How fast is US electricity demand growing as data centers expand?
Core argument: US electricity demand is forecast to grow about 2% annually over 2025–2027, an upward revision from the 1% growth projected for 2025–2026 in January 2024, putting 2026 demand roughly 100 TWh higher than previously forecast.
We expect US electricity demand to grow at an average annual rate of about 2% over the period 2025-2027. This is an upwards revision from our forecast in January 2024, which had projected 1% growth for the 2025-2026 period. With this revision, forecast US electricity demand in 2026 is now around 100 TWh higher than in our previous forecast a year ago. A recent study commissioned by the U.S. Department of Energy highlights the strong growth in electricity consumption by data centres, which rose from about 60 TWh in 2014 to 176 TWh in 2023, and constituted more than 4% of the country's total electricity use. Their scenarios indicate this consumption could rise by an additional 150 TWh to 400 TWh by 2028, reaching about 325 TWh to 580 TWh, and accounting for 6.7% to 12% of total US electricity demand. The growth trend is supported by the record pace of new data centre announcements. In the first half of 2024 alone, announced data centre projects were associated with nearly 24 GW of power capacity needs – triple the amount stated during the same period in 2023.

