Summary
Nuclear hydrogen production via commercially mature water electrolysis technology is a promising, low‐carbon route to bulk quantities of hydrogen for industrial decarbonization. This has special relevance to all energy resource‐poor countries like India who must also reduce dependence on imported fossil fuels and chemical feed stock like natural gas. This study assesses green hydrogen demand in major Indian industries vis‐à‐vis the corresponding hydrogen supply capability via water electrolysis by Indian nuclear power reactors. India's existing, upcoming, and planned nuclear reactors can power modular water electrolysers to produce 1.8–4.0 million metric tons H2 per annum at annualized production costs competitive with current renewable hydrogen costs. Nuclear hydrogen can meet between 6% and 15% of the current green hydrogen demand of priority sectors in India. Project profitability requires sale price of nuclear hydrogen to be at least 60% to 90% above the levelized production cost. Depending on the end user sectors, nuclear hydrogen can enable avoidance of 490–570 million tons CO2 per annum from several industries beyond the electric power sector.
Novelty Statement
The study analyses the potential of India's existing and upcoming nuclear power reactors to diversify and support the creation of a domestic green hydrogen supply chain for decarbonization of critical and hard‐to‐abate industries. It analyzes sectoral demands for hydrogen, techno‐economic aspects of nuclear hydrogen production using site‐specific data, including comparison with solar hydrogen. It emphasizes the importance of diversifying the energy mix used for large quantities of green hydrogen for sustainable decarbonization of sectors like fertilizers, metallurgy, and long‐distance transport.