall losses from this system would be significant, probably high enough to render it uneconomical.  Not to mention the safety concerns.

    In theory there is no difference between theory and practice, but in practice there is!

    On Warning: techno-engineering speak ahead posted 2 years, 11 months ago 43 Responses
  • Urban myth?

    http://nobelprize.org/nomination/peace/nomination.php?str...

    I could find nothing in the Nobel database for 1939 about this (or any) cartoon being nominated.  However, it was interesting to find that Adolph Hitler WAS nominated for the Nobel Peace prize in 1939!

    The "Vegetarian/Meat Eater" part struck me as odd for 1939.  I couldn't find exact statistics, but one vegetarian site said vegetarianism was not common in the US until 1971 (the publication of "Diet for a Small Planet"), so being considered mainstream enough for inclusion in a cartoon is questionable.

    The owl reading "Thou Shalt Not Kill" to the squirrel is way too disneyfied, considering the usual diet of owls...

    In theory there is no difference between theory and practice, but in practice there is!

    On A cartoon for our times ... from 1939 posted 2 years, 11 months ago 4 Responses
  • Quality of inspections...

    This will not come as a shock, but I'm a tad more pessimistic.  Maybe it comes from doing follow up home inspections myself, or hearing reports from my staff inspectors.

    Not 15 minutes ago, one of my inspectors brought me pictures of the attic in a new home he did an audit on as a result of a high bill complaint.  The home was approved by the local jurisdiction as complying with the WSEC, yet there is not one bit of insulation in the attic.  The plans call for it, but it wasn't installed.

    I've heard the same thing from several other utility conservation program managers as well.

    This is the third instance we've found in the last several months as a result of complaints.  I hate to think how many are out there where we haven't received complaints.  This code has been in effect since 1991, the inspectors ought to get it by now.

    A few years back (when utilities were required to make a payment to the home builders based on local jurisdiction inspections), I pulled a random sample of payment requests and had my staff re-inspect them.  Of the 10 building records I pulled, 8 of them did not comply with the energy code.

    In theory there is no difference between theory and practice, but in practice there is!

    On Codes are springing up in cities big and small posted 2 years, 11 months ago 4 Responses
  • A tax credit is least likely to be gamed.

    I like the concept of a tax credit.  I suppose at some point it could be expanded to require documentation of the registered vehicles and not be able to be claimed if the mileage didn't reach a certain threshold.  Kind of an end-use CAFE.

    Of course, that would require people to accept some personal responsibility for their choices...what am I thinking...

    Oh, and on the Insure/Ensure usage, one of my girls was an English major.  "ENSURE and INSURE are interchangeable in many contexts where they indicate the making certain or inevitable of an outcome, but ENSURE may imply a virtual guarantee <the government has ensured the safety of the refugees>, while INSURE sometimes stresses the taking of necessary measures beforehand <careful planning should insure the success of the party>.

    In theory there is no difference between theory and practice, but in practice there is!

    On A blogger suggests a $1.00/gallon fuel tax -- after the first 30 gallons posted 2 years, 11 months ago 19 Responses
  • Not excusing it!

    Don't get me wrong, I'm not trying to justify or defend the current regime, just that the orientation of the politician matters less than the character.

    As far as this proposal...I think the system would be gamed before the ink was dry.  And that exemptions would be issued that rendered it moot for connected individuals.

    I've said for years (more from an accident/insurance cost perspective than efficiency) that the US needed to raise the driving age to 18 and toughen up the test to get a drivers license.

    Fewer (and better trained) drivers on the road would solve a whole raft of problems...

    In theory there is no difference between theory and practice, but in practice there is!

    On A blogger suggests a $1.00/gallon fuel tax -- after the first 30 gallons posted 2 years, 11 months ago 19 Responses
  • A little googling...

    for 'oil subsidies during clinton administration' will provide a list of articles by Ralph Nader, Democracy Now, Greenpeace and the Sierra Club (to name just a few) making the same complaints/accusations about the oil policies of the then democratic administration (which included Mr. Gore) now being made about the current republican administration.

    Changing the spots on the top critter is not necessarily going to make the problem(s) go away.

    In theory there is no difference between theory and practice, but in practice there is!

    On A blogger suggests a $1.00/gallon fuel tax -- after the first 30 gallons posted 2 years, 11 months ago 19 Responses
  • The problem with one size fits all...

    Jim proposes an alternative to opt-out which he calls a "brown power program."  ...regular power would be compose of a mix that grows increasingly green...while the brown mix is just the coal resources.

    I know Jim, I've worked with before.  He's used to working with the Investor Owned Utilities (IOU's) which have a higher coal percentage than public utilities.  The average fuel mix in WA is 65% hydro, 18% coal, 9.5% natural gas, 5.2% nuclear and the rest biomass, wind, etc.

