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Archive for the ‘solar power plants’ Category

photo: BrightSource Energy

In last Thursday’s New York Times, I wrote about French industrial conglomerate Alstom’s $55 million investment in BrightSource Energy, a California-based solar power plant builder:

Alstom, the French energy giant, has taken a $55 million stake in BrightSource Energy, a solar power plant builder backed by Google, Morgan Stanley and other investors.

The investment is part of a $150 million round raised by BrightSource in one of the biggest renewable energy deals of the year. The California State Teachers Retirement System also joined the latest funding round as did the existing investors VantagePoint Venture Partners, Morgan Stanley and Draper Fisher Jurvetson.

Based in Oakland, Calif., BrightSource has now raised more than $300 million. Alstom becomes one of the startup’s largest shareholders and will take a seat on the board, according to John Woolard, BrightSource’s chief executive. The French company makes turbines and other power systems for fossil fuel, nuclear and hydro power plants and operates a division that builds high-speed trains.

BrightSource has signed contacts to build solar thermal power plants in California that would generate some 2,600 megawatts. In February, the company obtained a $1.37 billion loan guarantee from the federal government to help finance the construction of its first project, a 392-megawatt power plant to be built in the Southern California desert by Bechtel.

Mr. Woolard said Alstom would help the company as it sought to develop more efficient solar power plants.

You can read the rest of the story here.

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photo: Todd Woody

Green Wombat has been in transition so I’m a bit behind on posting. In case you missed it, in the Sunday New York Times on May 9, I wrote a profile of David Gelbaum, one of the nation’s biggest — and until now — most reclusive green technology investors and environmental philanthropists:

AMID the $6 million homes perched on a beachfront cliff in this conservative Southern California enclave, the seven-year-old Honda Civic hybrid with the Obama bumper sticker is the giveaway.

It’s not the usual drive of choice for wealthy former hedge fund managers like David Gelbaum. Then again, there’s not much that is business as usual about Mr. Gelbaum, an intensely private person who happens to be one of the nation’s largest — and largely unknown — green technology investors and environmental philanthropists.

Mr. Gelbaum has invested $500 million in clean-tech companies since 2002 through his Quercus Trust, amassing a portfolio of some 40 businesses involved in nearly every aspect of the emerging green economy, be it renewable energy, the smart electric grid, sustainable agriculture, electric cars or biological remediation of oil spills. He has poured almost as much into environmental causes.

“I think his impact on green technology is huge,” says Bill Gross, the serial technology entrepreneur and founder of eSolar, a solar power start-up in which Mr. Gelbaum has invested. “He is supporting bolder and riskier bets, and he’s doing it from a different filter than a traditional venture capitalist, and I think that makes a wider opportunity for success.”

In this economic downturn, many venture capitalists have grown cautious about putting money into what Vinod Khosla, the prominent Silicon Valley green tech investor, calls “science experiments.” But Quercus Trust is still taking chances on blue-sky start-ups pursuing technological breakthroughs.

Working outside the clubby venture capital network, Mr. Gelbaum has, until recently, maintained an obsessively low profile. In Silicon Valley, he remains something of an unknown. Associates say his near-invisibility is owed to a genuine modesty and concerns over the security of his family because of his wealth. Recipients of his philanthropy, for instance, signed confidentiality agreements that forbade mention of his name.

Mr. Gelbaum says he decided to break his long silence upon becoming chief executive in February of Entech Solar, one of his portfolio companies that is publicly traded. “This is what’s best for the company,” he says, pointing out that Entech benefits if he maintains a more public profile.

It is too early to predict whether Mr. Gelbaum’s big green bets will pay off. But he’s been capitalizing on two trends: the rapid decline in the price of photovoltaic power, and a focus on cutting capital costs as solar power competition with China intensifies.

His environmental philanthropy also gives him an influence beyond laboratories and boardrooms. He has given $200 million to the Sierra Club and $250 million to the Wildlands Conservancy, a land trust he co-founded that has acquired and preserved 1,200 square miles of land in California, including more than a half million acres of the Mojave Desert.

You can read the rest of the story here.

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Photo: Amonix

In The New York Times on Wednesday, I wrote about Southern California solar company Amonix scoring one of the biggest rounds of green tech funding this year — $129.4 million from investors led by Silicon Valley heavyweight Kleiner Perkins Caufield & Byers:

In one of the biggest green technology deals of the year, a prominent Silicon Valley venture capital firm is leading a $129.4 million investment in a long-promising solar technology that is starting to gain traction in the United States.

