T-14 FUEL MIX MONITOR ● LIVE · EIA FORM 923 PAGE 1 COAL: 42.6% → 15.2% IN 13 YEARS · LARGEST FUEL SHIFT IN U.S. POWER HISTORY GAS: 25.3% → 43.8% · SOLAR: 0% → 5.1% · WIND: 2.9% → 10.5% VERMONT: 97.5% RENEWABLES · IOWA: 62.8% WIND · DELAWARE: 93.1% GAS T-14 FUEL MIX MONITOR ● LIVE · EIA FORM 923 PAGE 1
T-14 · Fuel Mix Monitor

Electricity Generation
Fuel Mix by Utility & State · 2011–2025

● Live 237 Utilities 51 States 2011–2025 EIA Form 923 Page 1

Analysis — The U.S. Power Sector Energy Transition 2011–2025

Coal fell from 42.6% in 2011 to 15.2% in 2024 — a 27 percentage point decline in 13 years. Natural gas absorbed most of that decline, rising from 25.3% to 43.8%. Wind tripled from 2.9% to 10.5%. Solar went from essentially zero to 5.1% in 2024 and 6.6% in 2025. Nuclear has been remarkably stable at 18–20% despite no new plants opening. The utility-level data reveals what national averages hide — some utilities have completed the transition while others remain heavily coal-dependent.

Coal Share Decline
−27pp
42.6% in 2011 → 15.2% in 2024 · largest fuel shift in U.S. power history
Gas Share — 2024
43.8%
Up from 25.3% in 2011 · absorbed most of coal decline
Solar Growth
5.1%
From essentially zero in 2011 · accelerating to 6.6% in 2025
Wind Share — 2024
10.5%
Up from 2.9% in 2011 · tripled in 13 years
National Generation Fuel Mix — 2011–2025 (% of total MWh)
All generators in EIA Form 923 · the U.S. energy transition in actual generation data
Fuel Mix by Utility · EIA Form 923 Page 1
UtilitySt Gas % Coal % Nuclear % Wind % Solar % Hydro % Other RE % Total (TWh)