U.S. Electricity Demand Could Grow Sixfold After Decades of Flat Use
AI data centers lit the fuse, but factories, chip plants, export terminals, and homes are adding fuel.
In Good Company with Nicolai Tangen · NextEra Energy CEO: Powering AI, Nuclear's Comeback and a Historic Utility MergerFor decades, selling electricity in America was a steady and unexciting business. Homes and businesses used roughly the same amount of power year after year.
That flat line has snapped. John Ketchum, the chief executive of NextEra Energy, one of America's largest power companies, says U.S. demand is now projected "to increase sixfold over the next 20 years," to the mid-2040s.
The turn became clear "about two or three years ago," Ketchum says, then accelerated sharply in the last 24 months. Customers were adopting artificial intelligence quickly, and huge investment was pouring in from giant cloud companies and data center operators.
Data centers, buildings packed with computers that run AI and internet services, are large customers that need power around the clock, day and night.
But AI is only the most visible driver. Ketchum says growth is also coming from factories moving production back to the United States, semiconductor plants that make computer chips, and export terminals that supercool natural gas into liquid for shipping.
Transportation and homes are adding to the load as well. Ketchum says "Homes are using more electricity than they have in the past."
That mix explains why the forecast changed so fast. Ketchum says his company was still expecting stagnant demand two or three years ago, and almost overnight the outlook became a sixfold increase from every corner of the economy.
Questions people ask
Why does AI need so much electricity?
A data center is a large warehouse filled with computers that store data and run online services, from email to AI. Those computers run constantly and generate a lot of heat, so the building also needs power for cooling, which is why one facility can use as much electricity as a small city.
What does broader electrification mean?
Electrification means doing with electricity jobs that used to run on oil or gas. Common examples are electric cars instead of gasoline cars, heat pumps instead of gas furnaces, and electric factory equipment. Each switch adds new load to the power grid.
How could demand rise so fast after staying flat for decades?
Until recently, efficiency gains from better appliances and lighting largely offset economic growth, keeping total use flat. Demand can now rise even with efficient devices because there are simply many more electric devices, vehicles, factories, and data centers drawing power at once.