Stanford researcher suggests storing solar energy underground for a cloudy day (Stanford University)

(Source: Stanford University) Stanford Report, November 23, 2015 A common criticism of a total transition to wind, water and solar power is that the U.S. electrical grid can't affordably store enough standby electricity to keep the system stable. Stanford researcher Mark Z. Jacobson proposes an underground solution to that problem. By Dan Stober genuisksy/Shutterstock A new study shows that wind, water and solar generators can theoretically result in a reliable, affordable national grid when the generators are combined with inexpensive storage. Over the last few years, Mark Jacobson, a Stanford professor of civil and environmental engineering, and his colleague, Mark Delucchi of the...