    So, the 'regular' fuel mix as-is does not have much of a carbon component.  And, for some utilities, it looks even better...

    Our fuel mix (we are a public utility, full requirements customer of BPA...so this is based on their portfolio) is 82.5% hydro, 10.9% nuclear, 4.5% coal, 1.5% natural gas and the rest biomass, wind and landfill gas.

    So, our 'regular' fuel mix is already 94% non-carbon resources.  Hardly what you would call 'brown' and one that most people looking to increase renewable energy would love to get to.  Our wind share is actually larger than it shows, because under CTED (the WA Department of Community Trade and Economic Development) rules, we have to subtract energy sold under our green power program and any resold as REC's.

    In theory there is no difference between theory and practice, but in practice there is!

    On Believe it posted 2 years, 11 months ago 19 Responses
  • Tell us how you REALLY feel...

    utilities love to devise sure-to-fail voluntary green power programs in order to be able to discredit the concept while covering their collective flanks with public relations

    Not to pick nits, but it wasn't a utility devised program.  State regulators, prodded by public interest groups waving around the survey results showing customers wanted green power (80% of them), but the utilities weren't providing it and claimed people would buy it if the utilities were mandated into providing it.

    So far, they are conspicuous by their absence.  I'm not surprised a majority of customers don't go for it, cost is number one with them.  What frustrates me is that the groups and individuals clamoring for this and advertising themselves as 'environmentally conscious' are not particpating.  If you want to talk about market signals, the overwhelming market signal is that customers aren't interested.

    And not all utilities just bought REC's, some (mine included) bought into projects to build new renewable resources.  And have continued to buy into additional projects well in excess of what our customers are currently purchasing as optional green power.

    And, frankly, the state PUC's write the implementation rules that the utilities must comply with, so if the programs are ineffective, is it the utilities fault?

    In theory there is no difference between theory and practice, but in practice there is!

    On Believe it posted 2 years, 11 months ago 19 Responses
  • I-937 made it a moot point

    Initiative 937 passed, so as the requirements phase in, the cost of renewable energy will become part of the base rate starting in 2009 without an opt-out provision.

    It was/is optional as the state law dictated that it be an optional program.  We were exempt from the law at the time (it only applies to utilities with more than 25,000 customers), but chose to comply with it voluntarily.  We have since grown to more than 25,000 customers (a 'large' utility under WA law), so would be required to comply now, if we weren't already doing so.

    In theory there is no difference between theory and practice, but in practice there is!

    On Believe it posted 2 years, 11 months ago 19 Responses
  • It's more economics than philosophy

    And working utility engineers, with their day to day reality based outlook, start getting excited about the possibilities.  Admit it you guys ARE excited.

    There is more interest and momentum towards renewables within utilities than I think people on the outside are willing to admit...or at least more than they see (witness my somewhat less than lukewarm reception here when I announced I was a utility engineer).  
    However, recognize that well over 90% of the customer base wants two things from the utility.  They want the lights to come on when they throw the switch and they don't want too large of a bill at the end ot the month.

    Beyond that, they don't care.  We began offering a optional green power program before it was mandated by the state.  Surveys had shown that over 80% of people were in favor of green power and would pay more, if it were offered.

    To date (almost 3 years since we began offering it), participation in that program is less than 1% of our customers. We promote it in our quarterly newsletter, we have ads on the radio, we have sign up sheets at the local county fair, we have lobby displays and that's the best we've managed so far.

    When the campaign for I-937 was in full swing (the initiative drive in WA state to require utilities to meet 15% of their load with renewable energy), I would always ask supporters (who were viewing me as the Antichrist, since I work for a utility) if they were participating in the green power program.  Even among the group of folks actively campaigning for a renewables requirement from utilities, an admittedly unscientific poll result was less than 10% were spending their own money to actively support renewable energy.

    The largest 'group' purchasing power through our program are utility employees!

    Just convince your industry to speed up renewables, that will be fine. Thanks!

    Remember the two rules above.  And if the lights are on, cost is the number one concern.

    If you saw my post on the cost of renewables under a different topic, current wind is $2.5M/MW of capacity and conventional generation is $1.5M/MW, but is creeping towards $2.0M/MW.

    Sounds like a pretty small differential, right?

    But remember that energy is different than capacity.  And that you need 3 times the nameplate capacity figure to try and provide an equivalent amount of energy (we'll leave out the discussion of reserves and backup).

    So, for a given amount of delivered energy, you are now looking at $7.5M/MW for wind (currently the most cost effective renewable) vs. $2.0M/MW for conventional generation.

