Hydroelectricity in Japan

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Hydroelectricity is Japan's main renewable energy source, with an installed capacity of about 50 GW (including pumped storage)[1] and a production of 69.2 TWh of electricity in 2009,[2] making Japan one of the biggest hydroelectricity producers in the world. Most of Japanese hydroelectric power plants are pumped-storage plants. Conventional hydropower plants account for about 20 GW out of the total installed capacity as of 2007.[3]

Conventional hydropower potential of Japan is considered to be almost fully developed, with little opportunity for further capacity increase.[4] In recent years, almost exclusively pumped storage plants were commissioned, significantly increasing the ratio of pumped storage capacity over conventional hydro.[4] The large capacity of pumped storage hydropower was built to store energy from nuclear power plants, which until the Fukushima disaster constituted a large part of Japan electricity generation. As of 2015, Japan is the country with the highest capacity of pumped-storage hydroelectricity in the world, with 26 GW of power installed.[5] After the 2011 nuclear power shutdowns, pumped-storage plants have been increasingly used to balance the variable generation of renewable energy sources such as solar, which have been growing rapidly in recent years.[5]

As of September 2011, Japan had 1,198 small hydropower plants with a total capacity of 3,225 MW. The smaller plants accounted for 6.6% of Japan's total hydropower capacity. The remaining capacity was filled by large and medium hydropower stations, typically sited at large dams. Cost per kilowatt-hour for power from smaller plants was high at ¥15-100, hindering further development of the energy source.[6]

List of hydroelectric power stations[edit]