The venture firm, Kleiner Perkins Caufield & Byers, and other investors are making a big bet on Amonix, a company in southern California that has spent 20 years developing concentrating photovoltaic power systems that resemble gigantic solar panels.

Plastic lenses focus the sun on tiny but highly efficient solar cells to generate more electricity than conventional photovoltaic panels. The so-called multijunction cells, which were first developed to power satellites, use fewer expensive semiconducting materials like silicon.

“We have reviewed hundreds of solar companies, and Amonix stands out to us as one that has breakout potential,” said Ben Kortlang, a partner at Kleiner Perkins who formerly helped lead the alternative-energy investing unit at Goldman Sachs. “We believe this is the low-cost solar technology for sunny climates.”

You can read the rest of the story here.

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Photo: SolFocus

In The New York Times on Thursday, I wrote that Silicon Valley startup SolFocus is building the first large concentrating photovoltaic power plant in the United States:

The nation’s first big concentrating photovoltaic power plant is under construction in the California desert.

SolFocus, a Silicon Valley startup, is building the one-megawatt solar farm for Victor Valley College in Victorville, a desert community northeast of Los Angeles.

The company builds large solar panels that contain small mirrors that concentrate sunlight onto tiny, high-efficiency solar cells. Though more expensive than conventional solar cells, they use a fraction of the silicon and produce more electricity. That means less land is needed for a SolFocus power plant than one deploying conventional photovoltaic panels.

The SolFocus panels are mounted on trackers that follow the sun throughout the day. While SolFocus has built power plants in Europe, the California project is its first solar farm in the United States. Victor Valley College selected SolFocus after receiving competitive bids from several companies that install conventional photovoltaic panels and thin-film solar systems.

“After reviewing several options for a solar provider, SolFocus demonstrated that it could deliver the best value in solar energy for the college,” Robert Silverman, Victor Valley College’s president, said in a statement. The SolFocus power plant will supply about 30 percent of the college’s overall electricity demand.

SolFocus’ technology needs strong, direct sunlight to maximize electricity production. “If this deployment had been in somewhere in Northern California or Washington or Oregon, we probably wouldn’t have won the battle,” said Nancy Hartsoch, a vice president of marketing at SolFocus. Ms. Hartsoch added that in desert regions, the company’s technology generates electricity at prices competitive with traditional photovoltaic panels.

You can read the rest of the story here.

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photo: Alcoa

In The New York Times on Thursday, I wrote about how aluminum giant Alcoa has become the latest industrial behemoth to jump into the solar business:

Alcoa, the aluminum giant, is testing a new type of solar technology that the company said it believed will lower the cost of renewable energy.

The company has replaced the glass in parabolic troughs with reflective aluminum and integrated the mirror into a single structure.

Parabolic troughs focus sunlight on liquid-filled receivers suspended over the mirrors to create steam that drives an electricity-generating turbine. Parabolic trough technology has been in modern use in solar power plants since the early 1980s, but Alcoa executives said they saw an opportunity to refine the technology and get a foothold in the rapidly expanding renewable energy market.

“If you go out and look behind large parabolic troughs, you’ll find an elaborate truss structure,” said Rick Winter, a technology executive with Alcoa. “From our understanding of aerospace structures, we said if we can modify the wing box design used in aircraft and integrate a parabolic reflector, it would give us a light and stiff structure that would fundamentally affect the cost equation.”

An airplane’s wing box is a unit that integrates support structures and anchors a wing.

“Using aluminum and a wing box design we’re able to create the parabolic curve that we want in the structure itself,” said Scott Kerns, a vice president and general manager at Alcoa. “We can make the skin conform more or less to the way we want to concentrate the light.”

Current solar troughs use glass mirrors that are formed in the shape of a parabola and then attached to a support structure made of aluminum or steel. The executives said they estimate that the all-aluminum Alcoa parabolic trough, which is being tested at the National Renewable Energy Laboratory in Colorado, will cut the price of a solar field by 20 percent due to lower installation costs.

You can read the rest of the story here.

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Photo: BrightSource Energy

In The New York Times on Wednesday I write that California regulators have recommended approval of BrightSource Energy’s 392-megawatt solar thermal power plant, the first large-scale project in the state in two decades:

California regulators on Wednesday recommended that the state’s first new big solar power plant in nearly two decades be approved after a two-and-half year review of its environmental impact on the Mojave Desert.

