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In January 2026, wind energy dominated Britain's electricity generation at 37%, up from 27% in January 2025. Gas generated 31%, a decrease from 38% last year, while electricity imports contributed 11%.

Nuclear power dropped to 10%, and biomass generation rose to 7%. Zero-carbon sources accounted for 61% of total generation, significantly improving from 43% in January 2025. Carbon intensity fell to 144 gCO₂/kWh, down 14% year-on-year. This month marked a strong start for the year, with wind reclaiming its position as the leading source, although gas remained crucial for winter demand and nuclear output declined.