The epic scale of US power sector decarbonisation as tallied by the nation's biggest renewable energy developer was laid bare in new forecasts from NextEra Energy.

NextEra reckons by 2050 the US green power push could create a $1.7trn investment opportunity comprising 3.55 terawatts (TW) of new battery storage, hydrogen, solar, and wind capacity.

In that scenario, solar would comprise the most additions (about 45%), then battery storage, wind, and hydrogen.