India Scorched by Brutal Heatwave: Power Demand Hits Record 270 GW as Mercury Touches 48°C

New Delhi, June 10. The brutal heat this year has left the whole of India scorched. Through May and June 2026, the mercury across the northern, central and eastern parts of the country stayed persistently between 45 and 48 degrees Celsius. The India Meteorological Department (IMD) issued heatwave warnings for several states, including Delhi, Rajasthan, Punjab, Haryana, Uttar Pradesh, Madhya Pradesh, Vidarbha, Chhattisgarh, Bihar and Telangana. The intensity of the heat can be gauged from the fact that at one point, 97 of the world's 100 hottest cities were in India.

Power Demand Shatters Records

Amid the searing heat, the relentless use of air conditioners and fans sent electricity demand soaring. On May 21, 2026, peak power demand in the country hit a record 270 gigawatts—the fourth consecutive time the national record was broken. For comparison, the peak demand in June 2025 was 243 GW. To meet this pressure, there was heavy reliance on coal-fired plants; upwards of 75 per cent of power during peak load periods was generated from coal.

New Temperature Milestones

Balangir in Odisha touched 48 degrees Celsius. Akola, in Maharashtra's Vidarbha region, recorded the country's highest temperature of 46.9 degrees Celsius on April 26, while in May the mercury crossed 48 degrees in several parts of Uttar Pradesh. According to the IMD's seasonal outlook, above-normal heatwave days were forecast over parts of east, central and northwest India and the southeast peninsula during April to June 2026—a prediction that proved accurate.

Toll on Lives and Daily Life

The heat severely disrupted everyday life. During elections in West Bengal, several voters collapsed at polling stations. There were reports of census workers dying while on duty, and one man died of the heat while travelling to a wedding. India, however, does not maintain a unified national dataset on heatstroke and heat-related deaths, making the true toll hard to estimate. One study suggests a single day of extreme heat causes roughly 3,400 excess deaths nationally, and a five-day heatwave may be linked to nearly 30,000 additional deaths.

Blow to the Economy and Agriculture

The impact was not confined to health. The heatwave struck during the wheat harvest season, raising the threat of crop damage. Research indicates each 1°C rise in temperature can cause about an 8 per cent loss in national wheat yields. The economic damage has been heavy too; an earlier Lancet study estimated that heat exposure causes the loss of around 247 billion potential labour hours, valued at roughly $194 billion—figures expected to worsen in 2026.

Cities and Workers Bear the Heaviest Toll

The heaviest price of the brutal heat is being paid by the most vulnerable sections of society. Construction workers, street vendors, rickshaw pullers, farm labourers and millions of others who work in the open are forced to stay out in the scorching sun all day, taking a deep toll on both their health and their livelihoods. In urban areas, the 'urban heat island' effect makes concrete jungles even hotter, and temperatures do not fall sufficiently even at night, denying people relief. Shortages of water and electricity have deepened the crisis—demand for drinking water hit record levels in several cities, while power cuts in some areas rendered even fans and coolers useless. Hospitals saw a sharp rise in patients with heatstroke, dehydration and heat-related illnesses. Health experts appealed to people to avoid stepping out in the afternoon, to drink plenty of water and to take special care of the elderly and children. Labour unions demanded that outdoor working hours be rescheduled during severe heat and that shade, water and rest be made mandatory for workers.

Hopes of Monsoon Relief

A glimmer of relief appeared in the second week of June when the southwest monsoon advanced into the northeastern states, Sikkim and parts of West Bengal and Bihar. The weather office forecast that as the monsoon progresses, a spell of rain would soon begin over northwest India as well, cooling the parched land. Experts caution, however, that this extreme pre-monsoon heat is no longer an exception but is fast becoming the new normal.

The Road Ahead

Climate experts and policymakers agree that rising heat is a long-term challenge requiring concrete preparation. There are growing calls to strengthen city-level 'heat action plans', set up cooling shelters for the poor and working class, expand the capacity of the power grid and increase reliance on renewable energy. Equally, developing a system to gather accurate data on heat-related deaths is being described as essential, so that future policies can be grounded in evidence rather than guesswork.