Harvesting the Wind
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Homegrown.
The equipment that’s powering America’s wind energy boom is increasingly being made right at home.
In 2007, just 25 percent of turbine components used in new wind farms in the U.S. were produced domestically. By last year, that figure had risen to 72 percent, according to a new report from the U.S. Department of Energy. And exports of such equipment rose to $388 million last year, up from $16 million in 2007.
This happened even as the U.S. was installing a whole lot of turbines. More than 13.1 gigawatts of new wind power capacity was added to the U.S. grid in 2012, representing $25 billion of investment. That made wind the nation’s fastest-growing electricity source last year, faster even than natural gas–fueled power.
Unfortunately, there were job losses in the sector last year, with the number of wind industry manufacturing jobs falling to 25,500 from 30,000 the year before. That’s because there was a lull and some factory closures after a mad scramble to fulfill orders placed before a federal tax credit expired. (It was renewed for this year, but its future is still up in the air.)
The better news is that the number of workers both indirectly and directly employed by the sector grew to 80,700 in 2012, up from 75,000 the year before.
And as the wind energy sector has grown, so too has the diversity of companies that comprise it, as shown in this chart from the DOE report:
Energy DepartmentClick to embiggen.
John Upton is a science fan and green news boffin who tweets, posts articles to Facebook, and blogs about ecology. He welcomes reader questions, tips, and incoherent rants: johnupton@gmail.com.
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More of America’s wind turbines are actually being built in America
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Mother Jones
Climate Central has some bad news for all of us eco-sensitive folks: figuring out the best car to drive is harder than you think. For starters, you need to take into account which state you live in. If you live in, say, Washington or Vermont, where most of your electricity comes from hydropower or nuclear, an electric car is pretty carbon friendly. If you live in Kentucky, where your power mostly comes from coal, an electric car isn’t such a good choice.
But there’s more. You also need to account for the carbon emissions it takes to build the car in the first place. And since battery manufacturing is pretty carbon intensive, a car with a big battery starts out with a big carbon deficit to make up. Their conclusion:
In 26 states, a plug-in hybrid is the most climate-friendly option (narrowly outperforming all-electrics in 11 states, assuming 50:50 split between between driving on gas and electric for the plug-in hybrids), and in the other 24 states, a gas-powered car the best. All-electrics and plug-in hybrids are best in states with green electrical grids with substantial amounts of hydro, nuclear and wind power that produce essentially no carbon emissions. Conventional hybrids are best in states where electricity comes primarily from coal and natural gas.
The table on the right shows Climate Central’s total lifecycle ranking of various cars based on 50,000 miles of driving and U.S. average electrical emissions. All-electric cars do better if you live in a state with lots of hydropower, and they also do better if you drive more, since that provides more time to make up the carbon deficit from manufacturing the battery.
You can read the whole report for more details, including rankings for each state. In Vermont, the all-electric Honda Fit comes in first. In California, a plug-in Prius is the top choice. In Kentucky, a regular gasoline-powered hybrid Prius is number one. The lovely Tesla S, sadly, does poorly pretty much everywhere.
Link to original:
Electric Cars Are Great in Vermont, Not So Great in Kentucky