    All of the sudden, you are looking at a huge price difference and a major impact on rates.  And remember that however much the particpants on this list might feel that is an acceptable cost, there are low and fixed income customers out there that require assistance with their bills with rates at current levels.

    In theory there is no difference between theory and practice, but in practice there is!

    On Believe it posted 2 years, 11 months ago 19 Responses
  • Probably dispatch.

    the coal capacity factors declined and the combustion turbine capacity factors increased with increased wind energy.

    My guess would be that they are assuming the coal plants would be dispatched when the wind is available and bring a gas CT on line to match the wind output to the load.

    I'm not sure about their model, but I've seen that kind of result from the AURORA system models that BPA and the NW Power and Conservation Council run.

    Of course, that's one of my issues with computer models.  They will show a coal plant being dispatched for a few hours and base market costs (and more recently emissions 'savings') on those assumptions.

    In reality, due to the restart-ramp up-ramp down times, the coal plant will NOT actually be dispatched, unless it can be done for an entire week or month, so the result is classic stereotypical GIGO.

    In theory there is no difference between theory and practice, but in practice there is!

    On Believe it posted 2 years, 11 months ago 19 Responses
  • Data tables don't match Powerpoint conclusions

    I only skimmed this, but, per the Powerpoint, integrating up to 25% wind can be done with little or no impact to their reserve levels at little to no cost.  Sounded pretty good.

    So (silly me!), I had to open the report and head for the data tables...must be a personal shortcoming.

    The data table for reserve levels shows no required increase in operating or spinning reserve requirements and for 3441 (15%) to 5688 (25%) MW of installed nameplate capacity only a 20 MW required increase in regulating reserves and 24 MW of load following reserves.

    But, at the bottom of the table, there was a 386 MW increase in the "Operating Reserve Margin" that wasn't assigned to any particular category, but increasing as the wind penetration increased.  So, reading between the lines, approximately a 7.5% increase in overall reserve requirements is projected, despite the Powerpoint saying little to no impact on reserves.

    And, when they got to the modeling data to project the actual capacity contribution, the numbers were not particularly encouraging.

    At the 15% penetration rate (3441 MW) modeled output with 2003 actual wind data resulted in an effective capacity of 719 MW.  OK, a bit lower than I expected, but not too far out of line.  However their model using 2005 wind data only resulted in an available capacity of 156 MW!

    The 25% penetration level (5688 MW) had a projected effective capacity of 962 MW with 2003 wind conditions, but only 234 MW under 2005 conditions.

    An annual realization rate of just over 5% of firm capacity to nameplate is 95% in the wrong direction!

    In theory there is no difference between theory and practice, but in practice there is!

    On Believe it posted 2 years, 11 months ago 19 Responses
  • I'll see what I can do...

    I don't get funding for interns.  I wish I did!

    But, I do know of a couple groups looking at wind integration issues, I'll pitch the concept to them and see if one of them might think it's worth funding.  Failing that, I may see what SCADA information I can collect unofficially through contacts at other utilities and see what I might be able to do in my spare time.

    I'm still a bit Grinch-y on the V2G concept, remember you're looking at two AC/DC conversions as well and the data I've seen for the inverters show 6-10% losses.  With typical transmission system losses (on a 115 kV system) in the range of 4-6%, you are conceivably looking at over 30% losses for the total 'transaction'.

    I like the pumped storage concept better.  They use that now at Grand Coulee.  They need to run a certain minimum level of generation and off-peak, there isn't always enough load. So, during those times, they pump water into a secondary reservoir that can be drawn on during system peaks.

    In theory there is no difference between theory and practice, but in practice there is!

    On Believe it posted 2 years, 11 months ago 19 Responses
  • Not as much of a change as you think...

    Rail is linear, point-to-point technology.   I cannot run a "rail truck" from a distribution center to every loading dock in the county.

    No, but, you could use rail transport cross-country to regional truck distribution centers, then use truck transport from there to the loading docks.  That should reduce fuel use for product distribution substantially.

    In terms of the overall efficiency of load moved to fuel consumed, rail (and ocean shipping) are far more efficient than individual trucks.

    A rethinking of the distribution process might help also, considering many times you will see trucks moving identical products in opposite directions on the freeway.

    In theory there is no difference between theory and practice, but in practice there is!

    On Warning: techno-engineering speak ahead posted 2 years, 11 months ago 43 Responses
  • I read the link as more positive

    Meanwhile copmpanies like Franklin are starved of necessary capital...

    Same old monopoly gaming, by banks, venture capital firms, and the auto and oil industries.

    Soldiers in WW2 would have gone into battle on mules instead of in jeeps...

