Google's Oklahoma wind farm will be built this year.Photo: Marcin WicharyIt's getting a bit hard to keep up with all of Google's green investments these days -- $168 million put into a big solar power plant project one week; $100 million for the world's largest wind farm the next. But this week's big money move -- the third so far this month -- is different. It also involves wind but is a power purchase agreement (known as a PPA in the utility trade) rather than a direct investment in a specific project. The deal with wind developer NextEra Energy Resources …
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Todd Woody is an environmental and technology journalist based in California who writes for The New York Times, Quartz, and other publications.
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