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Archive for the ‘renewable energy’ Category

Offshore wind and wave farms dispute settled

Posted in energy, environment, green policy, offshore wind, renewable energy, water tech, wave energy, wave power, wind power, tagged , , , , on March 17, 2009| Leave a Comment »

Infighting among U.S. federal agencies over regulation of wind and wave energy development on the outer continental shelf ended Tuesday with an accord that gives the Department of the Interior oversight of offshore wind farms while the Federal Energy Regulatory Commission gets jurisdiction over wave and tidal projects.

While the deal brokered by Interior Secretary Ken Salazar and acting FERC chairman Jon Wellinghoff will allow wind and wave projects to proceed, it’s still unclear what the impact will be on proposals to build combined offshore wind-and-wave farms.

As Green Wombat wrote earlier this month, a Seattle company called Grays Harbor Ocean Energy has filed applications with FERC to build such combo plants off several states. Among them, California, where the city of San Francisco is attempting to scuttle Grays’ proposed 100 megawatt project that would be located in a marine sanctuary in favor of its own 30 megawatt wave farm that would be built closer to shore.

Environmentalists, surfers and sailors also have objected to the Grays Harbor wave farm and the Department of the Interior’s Minerals Management Service had challenged FERC’s right to approve combined wind-wave projects.

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Green energy grows: $325 billion by 2018

Posted in alternative energy, biofuels, renewable energy, solar energy, wind power, tagged , , , , on March 10, 2009| Leave a Comment »

clean-edge-report

Worldwide revenues from the solar photovoltaic, wind and biofuels industries jumped 53% in 2008 to $116 billion and is on track to grow to $325 billion by 2018, according to a report released Tuesday by West Coast market research firm Clean Edge.

Last year’s boom, however, is unlikely to be repeated in 2009, given the global financial crisis. Signs of the slowdown were apparent last year as new global investment in green energy grew by a paltry 4.7% to $155 billion, compared to a 60% rise between 2006 and 2007. In the United States, however, venture capital investments in green tech grew 22% last year to $3.3 billion, representing 12% of all VC investments, according to figures compiled by research firm New Energy Finance.

“2009 is a year to get through,” said report author Ron Pernick during a conference call.

Of course, growth projections for renewable energy are inherently speculative. Green energy investment is strongly dependent on government policy and what the Obama administration gives today in the form of billions in subsidies and incentives a successor can take away. And then there are calamities like the extent of the meltdown of the global economy that few foresaw even a year ago.

The wind industry accounted for a third of renewable energy revenues in 2008, becoming a $50 billion business. Clean Edge projects that employment in the wind and solar industries will grow from a combined 600,000 jobs in 2008 to 2.7 million by 2018.

“As the market transitions to low-carbon fuel and electricity sources, conservation and efficiency efforts, and the deployment of a smart, 21st century grid, we believe clean energy offers one of the greatest opportunities for both local and global economies to compete and thrive,” wrote Pernick and co-authors Joel Makower and Clint Wilder.

They identified as growth areas smart grid technologies, energy storage for wind and solar farms, the Eastern Eureopean market,  power grid infrastructure and micro power grids that provide electricity to self-contained facilities or areas.

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The iPhone app that fights global warming

Posted in climate change, corporate sustainability, energy efficiency, environment, global warming, Google, green grid, green startups, green tech, renewable energy, smart grid, Web 2.0, tagged , , , , , , , , on March 6, 2009| 7 Comments »

tendril-iphone-appHere’s an iPhone app that really could help save the planet while saving stressed consumers’ money: Boulder, Colo.-based startup Tendril this week unveiled a mobile software program that lets people monitor and control their home’s energy use while on the go.

Say you’re sitting in the unemployment office listening to some bureaucrat drone on, so you pull out your iPhone to update your Facebook status and then check on whether that next unemployment check will cover the utility bill. When Tendril tells you that your electricity consumption is spiking and so will your estimated monthly bill, you remember you left the air conditioner set on Arctic. Flick your finger and shut that energy hog down.

That scenario won’t become common for awhile it as relies on a widespread rollout of smart utility meters that will bring the interactive smart grid and real-time electricity pricing into the home. That is happening, albeit very slowly (though the pace is expected to accelerate with billions in the stimulus package being poured into smart grid-related projects. The ability to remote-control your appliance, however, is some years away).

