In our January Short-Term Energy Outlook (STEO), we expect that U.S. wholesale power prices will average slightly higher in 2025 in most U.S. regions than last year, except in Texas and in the Northwest. We forecast that the 11 wholesale prices we track in STEO will average $40 per megawatthour (MWh) in 2025 (weighted by demand), up 7% from 2024. We expect the 2025 average U.S. residential electricity price will be 2% higher than the 2024 average, though after accounting for inflation, our forecast for U.S. residential prices remains relatively unchanged from 2024.
Wholesale power prices are an indicator of the cost of generating power and are generally created on an hourly or daily basis in the United States. These prices reflect the operating and fuel costs of the most expensive unit that is needed for fulfilling electricity demand at a given point in time at a defined pricing point location within the power grid, along with any costs associated with transmission congestion into that area. The cost of natural gas is a primary driver of wholesale prices in many regions because the marginal generator is often one fueled by natural gas. We expect that the cost of natural gas delivered to U.S. power generators will average $3.37 per million British thermal units in 2025, which is up 24% from last year’s average but is about the same price as in 2023.
Other regions of the country are likely to see higher wholesale prices over the next year as a result of higher costs for natural gas. We expect the largest increases (about 30%–35%) will occur in the Southwest and California regions. Forecast wholesale prices in the ISO New England region average $55/MWh in 2025, up 16% from 2024. Although we expect higher wholesale prices in 2025, they would still be lower than in 2022, when the composite average wholesale price reached $80/MWh.
Changes in the costs of supplying electricity can take time to affect retail electricity prices because retail rates are reviewed and approved by utility regulators in many areas of the country. We expect U.S. retail electricity prices for residential customers will average 16.8 cents per kilowatthour, which would be 2% more than in 2024. After accounting for inflation, forecast U.S. residential prices in 2025 are relatively unchanged from 2024.