As of May 2024, it is, at 112MW, the largest commercial offshore wind farm in Japan.
[3] The project was originally developed by Green Power Investment Corporation (GPI), the Japanese affiliate of Pattern Energy.
[4] The project ownership changed upon the sale in May 2023 of GPIto JERA - the joint venture of TEPCO Fuel & Power and Chubu Electric Power - and NTT Anode Energy.
[6] The project uses the typhoon and seismic certified SG 8.0-167 DD offshore wind turbine from Siemens Gamesa[7] (where DD denotes its gearbox-less direct drive generator).
[3] Due to limited electrical transmission capacity to Honshu, and Hokkaido's relatively small, mainly rural, population, the local Transmission System Operator requires that all major renewable generator directly connect projects to a Battery Energy Storage System (BESS), and so the Ishikari Bay project is paired to a 100MW/180MWh BESS.