New Hampshire lags behind the rest of New England when it comes to solar electricity production. But with the arrival of California-based SolarCity, there’s reason to believe New Hampshire could catch up. For more on solar power in the Granite State, we turn to David Brooks. He’s the author of the weekly Granite Geek science column for the Nashua Telegraph and he writes at Granite Geek.org as well. He spoke with NHPR's Peter Biello.