December 13, 2010 12:35 AM

Rooftop solar panels a renewable investment for businesses

For Jim Judd, installing rooftop solar panels at his San Miguel winery, J&J Cellars, was strictly a matter of mathematics. He had 144 panels installed on the roof of the barrel storage room Aug. 1. They will provide enough energy for both the tasting room and the production of the wine and save him an estimated $25,000 a year on electricity costs.

Related content