For instance, Tendril, is rolling out a home energy management system for Texas utility Reliant Energy (RRI) that allows customers to monitor and control their electricity use through a video display that sits in the living room. When Green Wombat visited Reliant’s smart house project in Houston last September, the utility’s tech guys showed me their own home-brewed iPhone app.

As anyone with an iPhone knows, Apple’s (AAPL) app store makes it ridiculously easy to turn the gadget into Dr. Who’s sonic screwdriver – a gizmo that does everything but put out the trash and feed your pet bunny. But earth2tech’s Katie Fehrenbacher questions how widespread Tendril’s app would be used given the difficulty in putting any third-party software program on a BlackBerry or other smartphone. But that’s changing by dint of Apple’s growing share of the smartphone market and the advent of the app-friendly Google (GOOG) phone.

Green Wombat is most intrigued by the potential of such apps as the Tendril Mobile Vantage to tap into people’s inherent competitiveness, keeping-up-with-Jones mentality and, in the Facebook era, compulsion to share, share, share. The data generated by smart meters and home energy management systems like Tendril’s will let consumers compare their energy use – and thus contribution to global warming – with their neighbors and friends.

In fact, Tendril is planning to add a carbon footprint feature to its mobile app. Funnel that data into a Facebook newsfeed and let the peer-to-peer pressure go to work to see who can claim Twittering rights to a low-impact lifestyle.

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India inks exclusive solar deal

Posted in alternative energy, climate change, enviro startups, environment, eSolar, global warming, green startups, renewable energy, solar energy, solar power plants, tagged , , , , on March 3, 2009| 3 Comments »

esolar-smart-scalable-solar

photo: eSolar

California startup eSolar said on Tuesday that it has licensed its solar power technology for the construction of up to 1 gigawatt of solar farms in India over the next decade.

The deal with Indian conglomerate ACME Group marks India’s first move into large-scale solar power and is the biggest announced foray of a United States solar power plant company overseas. The agreement calls for ACME, based in the northern Indian state of Haryana, to invest $30 million in eSolar, which will also earn fees for each of its 46-megawatt modular solar thermal power plants that are built.

A gigawatt, or 1,000 megawatts, of solar energy produces enough electricity to keep the lights on in about 750,000 energy-hogging U.S. homes. Presumably, many more homes and businesses can be powered by a gigawatt in India, where electricity shortages are common and the country relies on greenhouse-gas emitting diesel generators.

“We’re exclusively selling to ACME in India and they’re exclusively using us,” eSolar CEO Bill Gross told Green Wombat. “We’d like to do something like this in Spain, in Australia and the Middle East.”

It’s the second big deal for Pasadena-based eSolar in a week. Last Monday, the company inked an agreement to license its technology to U.S. coal-fired utility NRG (NRG) for the development of up to 500 megawatts of solar power plants in California and the Southwest for Southern California Edison (EIX) and other utilities. Meanwhile, the financial crisis is forcing the consolidation of the solar industry, with Monday’s dual deals — First Solar (FSLR) acquired the solar power plant assets of Silicon Valley OptiSolar while Spanish solar developer Fotowatio bought financier MMA Renewable Ventures’ solar portfolio.

eSolar claims it can generate electricity at lower prices than natural gas-fired power plants by mass-producing mirrors called heliostats that concentrate sunlight on a water-filled receiver atop a tower to create steam that drives a turbine. The heliostats are much smaller than those made by competitors, use far less steel and can be quickly and cheaply installed in the field because they’re controlled by sophisticated software, according to Gross.

That allows eSolar to pack more mirrors into the solar field to create relatively compact power plants that can be located near urban centers rather than in the desert. ACME, which makes everything from telecommunications equipment and refrigeration systems to fuel cells, will begin construction of the first solar farm later this year.

ACME will hire contractors to build the solar power plants while eSolar will provide the heliostat fields, power towers and software systems. ACME so far has signed power purchase agreements with Indian utilities for 250 megawatts, according to eSolar.

“The eSolar system addresses obstacles that have previously plagued solar installations and presents a viable, cost-effective alternative that can scale quickly to meet India’s growing energy needs,” ACME CEO Manoj Upadhyay said in a statement.

