National Public Radio: On some sunny, spring days, California has more electricity than it can use, like from this solar farm in Fresno. Terry O'Rourke/NREL hide caption
toggle caption Terry O'Rourke/NREL
On some sunny, spring days, California has more electricity than it can use, like from this solar farm in Fresno.
Terry O'Rourke/NREL
In California, there is so much solar energy that grid operators have to switch off solar farms. One solution of dealing with the additional power generated is to share the...