| 词条 | Kazunogawa Pumped Storage Power Station |
| 释义 |
| name = Kazunogawa Pumped Storage Power Station | name_official = | image = Kamihikawa Dam.jpg | image_caption = The upper Kamihikawa Dam | image_alt = | coordinates = {{coord|35|43|07|N|138|55|47|E|type:landmark|display=inline,title}} | country = Japan | location = Kōshū | status = O | construction_began = 1991 | commissioned = Unit 1: 1999 Unit 2: 2000 Unit 3: 2024 Unit 4: 2014 | decommissioned = | cost = $2.2 billion USD[1] | owner = TEPCO | operator = | psps_upper_res = Kamihikawa Reservoir | psps_upper_res_capacity = {{Convert|11470000|m3|acre.ft|abbr=on}}[2] | psps_lower_res =Kazunogawa Reservoir | psps_lower_res_capacity = {{Convert|11500000|m3|acre.ft|abbr=on}}[3] | psps_penstocks = | psps_pumpgenerators = 3 x {{convert|400|MW|abbr=on}} reversible Francis-type | psps_generators = | psps_pumps = | ps_units_manu_model = | psps_hydraulic_head = {{Convert|779|m|abbr=on}} (max) | ps_electrical_capacity = 1200 MW Planned: 1600 MW | ps_electrical_cap_fac = | website = | extra = }} The Kazunogawa Pumped Storage Power Station is a pumped-storage hydroelectric power station near Kōshū in Yamanashi Prefecture, Japan. The station is designed to have an installed capacity of {{convert|1600|MW}} and three of the four {{convert|400|MW}} generators are currently operational, for a total operational capacity of 1200 MW. Construction on the power station began in 1993 and the first generator was commissioned on 3 December 1999. The second was commissioned on 8 June 2000. The third on become operational on 9 June 2014, six year early due to post-power demand from the Great East Japan earthquake. The fourth and final generator is slate to be commissioned by 2024. It is owned by TEPCO and was constructed at a cost of $2.2 billion USD.[4][5] Design and operationThe upper reservoir for the power station is created by the Kamihikawa Dam at {{Coord|35|42|58|N|138|49|57|E|name=Kamihikawa Dam}} which is a {{Convert|87|m}} tall and {{Convert|494|m|adj=on}} long rock-fill embankment type. It has a fill volume of {{Convert|4110000|m3|cuyd}}. The upper reservoir's capacity is {{Convert|11470000|m3|acre.ft}} of which {{Convert|8300000|m3|acre.ft}} is active (or "useful) for power generation.[2] The lower reservoir is formed by the Kazunogawa Dam (葛野川ダム), which uses water from the Sagami River system. The Kazunogawa Dam is {{Convert|105.2|m}} tall and {{Convert|263.5|m}} long roller-compacted concrete gravity dam. It has a structural volume of {{Convert|622000|m3|cuyd}}. The lower reservoir's capacity is {{Convert|11500000|m3|acre.ft}} of which {{Convert|8300000|m3|acre.ft}} is active (or "useful) for pumping into the upper reservoir.[3] When energy demand is high, water from the upper reservoir is released down to the underground power station via a single {{Convert|3.3|km}} long headrace tunnel which splits into two {{Convert|1.8|km}} tunnels before each separate into two {{Convert|620|m}} long penstocks. Each penstock feeds a single reversible 400 MW Francis turbine-generator with water before it is released into a {{Convert|3.3|km}} long tailrace tunnel which discharges into the lower reservoir. When energy demand is low and therefore inexpensive, the turbines reverse into pumps and send water from the lower reservoir back to the upper reservoir. The process is repeated when necessary to help balance electricity loads. The difference in elevation between the upper and lower reservoirs affords an effective hydraulic head of {{Convert|714|m}} and maximum of {{Convert|779|m}}.[1][6][7] See also{{stack|{{Portal|Japan|Water|Renewable energy}}}}
References{{Commons category|Kamihikawa Dam}}{{GeoGroupTemplate}}1. ^1 {{cite web|title=Kazunogawa Hydroelectric Power Plant, Japan|url=http://www.power-technology.com/projects/kazunogawa/|publisher=Power-Technology|accessdate=14 August 2011}} {{Dams in Yamanashi Prefecture}}2. ^1 {{cite web|title=Kamihikawa|url=http://damsite.m78.com/data/yamanasi/kamihikawa.html|publisher=DamSite|language=Japanese|accessdate=14 August 2011}} 3. ^1 {{cite web|title=Kazunogawa|url=http://damsite.m78.com/data/yamanasi/kazunogawa.html|publisher=DamSite|language=Japanese|accessdate=14 August 2011}} 4. ^{{cite web | url=http://www.tepco.co.jp/en/press/corp-com/release/betu14_e/images/140609e0101.pdf | title=Outline of Kazunogawa Hydroelectric Power Station | publisher=TEPCO | date=9 June 2014 | accessdate=14 July 2014}} 5. ^{{cite web | url=http://www.tepco.co.jp/en/press/corp-com/release/2014/1237874_5892.html | title=Commercial Operation Commencement of Unit 4, Kazunogawa Hydroelectric Power Station | publisher=TEPCO | date=9 June 2014 | accessdate=14 July 2014}} 6. ^{{cite web|last=Yoshikawa |first=Hiromichi |title=A Huge Pumped-Storage Hydroelectric Power Plant on the Kazuno River -Effective Head of 714 m- |url=http://www.jsce-int.org/civil_engineering/1997/A_Huge_Pumped/97jsce6.html |publisher=Musashi Institute of Technology |accessdate=14 August 2011 |deadurl=yes |archiveurl=https://web.archive.org/web/20110928221751/http://www.jsce-int.org/civil_engineering/1997/A_Huge_Pumped/97jsce6.html |archivedate=28 September 2011 |df= }} 7. ^{{cite web|title=Kazunogawa Pumped-storage Power Station |url=http://www.cjk3d.net/project/viewnews-703-proj.html |publisher=CKJ3D |accessdate=14 August 2011 |language=Japanese |date=23 August 2009 |deadurl=yes |archiveurl=https://web.archive.org/web/20120107205859/http://www.cjk3d.net/project/viewnews-703-proj.html |archivedate= 7 January 2012 |df= }} 8 : Dams completed in 1999|Energy infrastructure completed in 1999|Energy infrastructure completed in 2000|Energy infrastructure completed in 2014|Buildings and structures in Yamanashi Prefecture|Pumped-storage hydroelectric power stations in Japan|Underground power stations|1999 establishments in Japan |
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