    Not quite sure how this relates to the link you provided?  The link said Franklin had just gotten a $1M grant from the Navy to develop a phase 2 prototype.

    Sounds more like the goverment (and the military, no less) is encouraging the concept.

    Also, one of the big selling points of hydrogen fuel cells was that the exhaust was only water vapor.  If the SOFC uses conventional fuels, seems like there will be residual waste, either in the form of solids (probably preferable, they could be collected when refueling and reprocessed) or gaseous.

    Do you have any information on the emissions from this type of fuel cell?

    In theory there is no difference between theory and practice, but in practice there is!

    On Warning: techno-engineering speak ahead posted 2 years, 11 months ago 43 Responses
  • Shouldn't be too hard to start a study...

    As more and more wind systems are coming on line across the US, if the plant operators are willing to share output data, the correlation study should only be a matter of obtaining the hourly output data and graphing it.

    Public utilities usually have no problem releasing data, privates could probably be convinced if the results were only released in aggregated form that doesn't release specific data from individual locations.

    That should provide at least a preliminary figure for what firm regional output could be expected compared to nameplate and a corresponding figure for the reserve level required as well.

    There must be a grad student somewhere looking for a project...

    In theory there is no difference between theory and practice, but in practice there is!

    On Believe it posted 2 years, 11 months ago 19 Responses
  • You're probably right...

    I'm sure there is an overall net energy benefit to the internet, I know we did the vast majority of our Christmas shopping online rather than deal with the malls.

    Just (as usual, I guess) pointing out factors that people tend to overlook.  

    In theory there is no difference between theory and practice, but in practice there is!

    On How the internet is changing news consumption habits posted 2 years, 11 months ago 12 Responses
  • Yeah, but...

    Electronic media cannot be assumed to be environmentally benign either!

    You may have read in the news lately about new internet data servers locating in the Northwest.  Those data centers are approximately a 50 MW load each (my utility has an average load of 75 MW for 31,000 customers).

    So, there is still a fairly significant environmental impact even if you convert to an electronic format.

    In theory there is no difference between theory and practice, but in practice there is!

    On How the internet is changing news consumption habits posted 2 years, 11 months ago 12 Responses
  • Fish ladders

    They are out there and do work...although like anything, the more they study, the more they find that can be improved.

    Fish issues on the Columbia River have generated enough reports to denude most of Washington's forests and probably create a good share of the environmental concerns about habitat!  ;-)

    Most of the current fish enhancement work is increasing juvenile fish survival heading downstream; modified turbine runner design (which has a side benefit of increasing power output slightly), bypass systems to try and keep as many fish as possible out of the turbines, etc.  Increased flow rates are also part of that.

    BTW, most people tend to think of the turbine blades as a giant Cuisinart, but the runners are typically 4-5' apart and the juvenile salmon are about finger sized.

    In theory there is no difference between theory and practice, but in practice there is!

    On It's all about electricity posted 2 years, 11 months ago 72 Responses
  • Sorry it took a while to get to this...

    What is the construction cost and energy production of wind systems?

    The first phase of the Nine Canyon project was 48 MW with a construction cost of $70M.  The second phase was 15.6 MW at an additional cost of $21M.  Estimated annual output of those phases combined is 175,000 MWh annually.

    The pricing model for these projects isn't a flat per MWh cost.  They were constructed by Energy Northwest, a Joint Operating Agency (JOA) of which we are a member.  Due to the financing agencies concern about reliability, output, etc., we were required to sign a Power Purchase Agreement (PPA) obligating us to a percentage share of the annual operating budget in return for a percentage share of the annual project output.  We are obligated to pay the operating budget even if the facility cannot generate any energy!

    We then have to pay for transmission costs to have the power delivered to our system and costs for losses, plus ancillary service charges for storage and shaping the variable output into full MW blocks for transmission scheduling.

    Currently the shaping is done through the BPA hydro system, which is an ideal system to compensate for wind!  Unfortunately, there are increasing restraints on river operations to maintain specific flows for salmon, so BPA has declared a moratorium on providing any additional shaping services for wind.

    Taking the last two years output divided by the last two years costs comes out to just over $60/MWh.  Which probably looks great to most of you, but our wholesale cost for power out of the Columbia River system is just over $30/MWh, so we are paying approximately double our current wholesale cost for our wind energy.

    The in progress projects are estimated at $65-75/MWh.  The still in planning stages project may wind up as high as $85/MWh.  Several factors in that...general construction costs are up, steel prices are up and with more and more states implementing Renewable Portfolio Standards, competition for wind turbines is up.

    Incentives are interesting.  Private developers can get the Production Tax Credit (PTC) which is locked in for 10 years at $18/MWh if the PTC is in effect for the tax year in which the project is completed.

