Mumbai, Aug. 7 -- Renewable generation in July reduced coal's share in the country's power mix to the lowest level seen in a year as wind and solar output rose. National grid data showed a marked shift towards variable renewable sources, signalling a transition in supply patterns. Analysts attributed the change to higher renewable dispatch and scheduled maintenance at several thermal plants, which together lowered coal-fired generation across regions.
The increase in renewable output was led by solar photovoltaic installations and seasonal improvement in wind generation, while run-of-river hydro supplied additional flexible output. Improved forecasting and grid management allowed operators to absorb higher variable output without compromising reliability, and the system operator reported stable reserve margins during peak periods. Transmission upgrades in key corridors also supported greater cross-regional transfers of green power.
Thermal generation fell as coal-fired units reduced runs because of planned outages and optimisation of dispatch to accommodate cheaper renewable energy. Coal procurement and logistics constraints in some districts further curtailed usage of thermal stations, reinforcing the shift. Generators and distribution companies adjusted schedules to prioritise lower-cost energy, which resulted in a visible change in the merit order of supply.
Policy frameworks supporting renewables, including competitive auctions and firm scheduling, continued to underpin investments and integration efforts. Market participants said this pattern is consistent with longer-term trends that see renewable sources supplying an increasing share of electricity. Operators will monitor seasonal variations and fuel availability to ensure that the transition maintains grid stability while reducing the carbon intensity of power supply.
Investors noted that declining coal utilisation alters revenue profiles for thermal operators and strengthens the business case for storage and demand response solutions. System planners are discussing enhanced flexibility measures to manage variability and ensure that emissions decline as renewable capacity grows, preserving supply security while supporting decarbonisation objectives.
Published by HT Digital Content Services with permission from Construction World.