Coal has been the main source of electricity generation worldwide for the last three decades. In 2025, global coal power generation stood at over terawatt-hours. Overall, coal, natural gas, and other fossil fuels accounted for approximately percent of the global electricity production that year.
Renewable energy sources for electricity generation
The production of renewable energy has been increasing steadily over the past decades, driven by growing investments and policy support worldwide. However, the contribution of renewables to the world’s electric power mix remains small when compared to fossil fuel sources.