Each year, peak power demand continues to soar as rising temperatures in the summer months increase electricity requirements, making the task of meeting a growing share of this demand with renewables even more challenging. India recorded its highest-ever peak electricity demand of 270.7 GW on May 21, 2026 (at the time of writing) with renewable sources (solar, hydro and wind) meeting around one-third of this demand.
On May 19, 2026, peak demand crossed the 260 GW mark and a day after that, on May 20, 2026, it reached 265.4 GW. Two years ago, on May 30, 2024, peak demand stood at around 250 GW while a month back, on April 25, 2026, 256.1 GW of peak demand was recorded.
The preparations for ensuring uninterrupted power supply during high demand periods are carried out in advance, and include advanced resource adequacy planning; optimal scheduling and despatch of available generation resources; close real-time coordination among national, regional and state despatch centres and generating stations; and efficient utilisation of transmission corridors. Further, hydro-based generation is scheduled to conserve water and meet demand during peak periods, planned maintenance of generating units is minimised during periods of high demand, and a steady coal supply to all thermal power plants is ensured to prevent fuel shortages. Meanwhile, electricity markets help discoms procure power to meet their short-term power requirements.
Power generation capacity additions and a robust national grid are key to ensuring power supply during high demand periods. Around 65 GW of new power generation capacity, including around 55 GW of renewables, was added in 2025-26. Solar power dominates capacity additions trends, with around 44 GW added during 2025-26. What stands out in recent peaks is the growing role of solar power, which contributed around 20-22 per cent of peak demand. This achievement is significant given concerns over the availability and price volatility of natural gas amid the west Asia crisis.
Grid operators, however, cannot afford to become complacent after this achievement. Going forward, the Central Electricity Authority expects the grid to handle a higher demand of around 289 GW in fiscal year 2027. Thus, policymakers should ensure that renewables contribute even more towards meeting these new peaks.
To this end, two key concerns in the renewables space merit attention – curtailment and capacity sitting idle without power sale agreements (PSAs) and grid connectivity. As per a recent report by Ember, total renewable energy curtailment in the first quarter of 2026 reached around 470 GWh. Of this, 300 GWh was due to transmission constraints. Further, around 40 GW of awarded renewable capacity remains without signed PSAs, which has become the key pain point in the renewable industry today. These inefficiencies need to be resolved, as the crisis in west Asia has underscored the need for energy independence.
Going forward, resolving concerns around curtailment and unsigned PSAs will be key to meeting future peak demands.
