Kanemaru Airfield

Economic and land reutilization. The owner, Nasu Kensetsu K.K., a local construction company, determined that the land would be more profitable as a renewable energy asset. The decision was made to close the airfield and build a solar power plant, aligning with Japan's promotion of renewable energy during that period.

The site has been completely converted into a solar power plant. It is now the 'Nasu Kensetsu Kanemaru Solar Plant' (那須建設金丸太陽光発電所), a 2.3 MW mega-solar facility that began operations in mid-2017. The former runway, taxiway, and apron areas are now covered with thousands of solar panels. The original hangar building on the northwest side of the property appears to still be standing, likely repurposed for maintenance or storage for the solar farm.

Kanemaru Airfield was a private 'off-field landing and takeoff site' (場外離着陸場 - jōgai richakuriku-jō) that opened in April 1989. It was owned and operated by the Nasu Kensetsu construction company for its corporate and general aviation activities. The facility featured a single paved runway measuring approximately 550 by 25 meters and a hangar. For over 25 years, it served as a local hub for private pilots and small aircraft (such as Cessna models), supporting business travel for the parent company and recreational flying in the northern Tochigi Prefecture.

None. The airfield's infrastructure has been physically and permanently replaced by the operational solar farm. Reverting the site to an airfield would require the complete removal of the power plant, which is economically unfeasible. The owner has made a long-term business commitment to power generation on this land, and there are no known plans or discussions about reopening the airfield.