September 10 (Renewables Now) - A unit of Japanese oil company Cosmo Oil Co Ltd (TYO:5007) has plans to build an up to 1-GW offshore wind farm near the cities of Ishikari and Otaru in Hokkaido.
Cosmo Eco Power at the end of August submitted an environmental impact statement (EIS) for the project in Ishikari Bay, saying the wind farm will have up to 125 wind turbines installed at water depths of up to 200 metres. For now the company is assuming a wind turbine size of between 8 MW and 12 MW for the project and the total number will depend on the choice of technology.
The wind turbine foundation technology will be selected after Cosmo Eco has completed its marine geology surveys, and the transmission line route is also subject to further studies.
Early in 2019 market research company Wood Mackenzie said Japan would top 4 GW of offshore wind capacity in 2028, which would be a 62-fold increase from 2018.