Solar energy could exceed California's current energy demand three to five times using equipment built on and around the state's existing infrastructure, claim researchers at the Carnegie Institution for Science at in Stanford, Calif. They detailed their findings online March 16 in the journal Nature Climate Change.
With a total area of more than 400,000 square kilometers, California has more land than 189 countries, including Germany. A little more than 8 percent of this land has already been developed by humans. The Stanford scientists explored how much opportunity this developed land presented for power generation via photovoltaic solar power and concentrating solar power.
Photovoltaics convert light directly into electricity, whereas concentrating solar power typically uses concentrated sunlight to heat fluid that drives a steam turbine to generate electricity.