NOS Nova AS operates as a clean energy company in Norway. The company offers clean ammonia and hydrogen; carbon transport and storage services; and midstream CCS infrastructure, such as carbon dioxide... NOS Nova AS operates as a clean energy company in Norway. The company offers clean ammonia and hydrogen; carbon transport and storage services; and midstream CCS infrastructure, such as carbon dioxide terminals and pipelines. Its projects include the Gismarvik CO2 hub in Rogaland, Norway; the Barents Blue clean ammonia plant that produces ammonia from clean water, renewable energy, and low-carbon natural gas; and the Polaris CO2 commercial carbon storage project. The company was formerly known as Horisont Energi AS and changed its name to NOS Nova AS in December 2025. NOS Nova AS was founded in 2019 and is headquartered in Sandnes, Norway.