US Power Emissions Climbed 4% in 2025 as Demand Outran Clean Supply

EIA reports US power-sector CO2 rose 4% last year, driven by a 13% jump in coal generation.

Carbon emissions from the US electric power sector rose 4% in 2025, an increase of 58 million metric tons, according to a US Energy Information Administration report published July 21, 2026. Total energy-related CO2 across the economy rose about 2%, or 115 million metric tons, over 2024. Net power generation grew 3%, surpassing the previous year's record, driven by hot summer weather and rising demand from data centers and manufacturing.

The uncomfortable detail is what filled the gap. Coal-fired generation rose 13%, adding 78 million metric tons of CO2 on its own. Natural gas generation fell 4%, trimming 23 million tons, and clean sources grew, with solar up 34% and wind up 3%. But the clean additions were not enough to cover the surge in total demand, so coal came back to make up the difference.

This is a setback for the decarbonization trend that had defined the power sector for years. Abundance depends not just on more energy but on energy that gets cheaper and cleaner over time. When demand growth outpaces clean supply, the marginal electron comes from the dirtiest available source, and both the climate cost and the long-run price exposure rise.

The figures are EIA's. The core question they raise is whether clean capacity additions can accelerate faster than data center and industrial load. If they cannot, coal's rebound may not be a one-year anomaly. Watch 2026 generation mix data for whether solar and storage growth begins to close the gap.

Source: Utility Dive