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First Solar buys rival’s assets in $400 million deal

Posted in alternative energy, First Solar, green startups, MMA Renewable Ventures, OptiSolar, renewable energy, solar energy, solar power plants, tagged , , , on March 2, 2009| Leave a Comment »

First Solar Electric, 701 El Dorado Valley Dr., Boulder City, NV
photo: First Solar

In the second big solar deal of the day, First Solar on Monday announced it was acquiring rival thin-film photovoltaic startup OptiSolar’s solar power plant projects in an all-stock transaction worth $400 million.

The acquisition vaults First Solar into the ranks of big solar power plant developers, giving it control of a 550-megawatt photovoltaic solar farm — the world’s largest — OptiSolar is building for utility PG&E (PCG) as well as 1,300 megawatts’ worth of projects in the pipeline. The deal also includes federal land claims OptiSolar filed on 136,000 acres in the Southwest desert that could support power plants generating 19,000 megawatts of solar electricity.

First Solar CEO Mike Ahearn said 6,500 megawatts of those projects are in the front of the line in the “transmission queue” to connect to the power grid, allowing solar farms to be rapidly deployed over the next couple of years.

“This package in total would be very hard to replicate, if at all,” Ahearn said Monday afternoon during a conference call. “That positions us ideally to be the player in the U.S. utility market.”

OptiSolar spokesman Alan Bernheimer told Green Wombat that OptiSolar will now focus on its solar cell manufacturing operations. “We needed to find a way to realize value for our shareholders,” he said. “This is a wonderful fit. We developed what we think is the largest power plant pipeline while First Solar developed the lowest cost thin-film technology.”

Silicon Valley-based OptiSolar quickly became a leader in the nascent solar power plant market but stalled as the financial crisis hit, forcing the company to halt work on a solar cell factory and lay off half its workers last November. Bernheimer said OptiSolar has applied for a $300 million federal loan guarantee to restart and expand its manufacturing operations.

He said OptiSolar CEO Randy Goldstein will join First Solar, along with about 30 other employees, when the deal closes.

First Solar (FSLR), backed by Wal-Mart’s (WMT) Walton family, has become become known as the Google (GOOG) of solar for its stratospheric stock price. The Tempe, Ariz.-based company jumped into the solar power plant market last year with deals to build small-scale solar power plants for Sempre Energy (SRE) and Southern California Edison (EIX).

The OptiSolar deal follows by hours the sale of solar financier MMA Renewable Ventures’ solar portfolio to Spanish solar developer Fotowatio.  “There’s a shakeout in the marketplace and there’s opportunities for consolidation,” MMA Renewable Ventures CEO Matt Cheney presciently told Green Wombat Monday morning

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Spanish firm acquires big U.S. solar financier

Posted in alternative energy, climate change, energy, environment, global warming, green financing, MMA Renewable Ventures, renewable energy, solar energy, solar power plants, SunPower, Suntech, tagged , , , , , , , on March 2, 2009| 1 Comment »

denverairport-110

photo: WorldWater & Solar Technologies

The consolidation of the solar industry got underway Monday with the acquisition of San Francisco-based green energy financier MMA Renewable Ventures by Spanish solar developer Fotowatio.

The Madrid-based company will purchase most of MMA Renewable’s solar assets – including the world largest photovoltaic power plant and its pipeline of projects – making it one of the biggest solar developers in the United States.

The financial terms of the deal were not disclosed.

MMA Renewable CEO Matt Cheney told Green Wombat that he’ll continue as CEO of what will be called, for now, Renewable Ventures and that his staff will be joining him. MMA Renewable Ventures was a subsidiary of Municipal Mortgage & Equity, which has been hit hard by the financial crisis.

Fotowatio, on the other hand, scored $350 million in funding last July from General Electric (GE) and Grupo Corporativo Landon. “You’re taking a very robust player in the European market see how much opportunity and potential there is in the U.S. market,” says Cheney. “It’ll produce one of the biggest, if not the biggest, independent solar power producers. It’s the story of consolidation.”

MMA Renewable Ventures raises funds to invest in big commercial solar arrays and photovoltaic power plant projects. The company finances the construction of solar systems by companies like SunPower (SPWRA) and retains ownership of the arrays, selling the electricity under long-term power purchase agreements.

Last year MMA Renewable and Chinese solar giant Suntech (STP) created a joint venture called Gemini Solar to build large-scale photovoltaic power plants.  Cheney said Gemini will continue under Fotowatio.

When the deal closes, Fotowatio will gain 35 megawatts of solar projects in the U.S. with another 400 megawatts under development.

