Slashdot Mirror
Domain: wri.org
Stories and comments across the archive that link to wri.org.
Stories · 3
-
Target Passes Walmart As Top US Corporate Installer of Solar Power (electrek.co)
An anonymous reader quotes a report from Electrek: Target is the top corporate installer of solar power in the USA with 147MW installed on 300 stores. Walmart is close behind with 140MW, while Ikea has installed solar on 90% of its retail locations. The Solar Energy Institute of America (SEIA) report shows over 1,000MW of solar installed in almost 2,000 unique installations by the largest corporate entities in the country. Additionally these groups have more than doubled their installation volume year on year, with 2015 seeing a total of 130MW, while 2016 is projected to be closer to 280MW. Big box retail locations offer some of the best potential spaces for solar power to be installed -- on top of square, flat structures and in previously built parking lots. The average size of an installation by a company in this group is about 500kW -- 75X the size of an average residential solar installation. The RE100 organization has signed up 81 global corporations (many on the SEIA list) who have pledged 100% renewable energy. "We're incredibly proud of the progress we've made in improving building efficiencies and reducing environmental impact. Our commitment to installing solar panels on 500 stores and distribution centers by 2020 is evidence of that progress" -- said John Leisen, vice president of property management at Target. The geographic breakdown of solar installations is based upon three main drivers -- good sunlight, expensive electricity and state level renewable mandates, with Southern California having all three. The northeast USA, with its expensive electricity and aggressive clean energy push, has been on par with California (50% of total solar) for commercial installations. A report put together by the World Wildlife Fund (WWF) and the World Resources Institute (WRI) breaks down the various state level laws that support corporations going green -- and, without surprise, it becomes clear that the legal support of renewable energy is a definite driver. -
The World Lost an Oklahoma-Sized Area of Forest In 2013, Satellite Data Show
merbs writes Oklahoma spans an area in the American South that stretches across almost 70,000 square miles. That's almost exactly the same area of global forest cover that was lost in a single year. High resolution maps from Global Forest Watch, tapping new data from a partnership between the University of Maryland and Google, show that 18 million hectares (69,500 square miles) of tree cover were lost from wildfires, deforestation, and development the year before last. The maps were created by synthesizing 400,000 satellite images collected by NASA's Landsat mission. -
New Study Says Governments Should Ditch Reliance On Biofuels
HughPickens.com writes The NYT reports on a new study from a prominent environmental think tank that concludes turning plant matter into liquid fuel or electricity is so inefficient that the approach is unlikely ever to supply a substantial fraction of global energy demand. They add that continuing to pursue this strategy is likely to use up vast tracts of fertile land that could be devoted to helping feed the world's growing population. "I would say that many of the claims for biofuels have been dramatically exaggerated," says Andrew Steer, president of the World Resources Institute, a global research organization based in Washington that is publishing the report. "There are other, more effective routes to get to a low-carbon world." The report follows several years of rising concern among scientists about biofuel policies in the United States and Europe, and is the strongest call yet by the World Resources Institute, known for nonpartisan analysis of environmental issues, to urge governments to reconsider those policies.
Timothy D. Searchinger says recent science has challenged some of the assumptions underpinning many of the pro-biofuel policies that have often failed to consider the opportunity cost of using land to produce plants for biofuel. According to Searchinger, if forests or grasses were grown instead of biofuels, that would pull carbon dioxide out of the air, storing it in tree trunks and soils and offsetting emissions more effectively than biofuels would do. What is more, as costs for wind and solar power have plummeted over the past decade, and the new report points out that for a given amount of land, solar panels are at least 50 times more efficient than biofuels at capturing the energy of sunlight in a useful form. "It's true that our first-generation biofuels have not lived up to their promise," says Jason Hill said. "We've found they do not offer the environmental benefits they were purported to have, and they have a substantial negative impact on the food system."