A total reliance on renewable energy would require a major expansion of storage capacity for those times when the wind dies down<br />and the sun fades, said Sadrul Ula, managing director of U. C.<br />Riverside’s Winston Chung Global Energy Center.<br />Last week, the State Senate leader, Kevin de León, quietly introduced legislation<br />that would require California to get all of its electricity from solar, wind and other renewable sources by 2045.<br />“But not implausible.”<br />“Last year, Germany was able to briefly meet 95 percent of the country’s electricity demand with renewables,” Mr. Mormann said.<br />Cost is one, said Ethan Elkind, director of the climate program at U. C.<br />Berkeley’s Center for Law, Energy and the Environment.<br />It’s “ambitious,” said Felix Mormann, a faculty fellow at Stanford’s Steyer–Taylor Center for Energy Policy and Finance.
