Feeds:
Posts
Comments

Archive for the ‘environment’ Category

Home improvement giant invests in green retrofit startup

Posted in alternative energy, energy efficiency, enviro startups, environment, green startups, green tech, tagged , , , on June 23, 2010| 1 Comment »

This post first appeared on Grist.

I usually don’t write about companies’ funding announcements, unless the amount of money raised is particularly eye-popping. But when Recurve announced Wednesday that it had scored $8 million in its latest round of fund-raising, what caught my attention was who decided to invest in the San Francisco energy retrofit startup.

Along with the venture capital firms re-upping their investments — RockPort Capital Partners and Shasta Ventures — was a new investor, Lowe’s.

That the home improvement giant — $47 billion in sales, 1,700 stores — would invest in a relatively small “green energy remodeling” outfit is a sign that it sees potential in energy efficiency, at least enough to dip its corporate toe in the market.

The investment comes as companies like Recurve push Congress to pass legislation that would establish a $6 billion energy retrofit program called Home Star.

“Lowe’s 60-year history in the home improvement industry will be valuable in shaping Recurve’s growth,” said Pratap Mukherjee, Recurve’s chief executive.

Formerly called Sustainable Spaces, Recurve takes a Silicon Valley approach to energy retrofits. While the startup performs energy audits and dispatches crews to upgrade homes’ systems, it has also has developed software to automate the whole retrofit process for other green building companies in an industry dominated by mom-and-pop shops.

The software, delivered over the Internet, lets retrofitters enter data on a home’s energy profile in a laptop or handheld device during an audit, run electricity consumption simulations, calculate estimates and equipment needed for a retrofit, and generate reports for customers on the spot.

Contractors, of course, then can head down to their neighborhood Lowe’s to buy ducts, insulation, and other materials needed for a retrofit job. Which, in the end, may be one return on Lowe’s investment in Recurve.

Read Full Post »

Batteries included: California passes energy storage bill

Posted in alternative energy, energy, environment, green grid, green policy, renewable energy, solar energy, solar power plants, tagged , , , , on June 22, 2010| Leave a Comment »

photo: Todd Woody

This post first appeared on Grist.

The California Assembly has passed legislation that takes the first step to requiring that a percentage of electricity generated in the state be stored.

Electricity, of course, is the ultimate perishable commodity. If the bill is approved by the California Senate and signed by Gov. Arnold Schwarzenegger, it would apparently be the first time a state will move toward mandating that electricity generated by wind farms, solar power plants, and other intermittent sources be stored for use during peak demand.

That’s key if California is to meet its ambitious mandates to obtain 33 percent of its electricity from renewable sources by 2020.

“Electric energy storage is an emerging industry that offers the possibility to solve a number of major obstacles to the achievement of a sustainable electricity future,” according to an analysis of the legislation prepared by the California Public Utilities Commission in May. “It can effectively address problems such as the integration of intermittent renewables.”

Sponsored by Assembly member Nancy Skinner, a Berkeley Democrat, the bill has been watered down to make it palatable to the state’s utilities and regulators. It originally required the state’s utilities to obtain energy storage systems capable of providing at least 2.25 percent of average peak electrical demand by 2014. By 2020 the target would rise to at least 5 percent.

The latest version of the bill now wending its way through the state Senate requires the California Public Utilities Commission to open proceedings on energy storage and by October 2013 to adopt an initial target — if appropriate — for utilities to meet by the end of 2015.

California Attorney General Jerry Brown, the Democratic candidate for governor, is sponsoring the legislation, which is backed, not surprisingly, by the renewable energy industry and venture capitalists.

“It’s part of our bigger effort to deal with climate change,” Cliff Rechtschaffen, Special Assistant Attorney General, told me. “When we looked at how to develop renewables, the technology is here but stalled by lack of regulatory focus.”

Utilities spend billions of dollars building so-called peaker plants that operate just hours a year to supply electricity and avoid blackouts when demand spikes — say, on a hot day when everyone cranks up their air conditioners.

Such costs — and greenhouse gas emissions — could be cut or reduced if electricity stored from wind farms or solar power plants could be dispatched when demand rises.

A report prepared for the California Energy Commission and released this month concluded that adding gigawatts of wind and solar energy to the grid to meet renewable energy mandates would require “major alterations to system operations.”

Without storage, more natural gas power plants or hydroelectric facilities would need to be built to smooth out grid operations as increasing amounts of solar and wind energy comes online, according to the report prepared by Kema, an energy consulting firm.

“Storage can be up to two to three times as effective as adding a combustion turbine to the system,” the report stated.

The cost and feasibility of such storage systems is another matter, as it remains a nascent industry.

