On 11 March 2020, the EFTA Surveillance Authority (ESA) declared Norway’s measure to support the development of the world’s first medium-sized floating offshore wind turbine, Hywind Tampen, compatible with the European Economic Area (EEA) Agreement. The measure consists of an investment grant of NOK 2,3 billion (equivalent to ca. €205 million) for the construction of this offshore wind farm, covering about 43% of the total costs of the project. The project seeks to reduce Norway’s carbon footprint and help it transition towards a more sustainable energy supply.