Vena Energy-affiliated Nakaura Wind Power LLC commissioned the 7.5MW Nakaura onshore wind project in Saikai City, Nagasaki Prefecture, the Singapore-based renewables developer announced on September 26, 2025.
“This is the first project to begin commercial operation in the city’s zoning plan’s business promotion area,” said Saikai’s mayor Mitsuyuki Segawa. The power plant consists of two 4.2MW turbines with their combined output capped due to grid connection size.
It is the developer’s first onshore wind project in Japan for which the company managed engineering, procurement, and construction (EPC) in-house through Vena Energy Engineering. Local companies including Ichiban Kensetsu handled the actual construction work.
METI data shows the project was certified under the feed-in-tariff (FIT) scheme in FY2016, when 20kW and larger onshore wind power plants were offered 22 yen per kWh for 20 years.
Nakaura follows Vena Energy’s first operational wind power plant in Japan, the 7.5MW Reihoku in Kumamoto Prefecture commissioned in June 2021, and the 36MW Nakasato in Aomori Prefecture commissioned in April 2022. The company also completed the environmental impact assessment for a 50MW asset in Shimane Prefecture in July 2025. The following month, it said it had a 2.4GW operational, under-construction, and contracted project portfolio in the country.
