The US power grid has seen a significant growth in battery capacity, with over 20 gigawatts installed in the past four years. This is equivalent to the output of 20 nuclear reactors and has helped maintain renewable energy during weather conditions that interfere with wind and solar production. California and Texas have been leading the way in this growth, with massive batteries helping manage clean yet intermittent solar and wind energy.

Source: https://www.theguardian.com/environment/2024/oct/24/power-grid-battery-capacity-growth