Intensive research around the world has focused on improving the performance of solar photovoltaic cells and bringing down their cost. But very little attention has been paid to the best ways of arranging those cells, which are typically placed flat on a rooftop or other surface, or sometimes attached to motorized structures that keep the […] … learn more→

The California Public Utilities Commission (CPUC) released a report this month on the costs of California’s progress in generating more electricity from renewable power, and there was good news. Prices of new contract bids submitted to utilities last year were about 30 percent lower than in 2009, according to the report, signaling a more competitive […] … learn more→