    On the public side, we are eligible for the Renewable Energy Production Incentive (REPI), which is equivalent in amount ($18/MWh), but subject to annual funding by Congress.  To date, we have received about 60% of our REPI eligibility.  With the changes made to REPI under EPACT 2005, estimates are we will receive about 50% of our eligible funding for the balance of the project, which will increase the actual cost somewhat.

    So, the intial projects were about $1.5M/MW, which will increase to about $2.5M/MW for the more recent ones.  Conventional generation is in the $1.5M/MW range.

    In theory there is no difference between theory and practice, but in practice there is!

    On It's all about electricity posted 2 years, 11 months ago 72 Responses
  • Don't put words in my mouth...

    What about nuclear waste, why isn't that a deal breaker?  Arrrgh!

    And just exactly when did I say anything about nuclear power???  

    Or, for that matter sticking with the status quo?  All I did was point out some potential problems with an idea that was presented...which apparently violates some unwritten part of the FAQ.

    reverse flow problem is not a problem for solar and wind, why would it be difficult to solve for v2G?

    For small scale, net metering type projects, there is no reverse flow to speak of.  The output slows down the utility meter, or in some cases, for short periods of time, may run it backwards, but will not feed back significantly over the distribution system.  Most residential systems are less than 2 kW.

    The proposed V2G concept is to use lots of 2 to 8 kW hybrid vehicle batteries to serve as a reserve for intermittant renewable resources for up to several hours.  It may not be a concern on an individual service line or transformer.

    It may not be a concern on the overall system and actually may work fine.  However, I do think there is a need to do some analysis, as depending on where the vehicles are actually located on a utilities system, when large numbers of them might be in close proximity, as they aggregate into MW quantities, there can be issues with the capacity of the system to accomodate that load.

    If you look at the utility lines in your area, you will see they are fairly large close to the substations, where they carry their maximum load and get smaller and smaller as you get further out.  If a large number of vehicles happened to be located near the end of a smaller line and all fed back into it at once, it could exceed the ampacity of the line.  At best a blown fuse, at worst, melting the line.

    The system protection scheme is also based on the flow from the substation to the end of the line.  If there are significant flows in a reverse direction, fuse sizes may have to be adjusted, which could affect the ability to clear a system fault when flows are in the 'normal' direction.

    In theory there is no difference between theory and practice, but in practice there is!

    On It's all about electricity posted 2 years, 11 months ago 72 Responses
  • Let's talk about actual accomplishments...

    Don't wait TOO long engineer.  and 100s of billions will be spent on the status quo power systems that got us into these troubles.

    Considering we have known about the problems with the status quo energy saystems since the 70s, maybe the mindset you are using is a bit too careful?

    Status quo power systems?  I work in the Pacific NW (almost 60 out of 72 hours at one point during this latest storm!) where we are over 80% hydro power.  We have the only landfill gas electrical generation system in the US and (although with all the new construction this might have changed) both the largest privately funded and publicly funded wind farms in the US.

    We began our conservation efforts in the early 80's...as an intentional effort to avoid the construction of new generating facilities.  Just exactly how set do you think our mind is on the status quo?

    intentionally finding faults that are not there with renewable distributed power generation

    If you refer back to the sections I picked out of the presentation to the CARB it appears the faults ARE there.  That doesn't mean they can't be fixed and turn this into a workable system, but for crying out loud, what do 'alternative' folks have against facts?

    Why does it seem to be that the people who say they advocate for a free and open exchange of ideas scream the loudest if anyone has an idea different than theirs?

    Are engineers 'captured by the system with their creativity breed out of them'?  Or, maybe, just maybe, do they understand how it works...and therefore what it takes to KEEP it working?

    Wake up and either help or get out of the way.  We don't have time to coddle you all along.

    LOL... Coddle ME along?  Get out of YOUR way?  

    I increased the actual kilowatt hours saved by our conservation programs almost 300% within a year of taking over 16 years ago.  We are not a very large utility, but have averaged a little over two million kWh per year of energy savings each year for the last ten years.

    I've participated in the planning process for five actual wind projects, two of which are on line now, one of which is nearing completion, another just completed it's bond sale and will start construction shortly.  I attend another planning meeting for the fifth one next month.

    What are YOUR actual accomplishments in energy savings and renewables?

    In theory there is no difference between theory and practice, but in practice there is!

    On It's all about electricity posted 2 years, 11 months ago 72 Responses
  • So who gets more done???

    So engineers tend to be skeptics (not disagreeing!) but there is more value in actually getting things done?

