The GDC Renewable Energy Council (GDC REC) was established in response to the energy crisis caused by the Great East Japan Earthquake in 2011. As a group of major energy-consuming cities with a population greater than 500,000, government-designated cities (GDCs) mayors agreed that it is necessary for them to promote and expand renewable energy to prevent a similar crisis in the future.

July 27th, 2011 The GDC REC was founded with 17 cities
July 18th, 2013 Niigata City joined the council
May 12th, 2015   Kumamoto City joined the council
July 5th, 2021   Chiba City joined the council
         The council celebrated its 10th anniversary

 Chairperson: Daisaku Kadokawa, Mayor of Kyoto City
 Vice Chairperson: Soichiro Takashima, Mayor of Fukuoka City
 Vice Chairperson: Hayato Shimizu, Mayor of Saitama City
 Board:Norihiko Fukuda, Mayor of Kawasaki City
 Board:Kazuko Kori, Mayor of Sendai City
Municipality Members:
 Sapporo, Sendai, Saitama, Chiba, Yokohama, Kawasaki, Sagamihara, Niigata, Shizuoka, Hamamatsu, Nagoya, Kyoto, Osaka, Sakai, Kobe,  Okayama, Hiroshima, Kitakyushu, Fukuoka, Kumamoto
 Secretary-General: Masayoshi Son, Chairman, SoftBank Group Corp.