From the Blog

Renewable energy support schemes now present in 127 countries, report finds

by IAN CLOVER, PV Magazine, 28 August, 2013

The Worldwatch Institute — an independent research organization based in Washington D.C. — reports that 127 countries worldwide have now enacted support schemes for renewable energy.

A trends report by the Worldwatch Institute has found that 127 countries worldwide now have renewable energy support schemes in place – up from just 48 as recently as mid-2005.

The report’s author, Evan Musolino, drew the analysis for his “Vital Signs Online” trend from data gleaned from “REN21’s Renewables 2013 Global Status Report”, which he co-authored.

In this latest work, Musolino also reports that 99 feed-in tariff (FIT) policies are currently in place worldwide at either national or state/provincial level, while quotas requiring a specified minimum share of renewable energy power production are evident in 76 countries; up from just 34 in 2004.

Despite the economic downturn leaving a number of countries mired in recession and hamstrung by shrinking budgets, investment in renewable energy development and expansion has generally followed an upward trend, particularly in the solar photovoltaics industry, which has seen module costs fall by as much as 80% since 2008, and 20% since 2012.

At the beginning of this year, 66 countries offered tax incentives on renewable energy development, the report finds. And as the technology has proliferated, so has regional diversity.

In the middle of the decade, 58% of countries that enacted renewable energy support schemes were located in Europe and Central Asia. Today, that figure is slightly more than a third of the global total, with East Asia and the Pacific (21%), and Latin America and the Caribbean (LAC) following closely.

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U.S. online startup makes going solar as easy as booking travel

by NICHOLA GROOM, Reuters, December 2, 2013

In a first on Monday, an online marketplace will allow U.S. homeowners to weigh options for going solar as easily as they can compare prices for airline tickets.

Geostellar, a startup backed by power producer NRG Energy Inc, is seeking to become the Expedia or Orbitz of the solar industry — a one-stop shop where consumers can not only compare the benefits of leasing solar panels versus buying them outright, but ultimately sign up to install a system.

Solar players including NRG, No. 1 U.S. installer SolarCity Corp, Boston-based solar loan provider Admirals Bank, manufacturer and financier Conergy, East Coast installer Roof Diagnostics and Connecticut’s Clean Energy Finance and Investment Authority will feature their products on the site, www.geostellar.com.

Geostellar hopes its platform will allow installers and financiers to lower the cost of acquiring new customers — a major goal in the fiercely competitive rooftop solar industry. Solar companies are laser focused on slashing costs so that they can deliver on their promise to save customers money on power bills by going solar.

Geostellar will make money by claiming a portion of a system’s total installed price – between 10 and 20 percent, Chief Executive David Levine said.

Geostellar, which was founded in 2010, got its start by selling data to solar companies that showed the solar energy potential of individual rooftops. Its early customers included solar financing companies SunRun, Sungevity and others, according to Levine.

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De quoi la transition énergétique est-elle le nom?

Le mot énergie est communément utilisé comme si son sens n’était pas sujet à discussion. Pourtant, ses multiples acceptions ouvrent à des réflexions et des choix divers. Accolé à transition, il devrait davantage, selon l’ingénieur et architecte Frank Boutté, interroger les possibilités plutôt que résonner comme un prédiction.

Interview et propos de Franck Boutté recueillis par Sylvie Groueff, Urbanisme, Hors Série n° 45, juin 2013

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Solar power begins tovshine as environmental benefits pay off

by DIANA S. POWERS, The New York Times, November 11, 2013

PARIS — Amid polemics over rising electricity prices in Europe and the level of green energy subsidies in various countries, it is easy to lose sight of the fact that the growth in clean-energy generation is a huge success story.

Solar photovoltaic generation, known as PV, like wind power before it, is coming into the mainstream — at great environmental benefit.

Based on comparative life-cycle analyses of power sources, “PV electricity contributes 96 percent to 98 percent less greenhouse gases than electricity generated from 100 percent coal and 92 percent to 96 percent less greenhouse gases than the European electricity mix,” said Carol Olson, a researcher at the Energy Research Center of the Netherlands.

Photovoltaic generation offers several additional environmental advantages, Ms. Olson said in an interview.

“Compared with electricity from coal, PV electricity over its lifetime uses 86 to 89 percent less water, occupies or transforms over 80 percent less land, presents approximately 95 percent lower toxicity to humans, contributes 92 to 97 percent less to acid rain, and 97 to 98 percent less to marine eutrophication,” she said. Eutrophication is the discharge of excess nutrients that causes algal blooms.

