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World’s largest solar thermal project moves closer to reality

By | August 27, 2010, 8:35 AM PDT

The world’s largest solar thermal power plant is one step closer to coming to California’s Mojave Desert after receiving a stamp of approval from the state’s energy commissioner.

California Energy Commissioner Jeffrey Bryon this month issued a 576-page report recommending that the project be approved. It will be subject to 30 days of public comment before appearing before a five-member commission for final approval.

Construction is slated to begin in the fall.

Oakland, Calif.-based BrightSource Energy is behind the proposed project, which consists of three solar thermal plants that would total 392 megawatts of capacity. BrightSource is funded by Draper Fisher Jurvetson, Google.org and VantagePoint Venture Partners, whom SmartPlanet interviewed in July.

It will be built on more than 3,500 acres of federally-owned land. Power generated from the plants will be sold to PG&E and Southern California Edison.

The project hasn’t been without its critics, however.

Here’s an excerpt from the report:

Much of the debate over the ISEGS project was over the significant adverse impacts to biological resources of the Ivanpah Valley, specifically the federally-listed threatened species, desert tortoise and eight special-status plants found on the project site. There was general agreement by wildlife, botanical, and ecology experts that testified at the evidentiary hearings that there is a combination of both natural and manmade processes that are affecting the global climate; and that these special-status species are not immune to the effects of climate change, but it is possible that they could adapt and survive if given enough time. There was also general agreement that the exact impacts of climate change to the biological resources in the Ivanpah Valley are unknown – various models predict varying temperature changes and precipitation amounts for California’s desert region – resulting in potential detriment or benefit to biological resources, depending on the habitat needs of the species. It is the intent of this Commission to take all reasonable measures to preserve the continued existence of the desert special-status species. This Commission believes that this project, and other renewable energy projects, will result in the reduction of greenhouse gases which will help curb or reduce the impact of climate change to California, thereby allowing for the continued existence of the desert special-status species.

Therefore, this decision overrides the remaining significant unavoidable impacts that may result from this project, even with the implementation of the required mitigation measures described in this decision.

The full report is embedded below.

Ivanpah Solar approval

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Andrew Nusca

About Andrew Nusca

Andrew Nusca is editor of SmartPlanet.

Andrew Nusca

Andrew Nusca

Editor

Andrew Nusca is editor of SmartPlanet and an associate editor for ZDNet. Previously, he worked at Money, Men's Vogue and Popular Mechanics magazines. He holds degrees from the Columbia University Graduate School of Journalism and New York University. He based in New York but resides in Philadelphia.

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Andrew Nusca

Andrew Nusca
Andrew Nusca does not hold any investments in the companies he covers.
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RE: World's largest solar thermal project moves closer to reality
I have two questions regarding the above:

1. How many kilowatt-hours per year will this solar power system produce?

2. Is its projected environmental impact greater than, less, than, or the same as, in proportion to the number of Kw-Hr a year it produces, than we could reasonably expect from a nuclear power plant?
Posted by AlexKovnat
27th Aug 2010
0 Votes
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RE: World's largest solar thermal project moves closer to reality
" Is its projected environmental impact greater than, less, than, or the
same as, in proportion to the number of Kw-Hr a year it produces, than
we could reasonably expect from a nuclear power plant?"

That's a good question.

Your typical nuclear plant would generate about 1,000 Mwh as
compared to this 392 Mwh -- I'm presuming that that's the real output
and the author made a mistake.

This is comparable to Kramer's Junction, where 9 plants combine to
generate almost that much power.

The last nuclear plant we built in the USA was in 1996, and took up
1200 acres of pretty good farmland as compared to 3500 acres of arid
desert.

The impact the nuclear plant had on the farmland was obvious. It's
useless for anything else now, covered in concrete and cooling ponds.

The impact the solar plant would have on the desert? Minimal.

The mirrors will cast some shade. Shade is life in the desert.

Some of the desert creatures might be spooked by having trucks driving
through, and heliostats installed. But after that they should be okay co-
existing with the mirrors.

The actual buildings where the steam turbines will be installed will take
up a tiny fraction of that 3500 acres, likely less than a nuclear reactor
would.
Posted by Jkirk3279
27th Aug 2010
0 Votes
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RE: World's largest solar thermal project moves closer to reality
Building anything, including cities [Las Vagas, Dubai etc.] on the
desert and badlands is the wisest thing we are doing. Leave the
farmland, rainforest, pastures alone. Another surface we can build
on is the hot tropical calm seas where there isn't much life to
disturb. In either case, the building should contribute life to the
surfaces.
Posted by jyanzikong
27th Aug 2010
0 Votes
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RE: World's largest solar thermal project moves closer to reality
"Building anything, including cities [Las Vagas, Dubai etc.] on the
desert and badlands is the wisest thing we are doing."

I'm no fan of Vegas, but at least it provides a laboratory for
recycling resources. We need to learn that as soon as possible.
Posted by Jkirk3279
27th Aug 2010
0 Votes
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RE: World's largest solar thermal project moves closer to reality
The question I asked was not PEAK power output. The "392 MW" peak output figure quoted for the solar cell system, tells us nothing about the AVERAGE power. In other words: How many kilowatt hours per year will that solar installation produce, given that the sun shines only during the daytime?

A nuclear (or for that matter any other power plant, i.e. coal or natural gas) takes a lot of room that could be used for farmland. But that's also true for things like highways, railroad rights of way, airports, and many other things that mankind builds.

Where I live, as recently as 1978 I saw farmland in some outlying areas. Now, that farmland is suburban housing subdivisions.
Posted by AlexKovnat
30th Aug 2010
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RE: World's largest solar thermal project moves closer to reality
Depending on the type of Plutonium produced by a power plant it's half-life can vary between 14 to 24,000 years to bring it to safe levels. After the mishaps at Two Mile Island, Chernobyl, and several hundred "minor" accidents, I vote for Solar. Human arrogance in thinking a fail-proof reactor can be built is a guaranteed accident waiting to happen. Remember, according to man, Jesus walked the planet 2,000 years ago. Consider the legacy after 14,000 years of contamination.
Posted by msdead
31st Aug 2010
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