By Cassandra Sweet and Rebecca Smith
From backyard tinkerers to big corporations, inventors have been struggling to find a way to store solar, wind and other renewable energy so it can furnish electricity when the sun doesn’t shine or the wind doesn’t blow.
Now California is offering businesses a big incentive for success—contracts that the utility industry estimates could total as much as $3 billion for successful, large-scale electricity-storage systems.
To read the full article, visit The Wall Street Journal.