Larsen & Toubro’s subsidiary L&T Energy GreenTech Ltd (LTEG) plans to construct India’s largest green hydrogen plant at Indian Oil Company’s Panipat refinery in Haryana.
Project factsheet
Location: IOCL’s Panipat Refinery & Petrochemical Complex, Haryana, India
Developer: L&T GreenTech Ltd (LTEG)
Project offtaker: Indian Oil Corporation Ltd (IOCL)
Project model: Build-Own-Operate (BOO)
Production capacity: 10,000 tons of green hydrogen annually
Technology used: High-pressure alkaline electrolysers
Contractor: LTEG
Contract term: 25 years
End of construction date: Within 30 months i.e. by December 2027
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More on India’s Largest Green Hydrogen Plant by L&T
L&T’s largest green hydrogen plant in India will be developed on a Build-Own-Operate (BOO) basis. Once operational, the plant will supply 10,000 tons of green hydrogen annually. The plan also covers a 25-year operation contract, and furthermore supports the Government of India’s National Green Hydrogen Mission.
The government announced the plant construction tender in April 2024. This was followed by bids, with L&T wining the bid for ₹397 per kg (USD 4.65–4.75/kg). This was competed against NTPC Renewable Energy at ₹398/kg and ReNew at ₹407/kg. L&T offered the lowest bid and secured 100% of the capacity.

Also included in the green hydrogen plant’s design is a renewable energy source. High-pressure alkaline electrolysers by the L&T based Gujarat facility will also be used at the green hydrogen plant. This ensures India’s net-zero ambitions are looked up to, a move that aligns with IOCL’s broader decarbonization strategy.
Mr. Sarma, L&T’s Managing Director and President, also termed the project as the “foundation for cleaner industrial processes at scale”. A project, he says, will lead India’s green energy transition.
Why India’s Largest Green Hydrogen Plant Project Matters
- It is among the first large-scale industrial green hydrogen plants in India.
- A wining bid price of ₹397 per kg (USD 65–4.75/kg) offers a competitive price point. This also invariably attract investors.
- L&T’s full-stack integration demonstrates the company’s infrastructural abilities. The company will handle the electrolyser manufacturing to Engineering, Procurement, and Construction (EPC), and operation.
- The Panipat green hydrogen project marks L&T’s entry into industrial-scale green hydrogen production. This further boosts the company’s credentials in low-carbon infrastructure.
- Plans for construction of India’s largest green hydrogen plant also reinforces the country’s decarbonization efforts and the broader hydrogen adoption across industries.
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