Renewable generation in July cuts coal's share in power mix to 1-year low
India's renewable power generation rose to about 20% of total electricity generation in July, reaching 36.25 billion kilowatt-hours (kWh) — a rise of roughly 30% over the same month a year earlier.
Coal's share of overall electricity generation fell to 65.7% in July, down from 69% in June, marking a one-year low.
Total electricity generation in the country rose about 10.4% year-on-year to 181.79 billion kWh in July.
Combined solar and wind capacity crossed the 100-gigawatt (GW) mark for the first time, with renewable sources meeting a record 42.8% share of electricity supply on a single day in mid-July.
India's NDC Target on Non-Fossil Fuel Capacity
India's updated Nationally Determined Contribution (NDC), submitted under the Paris Agreement in August 2022, commits to sourcing 50% of cumulative installed electric power capacity from non-fossil fuel sources (renewables, large hydro, and nuclear) by 2030 — distinct from the separate 500 GW non-fossil capacity announcement made at COP26 (2021). India crossed the 50% non-fossil installed-capacity milestone in mid-2025, roughly five years ahead of the 2030 deadline.
Key Details
- As of mid-2025, non-fossil sources made up just over 50% of India's ~485 GW total installed capacity.
- This is a capacity (installed MW) target, not a generation target — coal still supplies the majority of actual electricity because thermal plants run at much higher capacity utilisation (load factor) than solar and wind.
- The gap between the achieved capacity milestone and the still-lower generation share (coal at 65.7% of July's actual output) is a frequently tested Prelims distinction.
July's data shows renewable generation rising steadily even though the capacity target was met earlier, illustrating how intermittency keeps the generation share below the capacity share.
Merit Order Dispatch and "Must-Run" Status for Renewables
Grid operators in India are required to dispatch electricity in "merit order" — cheapest source first — but renewable energy plants that have signed a power sale agreement are granted "must-run" status under the Electricity (Promotion of Generation of Electricity from Must-Run Power Plant) Rules, 2021, notified by the Ministry of Power. This means solar and wind output must be accepted by the grid ahead of conventional sources whenever available, and cannot be curtailed except for genuine technical or grid-security constraints.
Key Details
- The legal basis for regulating dispatch and renewable procurement traces to the Electricity Act, 2003.
- Must-run status is what allows a single day's renewable share to spike (42.8% in mid-July) even when the monthly average is lower, since dispatch priority applies whenever weather conditions are favourable.
- Renewable Purchase Obligations (RPOs), fixed under Section 86(1)(e) of the Electricity Act, 2003, require distribution licensees and other obligated entities to source a rising minimum share of consumption from renewables — trajectories have been notified through 2029-30.
Rising RPO trajectories and mandatory must-run dispatch are structural reasons renewable generation keeps climbing even without a corresponding fall in coal capacity.
Financing and Domestic Manufacturing Support for Renewable Capacity
Two policy instruments underpin the renewable capacity growth behind July's numbers: the Production Linked Incentive (PLI) Scheme for High-Efficiency Solar PV Modules (approved by the Union Cabinet in April 2021) and Sovereign Green Bonds, issued by the Reserve Bank of India on behalf of the government since January 2023 to raise debt financing for renewable energy and clean transport projects.
Key Details
- The PLI scheme supports domestic solar module, cell, and ingot-wafer manufacturing; only modules from the Approved List of Models and Manufacturers (ALMM) qualify for government-subsidised solar installations, including PM Surya Ghar and PM-KUSUM.
- India's first Sovereign Green Bond issuance (January 2023) raised ₹8,000 crore (~$1 billion); the enabling Sovereign Green Bond Framework was released in November 2022.
- These instruments target the supply side (domestic manufacturing) and financing side (capital raising) of renewable capacity addition, complementing demand-side mechanisms like RPOs.
The steady expansion of installed solar and wind capacity that pushed coal's generation share to a one-year low is underpinned by this manufacturing-and-financing policy architecture, not by capacity growth alone.
- Renewable generation in July: 36.25 billion kWh, about 20% of total generation, up ~30% year-on-year.
- Coal's generation share: 65.7% in July, down from 69% in June — a one-year low.
- Total electricity generation in July: 181.79 billion kWh, up 10.4% year-on-year.
- Combined solar and wind capacity crossed 100 GW for the first time; renewables hit a record 42.8% single-day supply share in mid-July.
- India's NDC target: 50% of installed capacity from non-fossil sources by 2030 (achieved ahead of schedule, mid-2025).
- India's first Sovereign Green Bond issuance: ₹8,000 crore (~$1 billion), January 2023.