Interesting https://www.wsj.com/articles/battery-storage-soars-on-u-s-electric-grid-11640082783?
The U.S., which had less than a gigawatt of large battery installations in 2020—roughly enough to power 350,000 homes for a handful of hours—is on pace to add six gigawatts this year and another nine gigawatts in 2022, according to S&P Global Market Intelligence.
Plummeting costs for lithium-ion batteries. Lithium-ion battery packs, which cost more than $1,200 per kilowatt-hour in 2010, have fallen to around $132 this year, according to data from BloombergNEF.
California drives battery market’s expansion. A state law passed in 2018 requires the state to decarbonize its power grid by 2045. At least eight other states so far have storage mandates or targets, including New York, Virginia and Nevada, according to the U.S. Energy Storage Association. Goldman Sachs expects the U.S. market for stationary batteries to grow from about $1 billion in 2020 to $13 billion to $14 billion by 2030.