    I would venture a guess that there is very little infrastructure out there that was not designed, overseen and verified when complete by an engineer (or group of engineers).

    Skeptics make bad managers and even worst leaders.  No one would want to be married to one.

    Just FYI, I am a department manager and leader and have gotten high praise at both from those paying me to do so and those working for me...

    I've been married to the same person for 30+ years.  Heck, my kids even liked me when they were teenagers!

    in the end the bitter sting of finding fault comes out.  It is especially easy to find fault when there is little or no data to support a position.  A skeptic can really tear into one of those.

    And you think that's a BAD thing???

    When someone is proposing a major change in something as critical as the national electical grid, and spending a significant amount of money to do so, do you really think it should be pursued when there is "little or no supporting data"?

    I don't even know how to respond to that...

    Maybe I need to try and fit my resume in my signature block...I may be a Skeptic, and ask uncomfortable questions, but I've been the head energy conservation person at my utility for over 16 years, on several Technical Advisory Groups for conservation and renewable energy and in my current position as Power Supply Manager, overseen our involvement with five different wind projects.

    I think I've 'managed' to do my share in terms of actual energy savings and renewable energy in the ground and delivered to the grid.

    In theory there is no difference between theory and practice, but in practice there is!

    On It's all about electricity posted 2 years, 11 months ago 72 Responses
  • Spinning reserves...

    There seems to be a slight misunderstanding of the term 'spinning reserve'.

    Electricity 'grids', such as the Western Electric Coordinating Council (WECC, one of seven such entities in the US), develop operating rules for interconnected transmission systems that all Control Area (CA) operators abide by.

    These rules govern such things as reserve capacity.  Operating reserves are those generating resources that can be brought on line to take the place of other generating facilities taken off line for scheduled maintenance.

    Scheduled, since from a 'cold start', a coal plant (I know, I know, but like it or not, they are out there for some time to come) can take as much as 48 hours to reach full output.  Natural gas combustion turbines are faster, but can still require as much as 8 to 12 hours.

    Operating reserve requirements are 5% of the overall system capacity for hydropower, 7% for thermal generation.

    For unscheduled outages, there is the spinning reserve requirement, which is 50% of the operating reserve, or 2.5% of hydro capacity, 3.5% of thermal capacity.

    It is called spinning reserve as it is supposed to be running, ready to be switched into the grid within seconds in case of a sudden, unplanned outage with another generator.  Could be fuel problems, mechanical problems or even the loss of the transmission line feeding from the generator, but it needs to be on line, ready to go, not 'gee, maybe we ought to see if this is available'.

    Just a little information/clarification.  

    In theory there is no difference between theory and practice, but in practice there is!

    On It's not the key to making renewables work posted 2 years, 11 months ago 23 Responses
  • It's all in the implementation

    In 1991 Washington State adopted an 'energy code' requirement for residences.  In 1994, they did the same for commercial buildings.

    As the head of a utility energy conservation department, I obviously took great interest in this.

    After the initial fanfare, enforcement was turned over to the local building code enforcement agencies.  When inspecting buildings that were implementing utility programs, which were to exceed code, we found in many cases, the local jurisdiction did not look for or enforce the energy code requirements.

    When I tried to speak to them about it (field inspectors clear up to department heads), I was told "we're here for health and safety, we could care less about that energy crap".

    An entity with an interest in actually seeing the energy savings realized needs to be in charge of the inspections.

    In theory there is no difference between theory and practice, but in practice there is!

    On Codes are springing up in cities big and small posted 2 years, 11 months ago 4 Responses
  • Better to look for problems BEFORE implementation!

    Mr. Engineer keeps looking for problems:

    It's my job!  Or, rather, during my career in the industry, I've found it's a good idea to have others look at your idea and see if they can spot any flaws BEFORE the project is implemented.

    Having BTDT for 30+ years in the industry, I'm attempting to make sure all the potential problems have been discussed before we spend a few billion dollars and find out it doesn't work quite the way we thought.  I've found over the years having someone play 'Devil's Advocate' is useful in that process.  

    All in all, I think you're looking at phenomena and choosing to see them as problems instead of opportunities.

    Well, I will admit I haven't done a lot of research on V2G, but based on your comments here, I did a quick Google search and found a presentation by Willett Kempton, a professor at Delaware University in September 2006, so fairly recent, to the California Air Resource Board regarding the implementation of V2G by Sacramento Munincipal Utility District.

