My article The Dramatic Arc of the PTC was just published in  North American WindPower and discusses the history of the production tax credit (PTC) from its original enactment to the phaseout.  Here’s the text of the article:

The production tax credit (PTC) is the force that spurred the U.S. wind industry from an immaterial segment of power generation in the early 1990s to providing the fastest-growing job in America – wind turbine technician. At the end of 2016, the total wind capacity in the U.S. was more than 82 GW. Now, like the finale of a Fourth of July fireworks show, the PTC has several more exciting bursts to go and then will, in theory, peter out.