India Achieves Rare Drop in Power-Sector CO2 Emissions

India’s carbon dioxide emissions from the power sector fell by 1% year-on-year in the first half of 2025, marking only the second decline in nearly five decades. The drop was driven by record clean-energy additions and unusually mild weather, according to new analysis by the Centre for Research on Energy and Clean Air (CREA) for Carbon Brief.

India added 25.1 GW of non-fossil capacity between January and June, a 69% increase from the previous record, enough to generate nearly 50 TWh annually. Slower electricity demand growth accounted for 65% of the fall in fossil generation, while clean energy expansion and a surge in hydropower made up the rest.

Despite the decline, emissions from steel and cement rose sharply due to infrastructure spending. CREA noted that if clean-energy growth continues and demand remains on track, India’s power-sector emissions could peak before 2030 - a major milestone for a sector that has historically driven half of the nation’s emissions growth.

A year-on-year decline in power-sector CO2 - only the second in nearly five decades - is a genuine inflection point for a sector that has historically driven half of India's emissions growth. The combination of 25 GW clean-capacity additions in a single half-year, mild weather reducing electricity demand, and slower demand-growth all contributed, but the underlying trajectory is what matters: clean capacity is scaling fast enough to meaningfully offset marginal fossil generation.

The CREA analysis pointing to a potential power-sector peak before 2030 is significant. Peaking is the precondition for absolute reductions; achieving it while overall economy still grows requires the clean-capacity build to keep pace with electricity demand. India appears to be within reach of that milestone, provided current trajectories hold and grid-integration challenges (see the parallel curtailment story) get resolved.

For utilities, industrial energy consumers, renewable developers and financial-sector clients, Cognitud's climate action, energy transition and responsible investment teams help clients position for the power-sector-peak scenario - structuring transition plans, evaluating decarbonisation trajectories across scenarios, and preparing TCFD- and ISSB-aligned disclosures that reflect the strategic implications of India's changing electricity-emissions dynamics.