Power grid hit by new demands
Rapid innovation in AI, growth in crypto mining raise fears of shortages
Vast swaths of the United States are at risk of running short of power as electricity-hungry data centers and clean-technology factories proliferate around the country, leaving utilities and regulators grasping for credible plans to expand the nation’s creaking power grid.
In Georgia, demand for industrial power is surging to record highs, with the projection of electricity use for the next decade now 17 times what it was only recently. Arizona Public Service, the largest utility in that state, is also struggling to keep up, projecting it will be out of capacity before the end of the decade absent major upgrades.
Northern Virginia needs the equivalent of several large nuclear power plants to serve all the new data centers planned and under construction. Texas, where electricity shortages are already routine on hot summer days, faces the same dilemma.
The soaring demand is touching off a scramble to try to squeeze more juice out of an aging power grid while pushing commercial customers to go to extraordinary lengths to lock down energy sources, such as building their own power plants.
“When you look at the numbers, it is staggering,” said Jason Shaw, chairman of the Georgia Public Service Commission, which regulates electricity. “It makes you scratch your head and wonder how we ended up in this situation. How were the projections that far off ? This has created a challenge like we have never seen before.”
A major factor behind the skyrocketing demand is the rapid innovation in artificial intelligence, which is driving the construction of large warehouses of computing infrastructure that require exponentially more power than traditional data centers. AI is also part of a huge scale-up of cloud computing. Tech firms like Amazon, Apple, Google, Meta and Microsoft are scouring the nation for sites for new data centers, and many lesser-known firms are also on the hunt.
The proliferation of crypto-mining, in which currencies like bitcoin are transacted and minted, is also driving data center growth. It is all putting new pressures on an overtaxed grid — the network of transmission lines and power stations that move electricity around the country. Bottlenecks are mounting, leaving both new generators of energy, particularly clean energy, and large consumers facing growing wait times for hookups.
The situation is sparking battles across the nation over who will pay for new power supplies, with regulators worrying residential ratepayers could be stuck with the bill for costly upgrades. It also threatens to stifle the transition to cleaner energy, as utility executives lobby to delay the retirement of fossil fuel plants and bring more online. The power crunch imperils their ability to supply the energy that will be needed to charge the millions of electric cars and household appliances required to meet state and federal climate goals.
The nation’s 2,700 data centers sapped more than 4% of the country’s total electricity in 2022, according to the International Energy Agency. Its projections show by 2026, they will consume 6%. Industry forecasts show the centers eating up a larger share of U.S. electricity in the years that follow, as demand from residential and smaller commercial facilities stays relatively flat thanks to steadily increasing efficiencies in appliances and heating and cooling systems.
Data center operators are clamoring to hook up to regional electricity grids at the same time the Biden administration’s industrial policy is luring companies to build factories in the United States at a pace not seen in decades. Tensions over who gets power and how it gets to them are only likely to intensify.
In Texas, an increase in data centers for crypto mining is touching off a debate over whether they are a costly drain on an overtaxed grid. An analysis by the consulting firm Wood Mackenzie found the energy needed by crypto operations aiming to link to the grid would equal a quarter of the electricity used in the state at peak demand. Unlike data centers operated by big tech companies such as Google and Meta, crypto miners generally don’t build renewable-energy projects with the aim of supplying enough zero-emissions energy to the grid to cover their operations.
The result, said Ben Hertz-Shargel, who authored the Wood Mackenzie analysis, is crypto’s drain on the grid threatens to inhibit the ability of Texas to power other energy-hungry operations that could drive innovation and economic growth, such as factories that produce zero-emissions green hydrogen fuel or industrial charging depots that enable electrification of truck and bus fleets.