By Roy L Hales
As their name suggests, San Diego Gas & Electric’s #1 energy source is natural gas. They obtained 54% of their electricity from gas burning plants in 2015. Yet they also operate in a state which intends to produce 33% of its’ electricity from renewables by 2020. SDG&E has already exceeded that target, using renewables like solar, wind and hydro to provide 35% of their supply. Now, in compliance with California Public Utilities Commission (CPUC) guidelines, SDG&E unveiled the World’s largest lithium ion energy storage facility.