I don't think the units are correct here. My observation has been that even reputable news sources seem to go all wonky with energy units. I believe the appro

I don't think the units are correct here. My observation has been that even reputable news sources seem to go all wonky with energy units. I believe the appropriate units for consideration would be GWh = gigawatt-hours. This article, https://www.environmentalleader.com/2021/01/worlds-largest-utility-scale-battery-energy-storage-system-now-online/ https://www.environmentalleader.com/2021/01/worlds-largest-u..., suggests that the largest battery storage system is 1,200 MWh or 1.2GWh of storage (at a cost of $400 million) For comparison, all generation capacity in California is 272,576 gigawatt-hours https://www.energy.ca.gov/data-reports/energy-almanac/california-electricity-data/2020-total-system-electric-generation https://www.energy.ca.gov/data-reports/energy-almanac/califo...