The data displays the capacity of pumped storage hydropower worldwide in 2015, with a breakdown by select country. As of that time, Japan's pumped storage hydropower capacity amounted to approx. 28 gigawatts.
Japan | 27637 |
China | 23060 |
United States | 22441 |
Italy | 7555 |
France | 6985 |
Germany | 6806 |
Spain | 5268 |
Austria | 5200 |
India | 4786 |
South Korea | 4700 |