The National Institute of Solar Energy (NISE) in India, under the Ministry of New and Renewable Energy (MNRE), has initiated an expression of interest (EoI) to seek assistance in defining and drafting tender terms for the operation and maintenance (O&M) of its green hydrogen generation, storage, and refueling facility at the NISE Hydrogen Facility in Gurugram, Haryana. The EoI aims to support NISE in formulating a comprehensive tender to select an O&M service provider for the solar-powered green hydrogen facility. The project involves a facility with a production capacity of 15 Nm³/hr and hydrogen storage of 60 kg, powered by a 120 kWp rooftop solar system. The technology utilized includes alkaline electrolyzers, a hydrogen dispenser, hydrogen storage, and a high-pressure compressor. Bidders are required to propose O&M models such as public-private partnerships or third-party contracts, along with cost structures encompassing various expenses like manpower and consumables. Experience in operating electrolyzer plants is desirable but not mandatory. This initiative is part of the National Green Hydrogen Mission and aligns with the Green Hydrogen Certification Scheme introduced by the Government of India. The scheme aims to officially recognize hydrogen as 'green' if its non-biogenic greenhouse gas emissions remain below specified levels. NISE's effort signifies a step towards promoting green hydrogen production and developing sustainable energy practices in the country.