Despite a slight decrease from the previous year, San Diego Gas & Electric (SDG&E) has maintained its level of renewable energy use at 20 percent of sales. In terms of solar energy, Poway installed the most solar per 100 residents in San Diego County at 4.86 kilowatts, which includes both residential and non-residential installations. Imperial Beach had the highest non-residential solar installed at 1.62 kilowatts per 100 residents.