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HNH Energy seeks approval for a 1.4 GW green ammonia project in Chile

HNH Energy, owned by Asoe Chile Diez, a consortium of Austria Energy Group, Copenhagen Infrastructure Partners (CIP) and Ökowind, has submitted a large green ammonia project to Chile's Environmental Impact Assessment System (SEIA). Located in San Gregorio, about 120 km from Punta Arenas, the US$11bn project includes the construction of a green hydrogen processing plant, a seawater desalination plant, a 1.4 GW wind farm with 194 turbines, and a multipurpose port with a marine terminal. It aims to produce 270,000 t/year of hydrogen and 1.3 Mt/year of ammonia annually, with a storage capacity of 60,000 t/year. The project will start construction in 2027, be commissioned in 2030 and have a 50-year lifespan. The development will occur in two stages due to land occupation uncertainties. The first stage includes the wind farm, hydrogen production, and associated infrastructure, while the second stage will add a 2.1 GW wind project to ensure full operational capacity.