cleanpower
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EVs are greener than ever thanks to renewable energy
Some wags will always try to claim that EVs are just as dirty as regular cars, because electricity is generated in coal-fired power stations. Except, that's not really true anymore, which is why the Union of Concerned Scientists has updated its data on how environmentally friendly electric cars are. The results won't shock you, but an EV is now about as efficient as a gas-powered car that can make 73 miles per gallon.
The world's largest solar power plant is now up and running
Solar power just hit one of its biggest milestones, in more ways than one. First Solar recently finished building Topaz, a 550-megawatt plant that represents the largest active solar farm on the planet. And we do mean large -- the installation's nine million solar panels cover 9.5 square miles of California's Carrizo Plain. It's an impressive feat that should power 160,000 homes on Pacific Gas and Electric's grid, although it won't be alone at the top for very long. First Solar's Desert Sunlight farm will match that capacity once its last solar cells go online, and SunPower's 579MW Solar Star is due to go live in 2015. Not that there's a problem with that, of course. These solar plants have been a long time coming, and they promise eco-friendly energy for hundreds of thousands of Golden State residents. [Image credit: Center for Land Use Interpretation]
Reported new DARPA chief brings true geek, dash of green tech controversy
Running DARPA has always demanded a certain amount of tech-savviness -- it created what ultimately became the internet, after all -- but it may get an extra coat of green paint with a new leader. The agency has reportedly taken on Arati Prabhakar as its new director, and Wired notes that she has a lot more than just the agency itself under her belt. Along with going so far as to found DARPA's Microelectronics Technology Office, she ran the National Institute of Standards and Technology (NIST) and eventually signed on with Interval Research the venture capital firm that backed the solar power company Solyndra as well as numerous other green tech projects. That last decision has drawn a fair share of flak: Solyndra got about $500 million of public funding and still went under. With that in mind, an anonymous senior military staffer claims that Prabhakar wasn't involved in the questionable government loan and went through "extensive vetting," so it's doubtful that the funding will cast the same shadow over her DARPA technology investments as it did for the outgoing director, Regina Dugan. Even so, there will no doubt be a close watch over Prabhakar if the appointment is made public, both for those who want to keep her honest as well as for the potentially huge amount of insight into clean energy and general technology that she can wield. [Image credit: SRI]