Cheney says the Fotowatio acquisition is a sign of the times as the global economic crisis and falling prices for solar cells disrupts the renewable energy market. “There’s a shakeout in the marketplace and there’s opportunities for consolidation.”

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San Francisco’s wave farm fight

Posted in alternative energy, climate change, energy, environment, global warming, Natural Resources Defense Council, PG&E, renewable energy, water tech, wave energy, wave power, tagged , , , , , on March 2, 2009| 10 Comments »

three_in_row_hi_medium

San Francisco on Friday made a bid to rule the waves, filing an application to build a 30-megawatt wave energy farm off its coast in a move to sink a Seattle company’s claim on a nearby patch of ocean.

The company, Grays Harbor Ocean Energy, has filed applications with the Federal Energy Regulatory Commission, or FERC, for wave projects to be built from New Jersey to Hawaii. Wave energy technology remains in its infancy but there’s been something of a land – or sea – rush to secure rights to the most promising ocean sites to produce clean green electricity.

Last October, Grays Harbor filed for a preliminary permit to test technology for a 100-megawatt wave park to be floated 20 to 25 miles off the San Francisco coast.  Grays’ San Francisco Ocean Energy Project “may also generate power from wind turbines” placed on the wave-energy converters, according to the company’s application.

So far the project has generated heated opposition from a coalition of environmental groups, surfers and commercial fishing organizations that have intervened in the case.  They argue that the wave farm’s location in federally protected marine sanctuaries near the Farallon Islands could harm endangered whales, turtles and seabirds as well as interfere with surfers, sailors and pose a navigation hazard for oil tankers and other ships.

“Wave energy projects raise many potential environmental concerns, including elevated hydrocarbon concentrations, electromagnetic field effects, interruption of migratory patterns, toxic releases from leaks or spills, impacts to sensitive spawning areas,” wrote the coalition, which includes the Natural Resources Defense Council, in a Jan. 26 letter to FERC.

The next day, the city of San Francisco moved to intervene in the Grays case, saying it would file a competing application. On Friday, the city did so, asking federal regulators to give priority to its Oceanside Wave Energy Project, arguing there’s only room for one wave farm off the San Francisco coast.

The city’s project would be located eight miles offshore, outside the marine sanctuaries. As San Francisco Mayor Gavin Newsom – a Democratic gubernatorial candidate for 2010 – blogged about the municipal wave farm on Friday, the city filed an affidavit from its consultant stating that the Grays project would “impact the nature, quality and direction of the waves” to be used by the Oceanside wave energy plant.

It’s not the first time that San Francisco has tried to scuttle other wave projects. In June 2007, the city unsuccessfully petitioned FERC to deny utility PG&E’s (PCG) application for wave farms hundreds of miles up the coast from San Francisco, contending companies were trying to lock up choice sites.

Despite the rush to file claims, there’s no guarantee that any wave farm will be built. The preliminary permit that San Francisco has applied for would give it the ability to conduct a feasibility study and test wave energy technology with first rights to secure a license build a full-scale wave energy plant.

Although a range of wave technologies are being developed, they generally involve devices that float or are anchored to the seabed that that transform the motion of waves into mechanical energy which drives an electricty generating turbine. The electricity is transmitted through undersea cables to an onshore substation.

In its application, San Francisco said it was considering a number of technologies but anticipates floating between ten and 30 1-megawatt wave energy converters.  The city estimates it would spend between $1 million and $3 million on the feasibility study over the next three years.

San Francisco’s green scheme isn’t the only headache for Grays. Like the company’s other proposed wave energy projects, the San Francisco wave farm would sit on the outer continental shelf. The U.S. Department of the Interior’s Minerals Management Service claims jurisdiction over projects on the outer continental shelf and a fight has broken out between the agency and FERC over who gets to issue permits for OCS wave projects. On Jan. 26, the agency filed a challenge to FERC’s right to license eight of Grays wave farms that would also feature wind turbines.

Wrote Interior Department attorneys: “Some believe the preliminary permit application is part of an attempt to stake a claim to certain areas through the FERC process with the objective of siting wind energy projects, over which FERC does not claim jurisdiction, or then, according to press accounts, selling those rights.”

image: Pelamis Wave Power

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Berkeley hands out solar checks

Posted in alternative energy, energy, green financing, green policy, renewable energy, solar energy, Sungevity, SunPower, tagged , , , on February 27, 2009| Leave a Comment »

solar_and_your_home_header
photo: Sungevity

Berkeley on Friday hands over checks to the first two homeowners who tapped the California city’s pioneering solar financing program to install solar arrays.