Toward the end of last year, installed global photovoltaic generating capacity passed the milestone of 100 gigawatts — enough to meet the energy needs of 30 million households and save more than 53 million tons of carbon dioxide emissions annually, according to a recent report by the European Photovoltaic Industry Association, E.P.I.A., a solar power industry lobby group.

“Right now, today, the world has installed 130 gigawatts of PV, up from 1.4 gigawatts in 2000,” Wolfgang Palz, a former manager of the European Commission’s development program for renewable energies, told a conference organized by France’s National Center for Scientific Research, CNRS, in Paris last month.

Europe alone now has 80 gigawatts of installed photovoltaic capacity, of which 35 gigawatts is in Germany, the European Union leader, providing about 7 percent of the country’s electricity, he said.

Some regions of Germany are even further ahead: “If you buy an Audi today, manufactured in Bavaria, 10 percent of the electricity used to produce it is PV,” Mr. Palz said in an interview.

With large-volume installation, economies of scale have substantially reduced unit costs.

According to a report by the E.P.I.A., the European solar industry’s lobby group, photovoltaic costs have dropped 22 percent with every doubling of production capacity. […]

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A staff of robots can clean and install solar panels

by DIANE CARDWELL, The New York Times, October 14, 2013

Rover, a robot, placing a solar panel in a track at Alion Energy, which is looking to shave labor costs. Photo: Jim Wilon (The New York Times) Source: www.nytimes.com

Rover, a robot, placing a solar panel in a track at Alion Energy, which is looking to shave labor costs.
Photo: Jim Wilon / The New York Times
Source: www.nytimes.com

RICHMOND, Calif. — In a dusty yard under a blistering August sun, Rover was hard at work, lifting 45-pound solar panels off a stack and installing them, one by one, into a concrete track. A few yards away, Rover’s companion, Spot, moved along a row of panels, washing away months of grit, then squeegeeing them dry.

But despite the heat and monotony — an alternative-energy version of lather-rinse-repeat — neither Rover nor Spot broke a sweat or uttered a complaint. They could have kept at it all day.

That is because they are robots, surprisingly low-tech machines that a start-up company called Alion Energy is betting can automate the installation and maintenance of large-scale solar farms.

Working in near secrecy until recently, the company, based in Richmond, Calif., is ready to use its machines in three projects in the next few months in California, Saudi Arabia and China. If all goes well, executives expect that they can help bring the price of solar electricity into line with that of natural gas by cutting the cost of building and maintaining large solar installations.

In recent years, the solar industry has wrung enormous costs from developing farms, largely through reducing the price of solar panels more than 70 percent since 2008. But with prices about as low as manufacturers say they can go, the industry is turning its attention to finding savings in other areas.

“We’ve been in this mode for the past decade in the industry of really just focusing on module costs because they used to be such a big portion of system costs,” said Arno Harris, chief executive of Recurrent Energy, a solar farm developer, and chairman of the board of the Solar Energy Industries Association. Now, Mr. Harris said, “Eliminating the physical plant costs is a major area of focus through eliminating materials and eliminating labor.” […]

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Cool tool for a hot subject

by RONDA KAYSEN, Habitat, June 2012, p. 22-25

A year ago this month, New York City released an interactive map showing every solar power installation in the city. It’s not a robust picture. There are fewer than 500 solar installations citywide.

NYCSolarMap.com could change that. By providing property owners with detailed information about tax incentives, solar potential, and the payback period for an individual rooftop, NYCSolarMap could, if you’ll pardon the pun, lead to sunny skies for solar. In all, two-thirds of the city’s roofs could harness enough of the sun’s energy to make it worth the investment.

The City University of New York (CUNY) is leading local solar efforts and developed the map in partnership with the city and the federal Department of Energy. The site has had about 200,000 hits since it launched and gets about 60 visitors a day. “You’re always going to get the early adopters. However, to trigger mainstream adoption you need to make the case for solar by using data,” says Tria Case, director of sustainability for CUNY and the map’s lead developer. The map cost $660,000 to build and gives users the tools to make an informed decision about their own property. The map, created from photographs taken by airplane using a laser system called Lidar, also tracks solar thermal projects and eventually could become an energy map for the entire city.

Map Barriers

But there are barriers to installing solar. The city permitting process can be cumbersome. And not all buildings are good candidates. A property must have a large roof that’s in good condition. Above all, it needs ample sun. A building with too much shade will not get enough sunlight to generate energy. For that reason, buildings in boroughs other than Manhattan tend to be better candidates.

Then there are the financials. If a building is structured as a 501(c)(3) nonprofit, it won’t benefit from some of the tax incentives. And since most of the financial incentives come in the form of a rebate, a building’s owners need to either have enough cash to pay for the project up front or be able to qualify for a loan. [...]

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NYC Solar Map

Sustainable SUNY