Electricity production in the U.S. is only about 2% of GDP, but basically every economic activity relies on electricity to function. Having very much of the el

Electricity production in the U.S. is only about 2% of GDP, but basically every economic activity relies on electricity to function. Having very much of the electric supply be truly intermittent would create enormous costs elsewhere in the economy. If you're going to power the U.S. on renewables, you're going to need a lot of storage to get the needed reliability, so if you're comparing costs, you need to compare an equivalent end product.