Subaru Corporation plans to install what it describes as Japan's largest-scale captive-consumption solar power system at its Gunma Oizumi plant where it builds its famous horizontally-opposed engines and transmissions.

The company has signed an agreement with Japan Facility Solutions which will install and manage the system.

The facility is scheduled to be complete and in operation by March 2020. The system will have an output of 5MW for electricity use within the plant (for an annual output of 5,000 MWh/year). The new facility is expected to bring a reduction of approximately 2,370 tons of CO2 per year, equivalent to around 2% of annual carbon dioxide emissions at the plant.

The Subaru Environmental Policies, revised in 2017, outline the company's "efforts to reduce carbon dioxide emissions in all of our operations.

"Based on these policies, we are moving toward achieving our target of reducing the group's direct CO2 emissions to 30% below fiscal 2016 levels by fiscal 2030 (on a total emissions volume basis)," the automaker said in a statement.

"The installation of this new solar facility, which follows Subaru's participation in the Tochigi Furusato Denki programme in April 2018, is the latest initiative to achieve this goal."