From www.eere.energy.gov:
PowerLight Corporation continues to benefit from California's favorable solar power incentives: the company recently installed a 457-kilowatt solar power system at the St. Francis Winery & Vineyards near Santa Rosa. PowerLight also upgraded the lighting in the winemaking and refrigerated barrel storage areas to reduce the winery's electrical load for lighting by 48 percent. Completed in June, the solar power system was dedicated on August 10th.