In this new article from Popular Science, Dawn Lippert, CEO of Elemental Excelerator, seeks to answer the question, “Is it smart–or crazy stupid–to rely solely on wind, solar and hydro?” She notes that in 2009, Ed Chiao, a UCLA engineering grad, and Seth Sanders, a UC Berkeley professor who had been researching flywheels for a decade, founded Amber Kinetics.

“In theory,” she says, ‘flywheels could be scaled up to release hundreds of megawatts for four hours, enough for peak evening demand.” Read more.