willem post says:
Environmental sciences professor, Jacobsen, at Stamford University, claimed in 2015, almost all US energy, FOR ALL USES, could be supplied by wind and solar.
The below calculation shows the cost of the battery systems, if the US would have a major wind/solar lull covering 25% of land area.
BTW, California had a major, widespread, HEAT WAVE and the result was multiple days with rolling BLACK-OUTS, i.e., NO AC.
Reality Check Regarding Utility-Scale Battery Systems.
According to weather data, the US has multi-day, wind/solar lulls covering at least 25% of the land area, which occur at random times throughout the year.