By Sadananda Mohapatra, Senior Business Journalist
Despite Monsoon Rains, Hydro Lags. Coal Still Carries the Burden
Heavy monsoon rainfall last week cooled temperatures and moderated electricity demand across India. But fresh Grid India data for July 7-13 reveals that hydropower generation has not yet delivered the seasonal boost the grid needs, leaving coal and lignite to shoulder the dominant share of the load.
The renewable picture was encouraging. Solar, wind and other variable renewables rose steadily from 1,098 MU on July 7 to 1,411 MU on July 13, a gain of nearly 29% over seven days, reflecting better solar insolation during breaks in cloud cover and improving wind conditions as the monsoon strengthened. Hydro output edged up modestly, from 580 MU on July 7 to 625 MU on July 13, but remained largely flat through the middle of the week, hovering between 575 and 587 MU per day.
Coal and lignite generation told a different story. Combined thermal output ranged between 3,569 MU and 3,818 MU daily across the week, accounting for roughly 65-70% of total generation on most days. A jump to 3,818 MU on July 13, with coal at 3,730 MU and lignite contributing 88 MU, underscored how firmly thermal generation remains the grid’s primary balancing tool when renewables and hydro fall short of evening demand.
The slower-than-expected hydro recovery despite widespread rainfall points to a well-documented lag in the system. Monsoon rains take weeks to rebuild reservoir levels and lift river flows to the point where hydro stations can sustain higher output. Key basins across the Western Ghats, the Himalayas and the northeast are still in the storage-rebuilding phase. Until reservoir levels recover sufficiently, thermal plants will continue running at high utilisation to maintain grid stability, particularly during the evening ramp when solar generation drops away.
This dynamic also illustrates an underappreciated grid risk that global energy planners rarely price in adequately. The monsoon season, which should theoretically deliver maximum hydro generation, simultaneously suppresses solar output through persistent cloud cover. The result is a double squeeze: the season expected to ease coal’s burden can instead compress both major clean generation sources at once, leaving thermal plants with no seasonal relief.
The global relevance extends further. India has committed to 500 GW of non-fossil capacity by 2030 and net zero by 2070. Yet coal is running at 65-70% of generation during monsoon, traditionally the season when its share should be at its annual low. If coal cannot be meaningfully displaced even in its weakest season, the pace of India’s transition deserves closer watching. Every emerging economy attempting to replicate India’s solar buildout is watching the same data for lessons about what comes after the panels go up.
The coming weeks will be telling. As reservoir levels recover and river flows strengthen, hydro output should begin its seasonal climb. Until that ramp materialises, this week’s numbers are a reminder that in India’s grid, the monsoon brings rain but not yet relief.
Joules Capsule Quick reads from the world of energy this week
India’s Solar Module Manufacturing Crosses 204 GW on ALMM List
India’s Ministry of New and Renewable Energy updated the Approved List of Models and Manufacturers in July, adding over 10,000 MW of solar module capacity and taking total enlisted capacity above 204 GW. New entrants alongside expansions by existing players including Havells and Cosmic PV reflect the accelerating pace of domestic solar manufacturing. The ALMM listing is a prerequisite for modules used in government-funded projects, making the expansion directly relevant to India’s pipeline of utility-scale solar tenders and its broader goal of reducing dependence on imported panels, primarily from China.
El Nino Risk Could Force India to Burn More Coal for Up to a Year
A developing El Nino weather pattern could compel India to generate an additional 17-24 TWh from fossil fuels, primarily coal, over the next twelve months, according to energy think tank Centre for Research on Energy and Clean Air. El Nino typically suppresses monsoon rainfall, reducing hydro and wind output while pushing up cooling demand, forcing greater reliance on thermal generation. The warning arrives as India’s grid is already running coal harder than seasonal norms suggest, with June and early July data showing thermal plants carrying 65-70% of total generation despite widespread monsoon rains.
India Posts Record June Crude Imports as Russia Cements Top Supplier Status
India imported a record 4.93 million barrels per day of crude oil in June, the highest June volume on record, despite West Asia tensions disrupting Gulf shipments. Russian supplies surged to approximately 2.6-2.7 million barrels per day, accounting for more than 50% of total imports and consolidating Moscow’s position as India’s single largest crude source. Diversification to Venezuela, West Africa and Latin America sustained the record volume, demonstrating India’s ability to rewire supply chains rapidly under geopolitical pressure — a pattern that has become a defining feature of its energy procurement strategy.
About the Author:
Sadananda Mohapatra is a veteran business journalist with decades of experience covering India’s energy, industry, and economic landscape. With stints at reputed financial news publications like The Business Standard & NewsWire18, he reported extensively on India’s power sector, minerals policy, coal and energy regulation, and industrial developments — building a deep, ground-level understanding of the global energy economy. His work spans corporate affairs, infrastructure, and policy analysis, with a particular focus on eastern India’s resource-rich industrial corridor. He currently writes on the global energy landscape through his newsletter, The Joule’s Stack.