The recommendation by the California Energy Commission staff comes three weeks after the United States Department of Energy offered the project’s builder, BrightSource Energy, a $1.37 billion loan guarantee to construct the 392-megawatt Ivanpah Solar Electric Generating System, or I.S.E.G.S.

The Sierra Club, Defenders of Wildlife and the Center for Biological Diversity favor solar energy projects but objected to building the BrightSource power plant in Southern California’s Ivanpah Valley, saying it would harm rare plants and animals such as the desert tortoise.

Other environmentalists argued that the project, which features thousands of mirrors that focus the sun on 459-foot-tall towers, would mar the visual beauty of the desert.

In an assessment filed on Tuesday, energy commission staff found that a smaller version of the project that BrightSource proposed last month would mitigate any damage to several protected plant species on the site.

Environmentalists, however, had said the downsized version of the power plant would not sufficiently protect rare species and continued to push for the project’s relocation to more disturbed land.

The energy commission staff determined the visual impact of the Ivanpah power plant could not be reduced but recommended that the commission’s board license the project due to “overriding considerations.”

You can read the rest of the story here.

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photo: Aurora Biofuels

As I write in The New York Times on Friday, it’s spring cleaning at three renewable energy firms as top executives depart SolarReserve, Clipper Windpower and Aurora Biofuels:

The past week has brought a spate of executive departures at renewable energy startups, with the president of SolarReserve, a power plant builder, and the chief executives of Clipper Windpower and Aurora Biofuels stepping down.

Terry Murphy, a rocket scientist who co-founded SolarReserve after a career at United Technologies’ Rocketdyne division, has started a new venture called Advanced Rocket Technologies in Commercial Applications, or ARTiCA. The firm will evaluate green technologies for entrepreneurs and investors, according to Mr. Murphy.

Mr. Murphy and SolarReserve both said the departure was voluntary. “With the company solidly executing on its business strategies, Mr. Murphy has transitioned to an external role in providing developmental expertise to other early stage clean energy companies,” wrote Debra Hotaling, a spokeswoman for SolarReserve, in an e-mail message.

When Mr. Murphy left Rocketdyne to start SolarReserve, the startup licensed Rocketdyne’s molten salt technology so that its solar power plants could store solar energy for use after the sun sets or on cloudy days.

“SolarReserve, in my opinion, is up and running on all four cylinders,” said Mr. Murphy.

“What I did at Rocketdyne and what I did at SolarReserve and what I’m looking at doing in the future is to sift through technologies to find those that can be commercialized.”

Mr. Murphy’s new firm will focus on technologies involving renewable energy, desalinization and sustainability, he said.

You can read the rest of the story here.

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photo: Todd Woody

In an interview I did with green tech entrepreneur Bill Gross for Yale Environment 360, Gross talks about the future of solar energy, his relationship with Google, and how to avoid battles over building large solar farms in the deserts of the Southwest:

Bill Gross is not your typical solar energy entrepreneur. In a business dominated by Silicon Valley technologists and veterans of the fossil fuel industry, Gross is a Southern Californian who made his name in software. His Idealab startup incubator led to the creation of companies such as eToys, CitySearch, and GoTo.com. The latter pioneered search advertising — think Google — and was acquired by Yahoo for $1.6 billion in 2003.

That payday has allowed Gross to pursue his green dreams. (As a teenager, he started a company to sell plans for a parabolic solar dish he had designed.) Over the past decade, Gross has launched a slew of green tech startups, including solar power plant builder eSolar, electric car company Aptera, and Energy Innovations, which is developing advanced photovoltaic technology.

But it has been eSolar, backed by Google and other investors, that has been Idealab’s brightest light. In January, the company signed one of the world’s largest green-energy deals when it agreed to provide the technology to build solar farms in China that would generate 2,000 megawatts of electricity — at peak output the equivalent of two large nuclear power plants. And last week, eSolar licensed its technology to German industrial giant Ferrostaal to build solar power plants in Europe, the Middle East, and South Africa. Those deals followed eSolar partnerships in India and the U.S.

ESolar’s power plants deploy thousands of mirrors called heliostats to focus the sun’s rays on a water-filled boiler that sits atop a slender tower. The heat creates steam that drives an electricity-generating turbine. Last year, eSolar built its first project, a five-megawatt demonstration power plant, called Sierra, in the desert near Los Angeles.

