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PTC Courtesy of World Resources Institute

When Congress let the promotion tax credit (PTC) expire in the past, the number of wind capacity installations dropped 73 to 93 percent in the following years.

PTC Courtesy of World Resources Institute

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Posted on December 31, 2012
When Congress let the promotion tax credit (PTC) expire in the past, the number of wind capacity installations dropped 73 to 93 percent in the following years.

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