Most efforts focus on using batteries or mechanical systems like flywheels to store electricity. California utility PG&E has launched a pilot project to store electricity in the form of compressed air. Some developers of solar power plants intend to use molten salt to capture heat that can be released and used to drive an electricity-generating turbine after the soon goes down.

“This bill moves storage to the top of the regulatory agenda where it belongs,” says Rechtschaffe

Read Full Post »

PG&E ramps up solar financing with $100 million fund

Posted in energy, environment, green policy, PG&E, renewable energy, solar energy, tagged , , , , on June 21, 2010| Leave a Comment »

photo: SolarCity

In The New York Times on Monday, I write about a $100 million tax equity fund created by PG&E Corporation to finance residential solar installations:

P.G.&E. Corporation, the California utility holding company, has created a $100 million tax-equity fund to finance residential solar installations by SunRun, a San Francisco start-up that leases photovoltaic arrays to homeowners.

The fund, managed by a P.G.&E. subsidiary, Pacific Energy Capital II, is the largest single solar leasing pool to date, according to the company, and marks the growing interest of utilities in the renewable energy financing business.

“We’re in somewhat of a unique position in that roughly half of the nation’s rooftop solar installations are in our service territory,” Brian Steel, P.G.&E.’s senior director of corporate strategy, said in an interview. “We’re at the proverbial ground zero of these new technologies and so perhaps more than any utility holding company in the country we have a strategic imperative to get ahead of the curve through having a propriety seat at the table with a partner like SunRun.”

The financing, announced Monday, follows P.G.&E.’s creation of a $60 million tax-equity vehicle in January for SolarCity, a Silicon Valley company that also leases solar arrays to homeowners.

The $100 million in financing is expected to fund solar installations for 3,500 homes in Arizona, California, Colorado, Massachusetts and New Jersey.

“That a major energy company like P.G.&E. is coming to the table illustrates that distributed solar is becoming part of the mainstream energy business,” said Edward Fenster, SunRun’s chief executive.

You can read the rest of the story here.

Read Full Post »

Transmission constraints derail California solar project

Posted in alternative energy, energy, environment, eSolar, PG&E, renewable energy, solar energy, solar power plants, tagged , , , , , on June 18, 2010| 1 Comment »

photo: eSolar

This post first appeared on Grist.

Amid all the hope and hype about the nascent solar boom under way in California, there’s long been an elephant in the room – transmission. Billions and billions of dollars must be spent to build and upgrade transmission lines to connect dozens of proposed solar power plants to the grid.

Now that elephant has rolled over and squashed one project’s use of innovative solar technology. Last year, California utility PG&E signed a deal with NRG Energy, a New Jersey-based electricity provider, to buy power from a 92-megawatt solar farm called the Alpine SunTower to be built near the desert town of Lancaster, northeast of Los Angeles.

The power plant would deploy solar thermal technology developed by eSolar, a Pasadena startup founded by serial technology entrepreneur Bill Gross. NRG and eSolar earlier had inked a partnership to build 500 megawatts’ worth of solar farms. In January, eSolar reached an agreement with a Chinese company to supply technology for solar farms that would generate a massive 2,000 megawatts of electricity.

PG&E, however, submitted a letter recently to the California Public Utilities Commission  asking approval for a re-negotiated deal with NRG that has resulted in a downsizing of the Alpine SunTower project to 66 megawatts. And instead of deploying eSolar’s fields of mirrors that focus the sun on a water-filled boiler that sits atop a tower to create steam to drive a turbine, the power plant will generate electricity from photovoltaic panels like those found on residential rooftops.

The utility gave no reason for the technology switch. “NRG has not finalized the exact type of panels or the manufacturer of the panels,” a PG&E executive wrote in the letter. “Solar PV panels have been used in installations throughout the world, in both small and utility scale applications.”

However, when I contacted eSolar about the change, I received a joint statement from the company and NRG:

“NRG is returning the project to its originally proposed size to match the transmission capacity available to the project at this time,” it said. “Maintaining the project as previously announced would require waiting for additional interconnection studies and potential transmission upgrades that would delay the project delivery date.”

While solar panels are not as efficient as eSolar’s solar thermal technology in generating electricity, they are modular – meaning you can just keeping adding them to produce a desired amount of power or to match the transmission capacity in an area. ESolar’s power plants, on the other hand, are designed to be built in 46-megawatt units so there’s far less flexibility in scaling them up or down.

It’s too early to say whether this portends other switches from solar thermal to photovoltaic technology, especially as solar cell prices fall and California utilities scramble to meet a mandate requiring they obtain 20 percent of their electricity from renewable sources by the end of this year and 33 percent by 2020.

But the elephant is getting restless.