This “power tower” technology is not new, but what sets the company apart is Gross’ use of sophisticated software and imaging technology to control the 176,000 mirrors that form a standard, 46-megawatt eSolar power plant. That computing firepower precisely positions the mirrors to create a virtual parabola that focuses the sun on the tower. That allows the company to place small, inexpensive mirrors close together, which dramatically reduces the land needed for the power plant and cuts manufacturing and installation costs.

“We use Moore’s law rather than more steel,” Gross likes to quip, referring to Intel co-founder Gordon Moore’s maxim that computing power doubles every two years.

You can read the interview here.

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photo: Ausra

The week kicked off with French nuclear energy giant Areva’s acquisition of Silicon Valley solar company Ausra. As I wrote Monday in the Los Angeles Times:

French nuclear energy giant Areva has jumped into the U.S. renewable energy market with the acquisition of Ausra, a Silicon Valley solar power plant startup backed by high-profile venture capitalists.
Terms of the deal were not disclosed, but in an interview on Monday, Areva executive Anil Srivastava said that the price the company paid for Ausra was in line with the $418 million that rival Siemens spent last year to acquire Solel, an Israel solar power plant builder.

That would be a decent payday for Ausra’s investors, which include marquee Silicon Valley venture capital firms Kleiner Perkins Caufield & Byers and Khosla Ventures.

“The current shareholders are very well-reputed venture capitalists and I can assure you they negotiated very well,” said Srivastava, the chief executive of Areva’s renewable energy division.

You read the rest of the story here.

And the week is ending with Thursday’s announcement of another Silicon Valley-European deal. This time, as I write in The New York Times, California’s SunPower is acquiring a European solar developer:

SunPower, a leading Silicon Valley solar company, said on Thursday that it has agreed to acquire SunRay Renewable Energy, a European photovoltaic power plant builder, in a $277 million deal.

The acquisition follows Monday’s purchase of Ausra, another Silicon Valley solar technology company, by Areva, the French nuclear energy giant in a deal that an Areva executive valued at around $400 million.

SunPower has previously supplied solar panels to SunRay, which has a pipeline of projects in Europe and Israel that totals 1,200 megawatts. SunRay, which is headquartered in Malta, is owned by its management and Denham Capital.

You can read the rest of that story here.

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photo: eSolar

In my new Green State column on Grist, I take a look at the implications of California startup eSolar’s 2,000 megawatt solar thermal deal with China:

Forget Red China. It’s Green China these days—at least when it comes to making big renewable deals.

Friday night, a Chinese developer and eSolar of Pasadena, Calif., signed an agreement to build solar thermal power plants in the Mongolian desert over the next decade. These plants would generate a total of 2,000 megawatts of electricity. It’s the largest solar thermal project in the world and follows another two-gigawatt deal China struck in October with Arizona’s First Solar for a massive photovoltaic power complex. Altogether, the eSolar and First Solar projects would produce, at peak output, the amount of electricity generated by about four large nuclear power plants, lighting up millions of Chinese homes.

Is China the new California, the engine powering the green tech revolution?

Yes and no. When it comes to technological and entrepreneurial innovation, Beijing lags Silicon Valley (and Austin, Boston, and Los Angeles)—for now. But as a market, China is likely to drive demand for renewable energy, giving companies like eSolar the opportunity to scale up their technology and drive down costs.

[We’ll pause here to state the obvious: China’s investment in renewable energy and other green technologies is miniscule compared to the resources devoted to its continued building of coal-fired power plants and efforts to secure dirty oil shale supplies in Canada and elsewhere.]

“All the learning from this partnership will help us in the United States,” Bill Gross, eSolar’s founder and chairman, told me. “I think as soon as the economy improves in the rest of the world and banks start lending, there will be a lot of competition in the U.S. and Europe. But, until then, China has the money and the demand.”

In a one-party state, a government official saying, “Make it so,” can remove obstacles to any given project and allocate resources for its development. Construction of the first eSolar project, a 92-megawatt power plant, in a 66-square-mile energy park in northern China, is set to begin this year

“They’re moving very fast, much faster than the state and U.S. governments are moving,” says Gross, who is licensing eSolar’s technology to a Chinese firm, Penglai Electric, which will manage the construction of the power plants. Another Chinese company will open and operate the projects

You can read the rest of the column here.

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