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Drax power station is the UK's largest carbon emitter, with 2024 emissions of 13.3 million tonnes of CO2e, a 16% increase over the previous year. Despite the complete phase-out of coal power in September 2024, biomass and gas plants continue to dominate the top emitter rankings. Drax is projected to remain the largest emitter through 2030, even with planned subsidy cuts starting in 2027. Other significant emitters include Port Talbot Steelworks and Pembroke gas power station, while carbon capture deployment across the UK's largest industrial sites has seen limited progress.

The report identifies Drax power station as the UK's largest single CO2 emitter in 2023, emitting 11.5 million tonnes of CO2. It highlights that power stations, steelworks, and refineries are the primary sources of emissions, with the power sector accounting for 12% of total UK emissions. The document criticizes the use of biomass for power generation, arguing that the assumption of carbon neutrality is flawed and that the sector's reliance on imports creates energy security risks. It suggests that energy security can be achieved through the rapid deployment of cheaper renewables, energy storage, and grid upgrades rather than through subsidies for large emitters.