Hydroelectric Plants in Japan - Toyama prefecture

Arimine Daiichi
Location: Toyama
Operator: Hokuriku Electric Power Co
Configuration: 1 X 265 MW Francis
Operation: 1981
T/G supplier: Toshiba
EPC: Maeda Corp
Quick facts: Construction on this multipurpose dam was started by Toyama prefecture before World War II. After the war, Hokuriku EPC took over the project. The 140m structure dams the Joganji and Wada rivers and features an unusual double-bend construction. In addition to the Arimine plant, the dam supplies the Wada I and II hydro plants (122 MW and 27 MW, respectively). Construction was supported by the World Bank

Photograph courtesy of Hokuriku Electric Power Co
Posted 10 Nov 2004

Jinzugawa Daiichi
Location: Toyama
Operator: Hokuriku Electric Power Co
Configuration: 2 X 41 MW Francis
Operation: 1954
T/G supplier: Hitachi

Photograph by Qurren (wikimedia)
Posted 27 Oct 2007

Jinzugawa Daini
Location: Toyama
Operator: Hokuriku Electric Power Co
Configuration: 2 X 20 MW Kaplan
Operation: 1954
T/G supplier: Fuji

Photograph by Qurren (wikimedia)
Posted 27 Oct 2007

Jinzugawa Daisan
Location: Toyama
Operator: Hokuriku Electric Power Co
Configuration: 1 X 8.25 MW, 1 X 10.2 MW Kaplan
Operation: 1957-1959
T/G supplier: Fuji

Photograph by Qurren (wikimedia)
Posted 27 Oct 2007

Kurobegawa-4
Location: Toyama
Operator: Kansai Electric Power Co
Configuration: 3 X 84 MW Kaplan, 1 X 84 MW Pelton
Operation: 1961-1973
T/G supplier: Voith, Hitachi
EPC: Electroconsult, Taisei Corp
Quick facts: Kurobe Dam is Japan's largest dam and the fifth largest arch-type, dome dam in the world. It took seven years to build, cost 51.3bn, and construction claimed the lives of 171 people. Construction was supported by the World Bank and led by Shiro Otagaki, first president of KEPCO. The dam is 186m high with a crest length of 492m. The site is at the south end of Kurobe Gorge, Japan's deepest such geological feature. KEPCO's Kurobegawa-4 hydroelectric plant is sited at the dam. A 6.1km tunnel made for plant construction is now the location of one of Japan's two trolleybus lines, also operated by KEPCO.

Photograph by Qurren (wikimedia)
Posted 27 Oct 2007

Oguchigawa-2/3
Location: Toyama
Operator: Hokuriku Electric Power Co
Configuration: 46 MW
Operation: 1929-1938
T/G supplier: Hitachi, Toshiba
Quick facts: This dam is on the Oguchi River.

Photograph by Qurren (wikimedia)
Posted 27 Oct 2007

Omata
Location: Toyama
Operator: Hokuriku Electric Power Co
Configuration: 1 X 3.35 MW bulb, 1 X 30 MW Francis
Operation: 1960-1962
T/G supplier: Fuji
Quick facts: This dam is on the Oguchi River.

Photograph by 河川一等兵 (wikimedia)
Posted 27 Oct 2007

Shin Yanagahara
Location: Toyama
Operator: Kansai Electric Power Co
Configuration: 1 X 41.2 MW Francis
Operation: 1993
T/G supplier: MHI
Quick facts: The original Yanagahara HPP was completed in 1928 by Nihon Denryoku Ltd. At 54 MW, it was the largest hydro plant in Japan at the time. The plant passed to Kansai Electric and was closed just before Shin Yanagahara opened.

Photograph by Qurren (wikimedia)
Posted 2 Nov 2015

Unazuki
Location: Toyama
Operator: Kansai Electric Power Co
Configuration: 1 X 20-MW Kaplan
Operation: 2000
T/G supplier: ??
Quick facts: This unit went online in May 2000.

Photograph by Qurren (wikimedia)
Posted 2 Nov 2015

Abbreviations

Data: industcards, Platts UDI World Electric Power Plants Data Base

Updated 02-Nov-2015

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