The federal Investment Tax Credit has enabled dramatic growth in the U.S. solar industry. But its looming expiration in 2017 is causing some within the solar business to ask: will it still be needed to continue that growth?

The industry’s national lobbying group unequivocally supports an extension. President Obama supports a permanent credit. But some believe installers will still be able to compete in many markets, even when the credit goes to 10 percent for commercial and third-party-owned systems and zero for everything else.

In this week’s episode, Barry Cinnamon of Cinnamon Solar joins the Energy Gang to debate the necessity of the federal tax credit. He argues that it will destroy smaller installation companies like his, and talks about how to prepare for the change.

Later in the show, we’ll explain why Germany’s grid didn’t implode during last week’s solar eclipse. Then, we’ll look at Senate Majority Leader Mitch McConnell’s bid to stop EPA carbon regulations by lobbying state regulators and relying on a famous constitutional law professor.

This podcast is sponsored by Kaco New Energy, a leading manufacturer of solar PV inverters for every size and module type.

The Energy Gang is produced by The show features weekly discussions between energy futurist Jigar Shah, energy policy expert Katherine Hamilton and Greentech Media Editor Stephen Lacey.