Read Full Post »

Government sets lease fees for big desert solar projects

Posted in alternative energy, BrightSource Energy, environment, First Solar, green policy, solar energy, solar power plants, tagged , , , , , on June 17, 2010| Leave a Comment »

photo: Todd Woody

In The New York Times on Thursday, I write about the solar industry’s dismay over the rent and other fees the United States government will charge developers to build big solar power plants on federal land in the desert Southwest:

The nation’s biggest landlord, the United States government, has set the rent it will charge developers who build solar power plants on federal land, and some prospective tenants are not happy.

Solar developers will actually pay two fees – the lease for the land along with what the Bureau of Land Management calls a “megawatt capacity fee” based on how much electricity a project generates.

“Since we don’t have authority to collect royalties for wind and solar projects, we had to come up with a methodology to convert that electrical generation into an upfront rent payment,” Ray Brady, manager of the bureau’s renewable energy team, said in an interview.

But potential developers see a disparity. “The proposed B.L.M. rental fees are in many cases two times higher than market rates for private land,” Monique Hanis, a spokeswoman for the Solar Energy Industries Association, said in an e-mail message. “The B.L.M. must collect ‘fair market value’ from developers, but this seems to go beyond that threshold.”

That methodology is a work in progress as the agency tries to adapt decades-old formulas designed for oil and gas leasing and mineral extraction to renewable energy production.

Some 23 million acres of federal property are suitable for large-scale solar development, according to the bureau, and the agency has received more than 200 lease applications from developers who covet hot and sunny desert real estate in the Southwest.

Solar farms typically require vast swaths of land, meaning the lease fees can be considerable depending on a project’s location and local property values. The Bureau of Land Management’s solar rents range from $15.70 an acre in Hidalgo County, N.M., to $313.88 an acre in Riverside County, Calif.

For instance, BrightSource Energy will pay the government about $427,000 a year in rent for its 3,400-acre Ivanpah Solar Electric Generating System in San Bernardino, Calif., now undergoing licensing. The company, based in Oakland, Calif., will also pay an annual megawatt capacity fee of $2.6 million for the 392-megawatt solar thermal power plant. Fees over the 25-year life of the contracts that BrightSource has signed with California utilities would total about $76 million.

In neighboring Riverside County, First Solar, a solar module maker and developer based in Tempe, Ariz., plans to build a 550-megawatt photovoltaic farm on 4,410 acres of federal land. Lease and capacity fees for the Desert Sunlight project will total about $4.3 million a year.

The agency is charging different capacity fees for different solar technologies. Photovoltaic power plants, which deploy solar panels like those found on residential rooftops, are assessed $5,256 a megawatt.

Developers of more efficient solar thermal power plant, which uses mirrors to heat liquids to generate steam that drives a turbine, pay $6,570 a megawatt. The same rate is charged for concentrating photovoltaic farms that use mirrors to focus the sun on a highly efficient solar cell.

If either technology uses energy storage systems to produce electricity when the sun doesn’t shine, the fee jumps to $7,884 a megawatt. The fees will be phased in over the first five years of a power plant’s operation.

Some developers and environmentalists argue that such a fee structure penalizes technologies that are more efficient and thus use less land.

“This is an unfortunate way of emphasizing one technology over another,” said Bobby McEnaney, a land program expert at the Natural Resources Defense Council.

You can read the rest of the story here.

Read Full Post »

The great carbon market crash of ’09

Posted in carbon trading, climate change, corporate sustainability, environment, tagged , , , on June 15, 2010| Leave a Comment »

This post first appeared in Grist.

As we know, one of the few beneficial side effects of the Great Recession of 2009 was the decline in global greenhouse gas emissions as our consumer-centric economy sputtered. But that also sent the voluntary carbon markets into a tailspin, according to a new report released Tuesday by Bloomberg New Energy Finance and Ecosystem Marketplace.

Voluntary carbon markets, such as the Chicago Climate Exchange, allow companies to trade carbon credits, usually as part of corporate sustainability programs where they pledge to neutralize greenhouse gas emissions by buying offsets tied to forestry programs, the capture of methane gas from landfills, and other efforts. (Such markets should not be confused with mandatory, regulated markets such as the European Trading Scheme.)

The value of greenhouse gas emissions credits traded on the voluntary markets plunged 47 percent in 2009 to $387.4 million, while the volume of greenhouse gas emissions traded fell 26 percent to 93.7 millions of tons of carbon dioxide equivalent (MtCO2e).

“The economic recession had a marked impact on the number of companies offsetting greenhouse gas (GHG) emissions,” wrote the report’s authors, who compiled data provided by more than 200 carbon credit suppliers and the carbon exchanges. “In response to the global financial crisis, companies cut back on discretionary funding for corporate social responsibility initiatives, including offsetting emissions. At the same time, the prospects for new compliance demand remained uncertain.”

