ARPA-E was modeled after a successful defense research agency called DARPA, which helped create the foundation of the internet. So can the government's energy innovation agency do something equally groundbreaking for clean energy?

This week, we'll talk with ARPA-E's director, Dr. Cheryl Martin, who describes how she thinks about developing groundbreaking energy technologies.

We'll also debate the solar industry's aggressive tactics used to hit back against utilities that are attempting to limit PV on the grid.

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

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