The city fronts the cash for rooftop solar panels for any Berkeley business or homeowner, who pays back the cost through a 20-year surcharge on their property tax bill. If a home is sold, the surcharge rolls over to the new owner. The city council created a Sustainable Energy Financing District and launched a $1.5 million pilot program for the Berkeley FIRST Financing Initiative for Renewable and Solar Technology) in November to finance 40 rooftop systems. It took all of nine minutes for those 40 slots to be filled when the online application went live.

Berkeley issued a bond for the programs that was bought by Oakland-based Renewable Funding, which financed the solar arrays and whose president, Francisco DeVries, devised the Berkeley program when he served as Mayor Tom Bates’ chief of staff. Renewable Funding now is taking the program nationwide as cities from Portland to Tuscon consider adopting similar solar financing schemes. Under legislation enacted last year, any California city can implement a Berkeley-style program.

Municipal financing of solar arrays has become even more attractive since October when Congress lifted a $2,000 cap on federal tax credits for residential systems. Homeowners now can claim a tax credit for 30% of the cost of a solar system. When a state rebate is added, the cost of going solar in California has fallen by half.

Municipal financing programs are good news for solar panel makers and installers like SunPower (SPWRA), SunTech (STP), Akeena (AKNS) and First Solar (FSLR), the thin-film solar company that recently jumped into the residential market.

On Friday, Berkeley homeowner Jeanne Pimentel will receive a check from the mayor to hand over Borrego Solar, which installed her solar panels while homeowner Aaron Mann will sign his check over to Sungevity.

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Big Solar’s software solution

Posted in alternative energy, BrightSource Energy, climate change, energy, environment, eSolar, green startups, renewable energy, solar energy, solar power plants, Southern California Edison, tagged , , , , on February 26, 2009| 3 Comments »

esolar-field_wide_2b
photo: eSolar

SAN FRANCISCO — “It’s all about the software,” says eSolar CEO Bill Gross.

The tech entrepreneur and founder of startup incubator Idealab is explaining how eSolar’s solar power plants can produce carbon-free electricity cheaper than planet-warming natural gas. At the Cleantech Forum in San Francisco, Gross flashes a photo of eSolar’s demonstration solar farm outside the Southern California town of Lancaster, where 24,000 mirrors called heliostats surround two 150-foot towers.  The heliostats concentrate sunlight on a tower containing water-filled boilers and the resulting heat creates steam that drives an electricity-generating turbine. Rivals like BrightSource Energy use similar “power tower” technology but according to Gross, eSolar’s mirror-controlling software and modular plant design will allow it to produce cheaper solar electricity.

For instance, Gross says competitors use large, slightly curved mirrors to focus sunlight. That require big and expensive steel frames to hold the glass in place.  eSolar’s solution: make small flat mirrors the size of an LCD television screen that clamp on to a  5 x 12-inch frame and then use software and Big Iron computing to position the mirrors to create a parabola out of the entire heliostat field.

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

The heliostats roll off an assembly line in China with the wiring and sun-tracking motors built in. “The only tool required to install mirrors in the field is a hand wrench,” Gross says. “There’s  no welding in field, you just install the mirrors on the base. We’ve taken all the labor in the field and moved it to an automated factory.”

The heliostats also do not have to be precisely placed in the solar field, which saves time. “The rows can be wavy as the software will correct for it,” Gross notes. “We don’t need to do extensive surveys to design the field; we just need to leave enough space between mirrors.”

The bottom line: The five-megawatt Palmdale project was built in less than six months. “We think we can finish plants before other people start,” Gross told Green Wombat.

Gross says eSolar has also signed a 92-megawatt deal with a New Mexico utility, which he declined to identify until the agreement is announced. He said his Pasadena, Calif.-based company will also soon unveil a contract to build 500 megawatt’s worth of solar farms in Asia. So far, eSolar has spent $30 million acquiring land – mainly privately owned agricultural property – for solar power plants, according to Gross. He told Cleantech Forum participants that eSolar expects internal rates of return for its partners of between 11% and 14% for U.S. power plants and returns of 20% to 30% for overseas projects.

