The US installed a record 26.5GW of wind, solar and battery storage in 2020 — but almost 20 times as much proposed capacity was seeking grid connection, highlighting a major challenge President Joe Biden faces to achieve a carbon-free electric network by 2035, according to the American Clean Power Association (ACPA).

Wind power led the way, with 16.8GW installed, followed by solar (8.9GW), natural gas (7.3GW) and battery storage (760MW).

This brought cumulative power capacity for wind, solar and battery storage to 170.4GW