Still, even in a recession the volume of greenhouse gas emissions traded in 2009 was 39 percent higher than in 2007.

Interestingly, the regulated carbon markets powered through the downturn, growing 7 percent with 8,625 MtCO2e traded at a value of $144 billion, according to the report.

The United States became the world’s biggest supplier of voluntary carbon credits for the first time last year, followed by Latin America and Asia.

Methane-related projects accounted for 41 percent of offset credits while forestry programs were tied to 24 percent of credits and renewable energy to 17 percent.

“Survey respondents were highly positive about the prospects for the global voluntary markets and collectively believe transactions will increase to approximately 400 MtCO2e in 2012, 800 MtCO2e in 2015, and 1,200 MtCO2e in 2020,” the report concluded. “Whether this growth will actually be achieved remains to be seen; it does demonstrate a strong sense of optimism for future activity in the voluntary marketplace.”

Read Full Post »

Silicon Valley tech to help determine size of Gulf oil spill

Posted in environment, green tech, Picarro, tagged , , on June 10, 2010| 1 Comment »

photo: Duke University

In The New York Times on Thursday, I write about how scientists are using machines designed to measure greenhouse gas emissions to fingerprint the Gulf oil spill to calculate its size and movements:

Scientists from Texas A&M and the University of California, Santa Barbara, will try to measure the size of the gulf oil spill more precisely by taking continuous measurements of methane with machines that can also fingerprint deep-water oil plumes to track their dispersal.

“What’s coming out of the spill currently is 40 percent methane by weight,” Dr. John Kessler, an assistant professor of oceanography at Texas A&M, said in an interview. “We’ll be measuring methane in the water and the atmosphere every 10 seconds, which will gives us an unprecedented amount of data.”

After sailing to Gulfport, Miss., on their research vessel, the Cape Hatteras, Dr. Kessler’s team and a group of researchers from the University of California, Santa Barbara, are scheduled to set out on Saturday to conduct measurements. The voyage is being financed by a $160,000 grant from the National Science Foundation.

Other expeditions, including one led by Samantha Joye of the University of Georgia, have been measuring the extent of the oil spill and taking methane measurements. The difference in Texas A&M’s approach is in technology and technique, Dr. Kessler said.

As the Cape Hatteras travels around the gulf, water will be pumped into a device called a seawater equilibrator in which gases in the water are equalized with air. An analyzer made by Picarro, a Silicon Valley company, will then continuously measure the methane concentrations.

The $50,000 Picarro machines are about the size of a desktop computer and take precise, real-time measurements of greenhouse gases like carbon dioxide and methane. The company has sold its analyzers to the National Oceanic and Atmospheric Administration, governments in China and California, and to academic scientists.

A conventional gas chromatograph allows measurements to be taken only every 5 to 10 minutes, Dr. Kessler said.

You can read the rest of the story here.

Read Full Post »

French energy giant jumps into solar market.

Posted in alternative energy, BrightSource Energy, corporate green, energy, environment, solar energy, solar power plants, tagged , , , on May 24, 2010| Leave a Comment »

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.

Read Full Post »

Top execs leave three renewable energy startups

Posted in alternative energy, biofuels, Clipper Windpower, enviro startups, environment, renewable energy, solar energy, solar power plants, SolarReserve, wind power, tagged , , , , , on March 11, 2010| Leave a Comment »

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.

Read Full Post »

California regulators reject utilities’ fuel cell projects

Posted in alternative energy, Bloom Energy, energy, environment, fuel cells, green policy, PG&E, Southern California Edison, tagged , , , , on March 10, 2010| Leave a Comment »

photo: Todd Woody

In The New York Times on Wednesday, I write about California regulators’ preliminary decision to reject requests by two big utilities to install grid-connected fuel cells:

While Google, Wal-Mart and other corporations have embraced fuel cells, California regulators have turned down requests from the state’s two biggest utilities to install the technology.

In a preliminary decision, an administrative law judge with the California Public Utilities Commission found unwarranted an application from Pacific Gas and Electric and Southern California to spend more than $43 million to install fuel cells that would generate six megawatts of electricity.

The technology transforms hydrogen, natural gas or other fuels into electricity through an electrochemical process, emitting fewer or no pollutants, depending on the type of fuel used.

“It is unreasonable to spend three times the price paid to renewable generation for the proposed Fuel Cell Projects, which are nonrenewable and fueled by natural gas,” wrote the administrative law judge, Dorothy J. Duda, in a proposed ruling issued last week. “In addition, the applications do not satisfactorily address how full ratepayer funding of utility-owned fuel cell generation would enhance private market investment and market transformation of the fuel cell industry.”

You can read the rest of the story here.

Read Full Post »

« Newer Posts - Older Posts »

Design a site like this with WordPress.com
Get started