WASHINGTON (AP) — Federal energy regulators on Monday approved a long-awaited rule to make it easier to transmit renewable energy such as wind and solar power to the electric grid — a key part of President Joe Biden’s goal to eliminate carbon emissions economy-wide by 2050.

The rule, under development for two years, is aimed at boosting the nation’s aging power grid to meet surging demand fueled by huge data centers, electrification of vehicles and buildings, artificial intelligence and other uses.

The increased demand comes as coal-fired power plants continue to be retired amid competition from natural gas, and other energy sources face increasingly strict federal pollution rules, setting up what experts say could be a crisis for electric reliability.

The grid is also being tested by more frequent service disruptions during extreme weather events driven by climate change.