Massive 250 MW Solar Farm's Construction Begins in California Next Year
December 1, 2010 11:20 AM
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A map of the planned 250 MW solar power plant, showing preserved land (green) and installation area (blue).
(Source: NRG Solar/SunPower)
The plant will be located roughly halfway between San Francisco and Los Angeles, just south of California's Bay Area.
Plant would take around 15-20 years to break even if electricity was sold at coal power rates
If there's one thing critics and proponents of solar power alike can agree upon, it's that solar power, like any commodity, will go down in price when it is produced at a greater volume. Recently announced plants, like a
280 mega-watt (MW) installation
in the Arizona desert go a long way towards achieving that sort of volume increase.
As does a new 250 MW installation in San Luis Obispo County, California which was
this week. Construction on the new plant will commence
next year and is expected to create 350 construction jobs.
San Luis Obispo is a coastal county that is relatively rural and lightly populated by Californian standards. It's roughly halfway between Los Angeles and San Francisco, two of the state's biggest cities.
The new plant will be a joint venture between NRG Solar, Inc. and SunPower Corp. -- two veteran solar power firms (SunPower, alone, will have installed over 1.5 GW of solar power by the year's end). NRG Solar is expected to pitch in $450M USD over the four year launch period. NRG will own the plant, it is basically contracting SunPower to design, build, and operate the plant.
The plant will begin producing electricity in late 2011. By 2012 to 2013 it is expected to reach full capacity, as construction completes. The plant is expected to provide enough power for 100,000 households.
The new plant is named the "California Valley Solar Ranch".
NRG Solar is seeking government loans from the U.S. Department of Energy to initially finance the construction. While U.S. President Barack Obama recently
handed out $1.85B USD
in grants to solar power projects, the new installation likely will not receive any of this money.
Securing a government loan is critical to the NRG and SunPower's plan. States Howard Wenger, president of the utility and power plants business group at SunPower, "The DOE is playing a critical leadership role in supporting renewable energy that provides economic and environmental benefits, as well as a secure, stable energy supply in the U.S."
The project has been in the works for the last two years. It is expected to be operational for at least 25 years.
Challenges to the plant's success remain. Currently environmental activists in California are
vigorously resisting large solar and wind installations
, which they fear will damage fragile ecosystems. They have filed lawsuits to try to block similar projects.
The California Valley Solar Ranch project may placate these critics, thanks to the 2,399 acres it sets aside as a wildlife habitat. The plant and associated facilities are expected to occupy 1,966 acres of land.
Another challenge is the underlying economics. While the California Public Utilities Commission has agreed to buy 25 years worth of power from the installation, likely at an inflated price, it remains to be seen exactly how much money the plant will make. Coal power costs around $0.06-$0.08 USD per kilowatt-hour, so if the solar plant's power was sold at an equivalent rate, it would take around 15 to 20 years for the plant to break even. Thanks to large markups to alternative energy power, though, it should break even much sooner, boosting NRG Solar and SunPower. Nonetheless, some consumers may be unhappy with paying this kind of markup so that their power can be "greener".
Still, it's common knowledge that you have to invest up front to gain access to new technology. And with large scale installations like this new one in California and the currently developing one in Arizona, the cost per kilowatt hour of solar power in the U.S. should fall over the next few years.
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12/1/2010 5:41:13 PM
Every source I find estimates the cost at $12.8 to 15 billion for the Comanche Peak plant. If they expand it they are saying around 27 billion. Anyway they are not cheap. Also stirling engines can run off any heat source. If these things were fitted with nat. gas, biomass, hydrogen etc. they could essentially run all the time. Let's say the Comanche peak plant cost $12 billion on the low side. It powers 1.5 million homes.
The Tessera plant can power 500,000 homes at 2 billion. 12 billions dollars worth of Tessera plants could power around 3 million homes.
This tech is still in it's infancy and has huge potential, and I am not quite sure why you think it will last as long. Stirling engines are pretty simple devices that are easy to repair.
12/2/2010 9:52:36 AM
The Tessera plant is 660 MW capacity at about 25% capacity factor. The commanche plant will be 3000 GW at 90% capacity factor (assuming you mean reactors 3 and 4). That's 165MW vs 2700MW. Not sure why you would use the bizarre comparison of 'homes powered by'. Nuclear is much cheaper. And the costs quoted for nuclear almost always include decomissioning costs + fueling costs up front.
"If a man really wants to make a million dollars, the best way would be to start his own religion." -- Scientology founder L. Ron. Hubbard
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