    A few applicable quotes from his Powerpoint are:


    • Uncertain ability of the electrical distribution system to manage bi-directional
      flow of power (what % of a feeder's load can be back fed through transformers?)
    • SMUD: 570,000 households; 3,300 MW peak load; Proposed 200 MW + wind
    • Assume 1/2 of households have V2G-capable cars, of which 1/2 are available when needed, each with 1/2 storage
    • assumption that 100% of wind capacity needed for regulation, but for less than 1/2 hour. V2G could fill in for 250 MW of wind for 8 hours
    • Given SMUD diurnal cycle of wind/load and 30 miles average drive, this would eliminate significant electric-range--so PHEV may not be suited for diurnal wind storage.

    I would say that sounds a lot closer to some of my statements than some of yours...

    142,500 vehicles to back up 250 MW for 8 hours?  Are that many vehicles actually going to stay plugged in for that long?  What about the 72 hour periods of no wind I mentioned?

    There may be problems with the back flow on the distribution system? Gee, that sounds familiar!  I believe you referred to my concern as trivial?

    In theory there is no difference between theory and practice, but in practice there is!

    On It's all about electricity posted 2 years, 11 months ago 72 Responses
  • Thanks...

    To be perfectly honest, I haven't done much research on the sources of biodiesel.  I'm mostly familiar with recycled french fry oil and there has been much talk of local WA farmers converting existing farmland to biodiesel crops.

    Until you provided that, my answer to 'would you care where it came from' would have been 'huh?'

    Interesting.  So, now we will be invading third world countries for their soybean supplies to ensure our biodiesel supply? :-)On It's all about electricity posted 2 years, 11 months ago 72 Responses

  • Decentralization

    >Instead of huge power plants and trillions
    >in grid upgrade, use vehicles people have
    >already purchased to backup renewables.

    >But I think that the whole 64mw would hardly
    >ever  need to come from backup, it could come
    >from other renewable sources like solar and
    >wind/wave power from a further distance.

    Don't get me wrong, I like the idea of renewables and distributed generation, but a lot of the 'just do this and it will all be OK' ideas don't quite fit with real life electrical systems.

    Distributed generation reduces the need for big centralized electrical generation facilities, however attempting 'grid-wide' use of V2G, solar, wind/wave, etc. as a source/reserve INCREASES the need for transmission lines as you are then trying to move more power from one area to another.  

    Which then creates problems with system protection.  Receiving a system fault signal and tripping a relay with an Point A to Point B line is relatively simple.  However, with a spiderweb of small generation sources feeding into the grid trying to move from Z-Q or M-P is several orders of magnitude more difficult.

    And, while each generation source (rooftop solar, V2G, backyard biodigester...) may only be a couple of kW, dozens of those feeding into the distribution system will hit a substation somewhere and be aggregated into the 64 MW backup and stepped up to 115 kV, which is not trivial.

    >You mean it's going to have to come from
    >something dispatchable.  No argument there,
    >but the options are not as limited as your list.

    Not forever, no.  For the next 10 years, probably.  I've seen data from the research project being conducted by Oregon State University for a pilot wave energy project off the Oregon coast.  Good stuff and very probably will do great things.  BUT, they are still playing with laboratory prototypes.  Commercial scale projects are a long way off.

    Regarding solar as a backup, remember the CF on solar is 15-18% and peaks at +/- 11 AM to 1 PM depending on your latitude and season.  Great for net metering and reducing your personal energy consumption, offsetting an A/C peak, but as a 'reserve' level backup, not terribly useable.

    >And do you lobby for small scale green power,
    >bio-diesel, or other alternatives?

    Yes I do.  My utility was an 'early adopter' for the Nine Canyon wind project.  IE, we committed to it long before there was any discussion of mandates, renewable portfolio standards, etc.  We marketed the output through a voluntary green power program for our customers even though we were exempt from the state requirement to do so.

    That project was developed in three phases and we are one of only two utilities to participate in all three phases.  We have also signed an 'Expression of Interest' in another wind project which is in its preliminary stages.

    We have adopted net metering specifications so customers who wish to construct distributed generation have a financial incentive to do so and have a standardized interconnection setup to try and minimize complications for them.

    Washington state recently adopted a 'feed-in' law offering tax incentives to utilities which voluntarily make payments to customers who install distributed generation.  We are voluntarily particpating and have actually had to wait for the state to finish its rule making to work with our net metering customers to make payment to them.

    We have been offering energy conservation programs since the early 1980's and have participated in (and in some cases initiated) pilot programs to expand the available programs and technologies.

    Personally, I am a member of a couple of regional technical advisory boards dealing with conservation and renewable energy.  I have been involved with and/or supervising the energy conservation and renewable activities at my utility since the late 80's.

    One of our family cars is a Prius and what I would ideally like to see is a diesel-electric hybrid running on bio-diesel.  I checked into the PHEV expanded battery system, but that is an additional $9,500 on top of the $27K we paid and so far is only available to fleet operations.

