Japanese firm using school pools to improve solar energy efficiency Sorry, but your browser needs Javascript to use this site. If you're not sure how to activate it, please refer to this site: https://www.enable-javascript.com/ ELM Inc. has installed solar panels on the surface of swimming pools at an abandoned school in Minamisatsuma, Kagoshima Prefecture, in a move the firm says is a first for Japan. | KYODO Kyodo Jan 24, 2021 Kagoshima – An industrial equipment developer in southwestern Japan has produced an innovative solution that uses water in swimming pools at defunct schools to prevent its solar power systems from overheating.