The Ueno Dam, lower reservoir of the pumped-storage Kannagawa Hydropower Plant
Station Capacity (MW) Community Coordinates Status Type
Akiba Dam 127.1   34°58′20″N 137°49′42″E / 34.97222°N 137.82833°E / 34.97222; 137.82833 (Akiba Dam) Operational pumped storage
Amagase Dam 92   34°52′51″N 135°49′41″E / 34.88083°N 135.82806°E / 34.88083; 135.82806 (Amagase Dam) Operational conventional
Arimine Dam 534   36°29′22″N 137°26′55″E / 36.48944°N 137.44861°E / 36.48944; 137.44861 (Arimine Dam) Operational conventional
Dashidaira Dam 124   Operational
Funagira Dam 32   34°53′26″N 137°48′54″E / 34.89056°N 137.81500°E / 34.89056; 137.81500 (Funagira Dam) Operational
Hatanagi-I Hydroelectric Dam 137   35°19′17″N 138°10′59″E / 35.32139°N 138.18306°E / 35.32139; 138.18306 (Hatanagi-I Hydroelectric Dam) Operational pumped storage
Hatanagi-II Hydroelectric Dam 85   35°18′29″N 138°12′11″E / 35.30806°N 138.20306°E / 35.30806; 138.20306 (Hatanagi-II Hydroelectric Dam) Operational pumped storage
Hiraoka Dam 101   Operational
Honkawa[7] 600      
Ikawa Dam 62   35°12′38″N 138°13′22″E / 35.21056°N 138.22278°E / 35.21056; 138.22278 (Ikawa Dam) Operational
Ikehara Pumped Storage Plant 350   Operational pumped storage
Imaichi Pumped Storage Plant 1,050 36°49′31″N 139°39′58″E / 36.82528°N 139.66611°E / 36.82528; 139.66611 (Imiachi Dam) Operational pumped storage
Kadonogawa Power Station 800   Operational
Kannagawa Hydropower Plant U/C 2,820   36°00′18″N 138°39′09″E / 36.00500°N 138.65250°E / 36.00500; 138.65250 (Kannagawa Hydropower Plant) Operational pumped storage
Kazunogawa Pumped Storage Plant 1,200 35°43′07″N 138°55′47″E / 35.71861°N 138.92972°E / 35.71861; 138.92972 (Kazunogawa Pumped Storage Plant) Operational pumped storage
Kinugawa-Kurobe Dam 127   Operational
Kisenyama Pumped Storage Plant 466   34°53′30″N 135°51′34″E / 34.89167°N 135.85944°E / 34.89167; 135.85944 (Kisenyama Pumped Storage Plant) Operational pumped storage
Konoyama Dam 126   Operational
Kurobe Dam 335   36°33′30″N 137°40′00″E / 36.55833°N 137.66667°E / 36.55833; 137.66667 (Kurobe Dam) Operational
Kuroda Dam 315   35°11′14″N 137°28′34″E / 35.18722°N 137.47611°E / 35.18722; 137.47611 (Kuroda Dam) Operational
Maruyama Dam 185   35°28′08″N 137°10′20″E / 35.46889°N 137.17222°E / 35.46889; 137.17222 (Maruyama Dam) Operational
Masegawa Dam[7] 288   Operational
Matanoagawa Pumped Storage Plant 1,200   35°14′44″N 133°29′30″E / 35.24556°N 133.49167°E / 35.24556; 133.49167 (Matanoagawa Pumped Storage Plant) Operational pumped storage
Miboro Dam 215   36°08′17.7″N 136°54′38.9″E / 36.138250°N 136.910806°E / 36.138250; 136.910806 (Miboro Dam) Operational
Midono Pumped Storage Plant[7] 122   Operational pumped storage
Miho Dam 7.4   35°24′37″N 139°02′30″E / 35.41028°N 139.04167°E / 35.41028; 139.04167 (Miho Dam) Operational
Misakubo Dam 50   35°11′05″N 137°55′54″E / 35.18472°N 137.93167°E / 35.18472; 137.93167 (Misakubo Dam) Operational
Miyagase Dam 24   35°32′26″N 139°15′09″E / 35.54056°N 139.25250°E / 35.54056; 139.25250 (Miyagase Dam) Operational
Miyanaka Dam 449   Operational
Nagano Pumped Storage Plant 220   Operational pumped storage
Niikappu Pumped Storage Plant 200   Operational pumped storage
Nishiotaki Dam 234   Operational
Numappara Pumped Storage Plant 675   Operational pumped storage
Ohashi Dam 615   33°46′13″N 133°20′12″E / 33.77028°N 133.33667°E / 33.77028; 133.33667 (Ohashi Dam) Operational
Ōigawa Dam 68.2   35°09′53″N 138°08′34″E / 35.16472°N 138.14278°E / 35.16472; 138.14278 (Ōigawa Dam) Operational
Okawachi Pumped Storage Power Station[8] 1,280   Operational pumped storage
Okukiyotsu Pumped Storage Power Station (1 & 2) 1,600   Operational pumped storage
Okinawa Yanbaru Seawater Pumped Storage Power Station[9] 30   26°40′25″N 128°15′56″E / 26.67361°N 128.26556°E / 26.67361; 128.26556 (Okinawa Yanbaru Seawater Pumped Storage Power Station) Operational pumped storage
