LANCASTER -- Southern California Edison is proposing to run new 500,000-volt lines between west Lancaster, Valencia, Acton and Tehachapi to serve a huge expansion of Antelope Valley wind-energy farms.Seventy miles of new very-high-voltage power lines: This is not an alternative, but simply an expansion of our current electrical system. Note also that 4,500 MW of wind power is a 200-400 square mile power plant, hardly an environmentally friendly "solution" and one that would produce (though rarely when needed) barely 4% of the electricity California uses. The proposed lines would not even be able to handle the surge of such a plant's occasional peak production.
Expected to cost $190 million to $250 million, the new lines would replace a lower-power line leading northeast from Santa Clarita, add to an existing power-line corridor from west Lancaster to Acton, and create a new power-line right-of-way north from Lancaster between 100th and 110th streets west.
"We are trying to minimize the impact by either building it within existing lines or by replacing existing lines," said Charles Adamson, Southern California Edison's project manager.
With a post-energy crisis state law ordering utilities to get 20 percent of their electricity from "renewable" sources by 2017, state officials say the Tehachapi-Mojave area has the potential to grow from 600 megawatts of wind power to as much as 4,500, with another 400 megawatts in Los Angeles County.
The proposed new lines could carry 1,100 megawatts -- enough for about 500,000 to 1 million homes, though the variability of the wind means the turbines would usually be producing far less than the peak output.
December 7, 2004
New lines planned to carry clean power
By Charles F. Bostwick, Staff Writer, Los Angeles Daily News:
December 2, 2004
Why secularism
-- Nicholas von Hoffman
"Democrats Should Oppose Empowering the Pious"
New York Observer, Dec. 1
Great essay
Peter Linebaugh (click the title of this post) writes about the rationalization of torture, reviews the book Caliban and the Witch by Silvia Federici, and ties together witch hunts, capitalism, and the American invasion of Iraq. Related to this theme is the essay "The Ravisht Bride" (50-KB PDF) from my book on Finnegans Wake. Readers might also be interested in my essay "Nature-Guilt."
December 1, 2004
Output debate in Cornwall
A story from Devon reports on a debate sponsored by the Institute of Civil Engineers at the University of Plymouth. I note one item:
The 30% figure is the total annual output as a percentage of the facility's rated capacity. In the case of Delabole, ten 400-kilowatt turbines have the capacity of producing 10 × 400 KW × 24 hours × 365 days, i.e., 35 million kilowatt-hours/year. According to the utility that buys the power, they in fact produce 10 million, owing primarily to the variability of the wind. That is 28.5% of their capacity, which the developer generously rounds up to 30%.
That does not mean that the turbines are producing power only 30% of the time, because their output is proportional to wind speed. Typically they begin generating a trickle of electricity when the wind speed is around 8-10 mph, slowly building up to their maximum only when the wind speed is around 25-30 mph. If the wind gusts towards 60 mph, they shut down to prevent damage. The figure of 70% is the amount of time that the wind is within the range of, say, 10-60 mph and the turbines are responding.
So while his critics might cite the 30% output to suggest that the turbines are idle 70% of the time (or he skews their charge that way), Mr. Edwards cites the 70% activity as implying 70% output. In fact, because 30% (or, more accurately, less -- the average throughout the U.K. is 24%) is the average output, about two thirds of the time the turbines are producing less than that.
Edwards also mentions how "popular" his facility is (accepted might be more accurate). He neglects to note how small the ten 1991-vintage turbines are: less than half the height (and they don't need flashing lights) with blades sweeping an area just one fourth that of the typical models proposed on land today.
Mr Edwards [developer of the U.K.'s first wind facility] defended the efficiency of windfarms, saying: "At Delabole they generate for over 70 per cent of the time, and not 30 per cent as is often claimed."This is a typical misleading response.
The 30% figure is the total annual output as a percentage of the facility's rated capacity. In the case of Delabole, ten 400-kilowatt turbines have the capacity of producing 10 × 400 KW × 24 hours × 365 days, i.e., 35 million kilowatt-hours/year. According to the utility that buys the power, they in fact produce 10 million, owing primarily to the variability of the wind. That is 28.5% of their capacity, which the developer generously rounds up to 30%.
That does not mean that the turbines are producing power only 30% of the time, because their output is proportional to wind speed. Typically they begin generating a trickle of electricity when the wind speed is around 8-10 mph, slowly building up to their maximum only when the wind speed is around 25-30 mph. If the wind gusts towards 60 mph, they shut down to prevent damage. The figure of 70% is the amount of time that the wind is within the range of, say, 10-60 mph and the turbines are responding.
So while his critics might cite the 30% output to suggest that the turbines are idle 70% of the time (or he skews their charge that way), Mr. Edwards cites the 70% activity as implying 70% output. In fact, because 30% (or, more accurately, less -- the average throughout the U.K. is 24%) is the average output, about two thirds of the time the turbines are producing less than that.
Edwards also mentions how "popular" his facility is (accepted might be more accurate). He neglects to note how small the ten 1991-vintage turbines are: less than half the height (and they don't need flashing lights) with blades sweeping an area just one fourth that of the typical models proposed on land today.
Dear Alan Chartock
I regret having to add to your pile of e-mails concerning wind power, but I must point out a mistake in your last "I, Publius" column, where you write that "unsightly windmills ... are necessary when substituting wind power for conventional oil energy."
Oil is used for less than 2.5% of the US's electricity generation. Granted, Massachusetts is the nation's fourth largest user of oil for electricity, oil being used for over 16% of its own electricity generation and representing over 7% of the national total.
Most of it (83% nationally), however, is used in older plants that supply base load because they can not respond quickly to fluctuations in demand (or supply). The presence of intermittent wind-generated power would not affect the use of these plants.
The rest is used in combustion engines that provide extra power at times of exceptionally high demand. They are expensive to run but can respond quickly not only to demand spikes but also to sudden drops in supply. The former case would not be alleviated by the presence of wind power (peak demand does not correspond with peak wind-power production), and the latter case would actually become more frequent if wind power became a significant source. That is, more windmills would likely require an increase in the use of oil.
It is not just the unsightliness of potentially thousands of giant wind turbines in New England, scarring many of the most beautiful and wild locations remaining to us, that inspires environmentalist opposition. More importantly, it's wind power's utter uselessness for anything other than generating profit and letting people think they are "green."
Oil is used for less than 2.5% of the US's electricity generation. Granted, Massachusetts is the nation's fourth largest user of oil for electricity, oil being used for over 16% of its own electricity generation and representing over 7% of the national total.
Most of it (83% nationally), however, is used in older plants that supply base load because they can not respond quickly to fluctuations in demand (or supply). The presence of intermittent wind-generated power would not affect the use of these plants.
The rest is used in combustion engines that provide extra power at times of exceptionally high demand. They are expensive to run but can respond quickly not only to demand spikes but also to sudden drops in supply. The former case would not be alleviated by the presence of wind power (peak demand does not correspond with peak wind-power production), and the latter case would actually become more frequent if wind power became a significant source. That is, more windmills would likely require an increase in the use of oil.
It is not just the unsightliness of potentially thousands of giant wind turbines in New England, scarring many of the most beautiful and wild locations remaining to us, that inspires environmentalist opposition. More importantly, it's wind power's utter uselessness for anything other than generating profit and letting people think they are "green."
November 28, 2004
Government at work
A racket: Pass laws requiring the purchase of wind power, grant tax credits to the developers, create a secondary market for "green" credits, and choose your own company over others to take advantage of it all. That's what they just did in Ontario. The tightness of legislators and businessmen around the world suggests it is not uncommon.
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