Utilities are in danger of being FedExed, Chu said, “like the Post Office got FedExed,” as rooftop solar modules drop in price.
“The cost of modules has plummeted. In California where I live, that means for $10,000 you can generate a lot of electricity. The cost of batteries is plummeting, so that in five maybe 10 years at the outside, a $10,000 or $12,000 system will allow me to go, on average, 80 percent off grid.