Okutadami Dam 560   37°09′12″N 139°15′00″E / 37.15333°N 139.25000°E / 37.15333; 139.25000 (Okutadami Dam) Operational
Okutataragi Pumped Storage Plant 1,932   35°14′12″N 134°51′23″E / 35.23667°N 134.85639°E / 35.23667; 134.85639 (Okutataragi Pumped Storage Plant) Operational pumped storage
Okuyoshino Pumped Storage Plant 1,206 Totsukawa 34°7′4″N 135°49′16″E / 34.11778°N 135.82111°E / 34.11778; 135.82111 (Okuyoshino Pumped Storage Power Station) Operational pumped storage
Otori Dam 182   37°12′53″N 139°12′50″E / 37.21472°N 139.21389°E / 37.21472; 139.21389 (Otori Dam) Operational
Sagami Dam 31   35°36′56″N 139°11′43″E / 35.61556°N 139.19528°E / 35.61556; 139.19528 (Sagami Dam) Operational
Sakuma Dam 350 Sakuma 35°05′58″N 137°47′39″E / 35.09944°N 137.79417°E / 35.09944; 137.79417 (Sakuma Dam) Operational
Sasamagawa Dam 58   34°58′17″N 138°05′38″E / 34.97139°N 138.09389°E / 34.97139; 138.09389 (Sasamagawa Dam) Operational
Senzu Dam 22.2   35°13′00″N 138°05′25″E / 35.21667°N 138.09028°E / 35.21667; 138.09028 (Senzu Dam) Operational
Shimogo Pumped Storage Power Station 1,000   Operational pumped storage
Shin-Takasegawa Pumped Storage Plant 1,280   36°28′26″N 137°41′23″E / 36.47389°N 137.68972°E / 36.47389; 137.68972 (Shin-Takasegawa Pumped Storage Plant) Operational pumped storage
Shinanogawa Pumped Storage Plant 234   Operational pumped storage
Shintoyone Pumped Storage Plant 1,125   35°07′33″N 137°45′38″E / 35.12583°N 137.76056°E / 35.12583; 137.76056 (Shintoyone Pumped Storage Plant) Operational pumped storage
Shiobara Pumped Storage Plant 900   Operational pumped storage
Shiogō Dam 58   35°00′05″N 138°05′15″E / 35.00139°N 138.08750°E / 35.00139; 138.08750 (Shiogō Dam) Operational
Shiroyama Dam 275   35°35′09″N 139°17′22″E / 35.58583°N 139.28944°E / 35.58583; 139.28944 (Shiroyama Dam) Operational
Tagokura Dam 390   37°18′38″N 139°17′13″E / 37.31056°N 139.28694°E / 37.31056; 139.28694 (Tagokura Dam) Operational
Takami Pumped Storage Plant 200   Operational pumped storage
Taki Dam 92   37°23′13″N 139°32′02″E / 37.38694°N 139.53389°E / 37.38694; 139.53389 (Taki Dam) Operational
Tamahara Pumped Storage Power Station 1,200 36°46′56″N 139°03′23″E / 36.78222°N 139.05639°E / 36.78222; 139.05639 (Tamahara Pumped Storage Power Station) Operational pumped storage
Tashiro Dam 40.1   35°29′55″N 138°14′47″E / 35.49861°N 138.24639°E / 35.49861; 138.24639 (Tashiro Dam) Operational
Tedorigawa I Dam 250   Operational
Tokuyama Dam 153   35°39′55″N 136°30′08″E / 35.66528°N 136.50222°E / 35.66528; 136.50222 (Tokuyama Dam) Operational
Okuyahagi Pumped Storage Power Station 1,160   35°11′59″N 137°27′31″E / 35.19972°N 137.45861°E / 35.19972; 137.45861 (Tominaga Dam) Operational pumped storage
Yagisawa Pumped Storage Plant 240   Operational pumped storage
Yomihaki Power Station 112   Operational

See also[edit]

References[edit]

  1. ^ "2015 Key World Energy Statistics" (PDF). report. International Energy Agency (IEA). Retrieved 1 June 2016. 
  2. ^ See Hydroelectricity#World hydroelectric capacity
  3. ^ "Status of Hydropower in Japan - May 2007" (PDF). New Energy Foundation. Retrieved 15 July 2017. 
  4. ^ a b "ELECTRICITY REVIEW JAPAN 2015" (PDF). The Federation of Electric Power Companies of Japan. Retrieved 15 July 2017. 
  5. ^ a b Fairley, Peter (18 March 2015). "A Pumped Hydro Energy-Storage Renaissance". IEEE Spectrum: Technology, Engineering, and Science News. Retrieved 23 October 2017. 
  6. ^ Johnston, Eric, "Small hydropower plants keep it local", Japan Times, 29 September 2011, p. 3.
  7. ^ a b c Pumped-Storage Hydroelectric Plants in Japan - Industcards
  8. ^ Major Power Plants in Japan
  9. ^ Yanbaru Archived 2007-08-04 at the Wayback Machine.