Also saving time and money are the power towers, which are made from two sections of a windmill tower. At 150 feet they’re half the size of competitors’ towers – again, less steel is needed. The lower height and the software systems that allow more mirrors to be crammed into smaller spaces means that eSolar’s power plants can be placed closer to urban areas where transmission lines are available.

Also unique is the boiler that sits atop the tower. Gross gave Green Wombat a close-up look the proprietary technology. About the size of a cargo shipping container, the “cavity receiver” has openings on either side. The heliostats focus sunlight into the interior of the boiler, which is lined with water-filled pipes.

“The benefit is that the light comes in and even if some light is reflected it can have multiple bounces and still hit the pipes,” Gross says. “We can get all the light inside the cavity all because of the software that controls the mirrors.”

Whether Google (GOOG)-backed eSolar’s plants produce electricity at the low rates Gross is claiming won’t be known until they start coming online. But utilities are betting that this solar software works. Southern California Edision (EIX) last year signed a 20-year-contract with eSolar for 245 megawatts of electricity while coal-dependent NRG Energy (NRG) this week agreed to invest $10 million in eSolar in exchange for the right to develop up to 500 megawatts using the company’s technology. (Southern California Edison is betting even bigger on BrightSource Energy’s power tower technology – two weeks ago the utility signed a 1,300 megawatt power purchase agreement with the Oakland startup – also backed by Google – the world’s largest solar deal to date.)

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PG&E chief: We’ll be solar’s ‘green knight’

Posted in alternative energy, climate change, corporate green, environment, First Solar, green financing, green startups, green tech, investment tax credit, MMA Renewable Ventures, PG&E, renewable energy, solar energy, solar power plants, Southern California Edison, SunPower, Suntech, tagged , , , on February 24, 2009| 3 Comments »

optisolar-panels
photo: Optisolar

SAN FRANCISCO — With the financial crisis dimming solar’s prospects to become a significant source of renewable energy, utility giant PG&E on Tuesday said it will spend $1.4 billion over five years to install 250 megawatts’ worth of photovoltaic panels in California while contracting with private developers for another 250 megawatts. PG&E chief executive Peter Darbee said the utility is also prepared to be a “green knight,” rescuing distressed big centralized solar power plant projects by providing financing so they can get built.

“We have contracted for 24% of our energy to be renewable and we’re concerned whether our [developers] will have access to capital,” Darbee said at PG&E’s San Francisco headquarters during a press conference. “We think financing for these projects may be in jeopardy. PG&E is well-positioned with its $35 billion balance sheet to step up and help.”

PG&E’s (PCG) move to take a direct role in obtaining the renewable energy it needs to comply with California’s global warming laws could be big business for solar module panel makers and installers like SunPower (SPWRA), Suntech (STP) and First Solar (FSLR). The action was prompted in part by a change in the tax laws that lets utilities claim a 30% investment tax credit for solar projects.

Fong Wan, PG&E’s vice president for energy procurement, said most of the 500 megawatts of solar panels will be installed on the ground in arrays of between one and 20 megawatts at utility substations or on other PG&E-owned property. (The utility is one of California’s largest landowners.) A small portion may be installed on rooftops, he said.

PG&E said the solar initiative will generate enough electricity to power 150,000 homes and will provide 1.3% of the utility’s electricity supply.

“There’s no or little need for new transmission and these projects can plug directly into the grid,” said Darbee. “Given our size and our credit ratings and our strength, we can move forward where smaller developers may not be able to do so.”

The California Public Utilities Commission must approve PG&E’s solar initiative, which Wan estimated would add about 32 cents to the average monthly utility bill.  An $875 million program unveiled by Southern California Edison (EIX) last year to install 250 megawatts of utility-owned rooftop solar panels has run into opposition from solar companies that argue it is  anti-competitive and from consumer advocates who contend the price is too high. The state’s third big utility, San Diego Gas & Electric (SRE), has also proposed a rooftop solar program.

Wan acknowledged that objections to Edison led PG&E to design its program so that private developers would have a 50% stake in the initiative. PG&E will sign 20-year power purchase agreements for privately owned solar installations.

PG&E will also need regulators’ approval to inject equity financing into companies developing big solar power plants. The utility has signed power purchase agreements for up to 2,400 megawatts of electricity to be produced by solar thermal  and photovoltaic power plants to be built by companies like Ausra, BrightSource Energy, OptiSolar and SunPower.

“We are looking at the least risky and most developed opportunities to see where we can be the most helpful,” Darbee said.

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