    And voids the warranty.On It's all about electricity posted 2 years, 11 months ago 72 Responses

  • Practicality

    Don't worry, I've developed a pretty thick skin!  

    A little practical background on capacity factor.  True, you can build three times the nameplate and THEORETICALLY achieve 100% renewable energy delivery, the problem is load following and matching renewable source output to actual loads.

    I have the SCADA (Supervisory Control And Data Acquisition) hourly output data from the Nine Canyon wind project (near Kennewick, WA).  November was the second best generation month since the project went into commercial operation, and had a CF of just over 52%.

    The project has a nameplate capacity of 64 MW.  Even during the second best month of generation with nearly double the typical CF, there were still 11 days of the month where the actual output was under 20 MW and 7 days where it was nominally 0 MW.  What happens when the customer load is 64 MW and the project output is 20...or 0?

    July of 2005 was one of the worst months, with a 16% CF.  There were 23 days of less than 20 MW and 17 with little nominal output.

    If we build the project up to 150 MW of nameplate to try and meet an overall 100% renewable energy delivery target, there will still be 0 MW for those 7 (or 17!) days.  Then, when we get full wind and have 150 MW of output, if there is only 64 MW of load, 80+ MW gets 'dumped' and provides no useful benefit.  Not to mention that we have spent significantly more money to still not be able to meet the load at certain times.

    There is a significant difference between capacity and energy.  Capacity is the instantaneous amount of energy required when the switch is flipped.  Energy is a function of how long the device is on.  Studies have been done of peak load events (winter and summer) over the last two years, as we have developed a lot of wind projects in that time.  In all four peak load instances, wind projects all over the region (which addresses the 'spread them out and there will be wind somewhere' argument) were providing less than 5% of their rated output.

    The Energy Policy Act of 2005 enacted mandatory reliability standards with significant financial penalties for system outages.  If it were your tushie on the line for those penalties how would you build the system?

    Would you rely on a V2G backup that is under someone elses control and may or may not actually be plugged in when the wind stops?  If you have 3 consecutive days with no wind (yes, that happened, even in November), can you count on the V2G generation for the entire 3 days?

    Do you pay the people who have theirs plugged in to provide backup when the wind is blowing and you don't need it?

    Current market prices are in the $50/MWh range.  What I've read about V2G systems is that the cost of energy production is in the range of $125/MWh.  Are you going to spend $125 to generate power that the utility is going to reimburse you for at a rate of $50/MWh?

    Renewables can (and do) reduce the amount of CO2 generated and can displace conventional generation.  But short of successful wave energy or large scale geothermal projects (which have the potential for a baseload CF), a large portion of our generation is going to have to come from conventional fossil fuel (or nuclear) generating resources.On It's all about electricity posted 2 years, 11 months ago 72 Responses

  • A small issue of reliability

    I know no one wants to hear from the utility industry on this, but the fact of the matter is, people tend to prefer it when the lights stay on.

    Wind (at the BEST sites) has a capacity factor (the amount of time it puts out its actual nameplate rated output) of 30-33%.  Which means there are times when it doesn't blow at all.

    Solar is at 15-18% (both of those numbers are Washington State).  

    This means no matter how much 'renewable energy' you deploy, somewhere between 60 to 80% of the time, some other more reliable source of generation needs to be on line to keep lights (and refrigeration and computers and wide screen high definition TVs...) on.

    Conservation is a must!  One wide screen HD TV offsets the energy savings of over 130 CFL's!  Renewables can contribute, but are not baseload generation, no matter how much people want them to be!On It's all about electricity posted 2 years, 11 months ago 72 Responses

  • More missing facts from Portland

    It also helps to not count all the greenhouse gas sources!

    I travel frequently to Portland and sometimes get tired of the constant assumption they are much 'greener' than everywhere else.  In June of 2006, imagine my excitement to find an article in the Portland Monthly magazine titled "How Green Are We?"  Their statistic of 'only' a .7% rise in CO2 emmissions despite population increases only looks at transportation.  I'm not quite sure how their claim for reduced driving fits either, since the number of daily miles driven per capita is up 8%.

    The overall electrical energy use in Portland has increased  by 10% since 1990 and according to the fuel mix disclosure sheets by the utilities serving the Portland area, about 60% of the electricity is generated by coal plants!  This is also about 10% higher than the national fuel mix.

    Despite all their recycling, overall waste generated is up almost 67% since 1985.

    An air quality study shows Portland's air pollutants are 1/3 higher than LA and almost double San Francisco and Seattle.

    Not exactly the environmental paradise they would like everyone to believe!On Some Portland skepticism posted 2 years, 11 months ago 5 Responses