North Korea’s military is using renewable energy sources for at least one of its air bases and may do so elsewhere in the future, state media reports revealed Monday.

Reports and photographs in the state-run Rodong Sinmun and Korean Central News Agency Monday showed that the Korean People’s Army has both a wind turbine and a solar cell array installed at the Kwail Airfield in South Hwanghae Province, home of KPA Air and Anti-Force Unit 1016 – a.k.a. the 4th Air Regiment.