Tomamae Winvilla Power Plant is a 30.6MW onshore wind power project. It is located in Hokkaido, Japan. The project is currently active. It has been developed in multiple phases. Post completion of construction, the project got commissioned in December 2000.

Project Type Total Capacity (MW) Active Capacity (MW) Pipeline Capacity (MW) Project Status Project Location Project Developer
Onshore 30.6 30.6 Active Hokkaido, Japan Electric Power Development


The project is developed and owned by Electric Power Development. The company has a stake of 100%.

The project generates 59GWh electricity and supplies enough clean energy to power 17,000 households. The project cost is $58.5m.

Development Status

The project is currently active. The project got commissioned in December 2000.

Power Purchase Agreement

The power generated from the project is sold to Hokkaido Electric Power under a power purchase agreement.

Contractors Involved

Tomamae Winvilla Power Plant (Tomamae Winvilla Power Plant1) is equipped with Vestas Wind Systems turbines. The phase consists of 14 turbines, each with 1.65MW nameplate capacity.

Tomamae Winvilla Power Plant (Tomamae Winvilla Power Plant2) is equipped with Enercon turbines. The phase consists of 5 turbines, each with 1.5MW nameplate capacity.

Kaihatsu Denki is the O&M contractor for the wind power project.

About Electric Power Development

Electric Power Development Co Ltd (J-Power) is a wholesale electric utility that supplies hydroelectric and thermal power. It owns and operates a network of hydroelectric, thermal, wind and geothermal power plants. The company provides electricity and transmission services to major electric power companies in Japan. It constructs and operates power transmission and transforming facilities. J-Power’s other activities comprises environmental, telecommunications, overseas generation investment, consulting, selling of coal and resource management. The company owns and operates power generation facilities in several countries including Thailand, the US and China. J-Power is headquartered in Chuo-ku, Tokyo, Japan.


All power projects included in this report are drawn from GlobalData’s Power Intelligence Center. The information regarding the project parameters is sourced through secondary information sources such as electric utilities, equipment manufacturers, developers, project proponent’s – news, deals and financial reporting, regulatory body, associations, government planning reports and publications. Wherever needed the information is further validated through primary from various stakeholders across the power value chain and professionals from leading players within the power sector.