India’s renewable-energy challenge is changing. The question is no longer simply how many solar panels and wind turbines the country can install; it is increasingly whether the electricity they produce can be moved across the grid, stored when supply exceeds demand and delivered when the sun has set or the wind has weakened.
The Union Cabinet’s approval of the ₹1.86-lakh-crore Green Energy Corridor Phase III is therefore less about creating another renewable-energy scheme and more about building the infrastructure required to make the green transition work at scale.
But there is an equally important policy imperative. The transition towards green energy cannot come at the cost of weakening the traditional sectors that continue to support India’s energy security, employment and industrial economy. India’s electricity system will, for the foreseeable future, require renewables, storage, coal, hydro, nuclear and other sources to operate as parts of an increasingly diversified energy architecture rather than as mutually exclusive alternatives.
Approved on September 30, Green Energy Corridor Phase III envisages a total outlay of ₹1,86,405 crore. Of this, ₹1,36,378 crore will go towards strengthening intra-state transmission systems capable of evacuating up to 135 GW of renewable energy, while ₹50,000 crore has been earmarked for 50 GWh of Battery Energy Storage Systems (BESS). The Centre will provide financial support of ₹54,082 crore, and the programme is targeted for completion by FY2032-33.
The scale reflects how rapidly India’s power system is changing. As of August 31, renewable capacity stood at about 295.55 GW, including 168.04 GW of solar and 58.52 GW of wind. Total non-fossil capacity had crossed 304 GW.
Installing generating capacity, however, is only one side of the equation. A solar project located far from a major consumption centre has limited value if transmission lines cannot evacuate its electricity. Similarly, solar generation cannot independently satisfy evening demand without storage, flexible generation or other balancing resources.
This is where GEC-III assumes strategic significance. The Cabinet scheme explicitly identifies battery storage as a mechanism for addressing intermittency, congestion and peak-hour curtailment and for meeting non-solar-hour demand. Batteries can absorb electricity when renewable generation is abundant and release it when the grid requires it.
The transmission component is just as important. Renewable projects can generally be built faster than major transmission infrastructure. The Ministry of Power has acknowledged this sequencing problem and said transmission systems need to be developed in advance of renewable capacity. Its planning framework envisages investments exceeding ₹9.15 lakh crore in transmission infrastructure up to 2032.
GEC-III therefore represents a shift from renewable-energy expansion towards system integration. Greenfield intra-state projects will be implemented through tariff-based competitive bidding, while brownfield upgrades and network strengthening will operate on a cost-plus basis. State Transmission Utilities will be the overall implementing agencies, with private Transmission Service Providers participating under the Build-Own-Operate-Maintain model.
This structure also places considerable responsibility on states. Transmission lines require land, rights of way, regulatory approvals and coordination between generating companies, utilities and multiple levels of government. Delays in any of these areas can create stranded renewable capacity or push up project costs.
Green transition must also mean energy security
Yet the rapid growth of renewables should not obscure another reality: coal and thermal power remain central to India’s electricity system.
Coal and lignite capacity currently stands at about 230.8 GW and supplied nearly 70% of electricity during April-June 2026. During non-solar peak-demand hours, coal plants produced as much as 188.8 GW, accounting for roughly three-fourths of generation at that point.
That is why the green transition cannot simply be understood as the replacement of conventional power by renewables. India is a rapidly developing economy whose electricity requirements are rising alongside urbanisation, manufacturing, digital infrastructure, electric mobility and household consumption. Reliability and affordability remain as important as decarbonisation.
The government’s own planning recognises this reality. The Central Electricity Authority has estimated that India could require approximately 307 GW of coal and lignite capacity by 2034-35, compared with 211.9 GW in March 2023, and the Ministry of Power has envisaged at least 97 GW of additional coal and lignite capacity.
This does not contradict the renewable push. It illustrates the complexity of managing a transition in an economy of India’s scale.
The objective should be to reduce the emissions intensity of economic growth while simultaneously improving the efficiency and environmental performance of traditional industries. Modernising thermal plants, improving coal logistics, reducing pollution, raising plant efficiency and developing carbon-management technologies can proceed alongside solar, wind, batteries, pumped storage and nuclear expansion.
The same principle extends beyond electricity. Coal mining, thermal generation, steel, cement, transport and other conventional sectors sustain extensive employment, industrial supply chains and regional economies. An abrupt transition that destroys productive capacity before viable alternatives emerge could impose economic and social costs, particularly on states and communities heavily dependent on these industries.
India consequently needs an additive transition before it can contemplate a substantially substitutive one: build cleaner sources rapidly while ensuring that dependable conventional capacity remains available wherever the grid requires it.
Green Energy Corridor Phase III fits that approach. Its significance lies not merely in facilitating another 135 GW of renewable energy, but in addressing the infrastructure constraints that determine whether renewable capacity can actually become dependable electricity. The ₹50,000-crore storage component is particularly important because it begins tackling one of renewable energy’s fundamental limitations—availability does not always coincide with demand.
India’s energy transition will ultimately be judged by more than gigawatts of renewable capacity. It must deliver affordable electricity, grid stability, industrial competitiveness, employment and lower emissions simultaneously.
The strongest energy system will not be one that replaces one source with another overnight, but one that steadily builds a cleaner, more diversified and technologically sophisticated energy mix without compromising the economic foundations on which India’s growth depends.
