J-Power takes 10% stake in Australian renewables developer Genex Email J-Power also recently announced it is to convert a retired coal plant in the US into a 240MW solar-plus-storage site. Image: J-Power USA Japanese power company J-Power has acquired a 10% stake in renewables and pumped hydro developer Genex Power through its Australian subsidiary JPGA Partners. Genex – which has three solar assets in stages ranging from feasibility to operation – has worked with J-Power previously to expand its renewable energy projects, with this based on a technical services agreement to support the construction and operation of the former’s 250MW pumped storage hydro power plant, as well as a development funding agreement for a new 150MW wind power project which is currently at the feasibility study stage.