hydro-china


Banduo Location: Qinghai Operator: Huanghe Hydropower Development Co Ltd Configuration: 3 X 120 MW Kaplan Operation: 2010-20111 T/G supplier: Zhejiang Fuchunjiang, Harbin EPC: NWH, Sinohydro Quick facts: The Banduo site is 70km downstream the Huanghe from Longyangxia at about 3,000m elevation. Construction started 8 Aug 2007 and Unit-1 passed its 168hr trial run on 23 Nov 2010. Photograph courtesy of Huanghe Hydropower Development Co Ltd Posted 11 Jun 2011	Gongboxia Location: Qinghai Operator: Huanghe Hydropower Development Co Ltd Configuration: 5 X 300 MW Francis Operation: 2004-2006 T/G supplier: Harbin EPC: China National Water Resources and Hydropower Engineering Corp, China Gezhouba Group, Fourth Engineering Corp of Northwest Power Construction Quick facts: In late 1999, the government gave the go-ahead for this plant on the upper Yellow River about 150km from Xining. The $795mn investment was made by 10 different companies at the national and provincial levels. Construction got underway in Aug 2001 and the first set went online in Sep 2004. The power project is a component of the West-to-East Power Transmission Project and Unit-1 put China’s installed hydropower base over 100 GW for the first time. The main hydraulic structures include a 133m reinforced concrete-faced, rock-filled dam, right-bank diversion system, left-bank spillway, and two discharge tunnels. The diversion power generation system includes a 300m-long-diversion channel, 49 to 58m high-gravity dam intake, and five 8m diameter steel penstocks. Photograph courtesy of Huanghe Hydropower Development Co Ltd Re-posted 21 May 2011	Jishixia Location: Qinghai Operator: Huanghe Hydropower Development Co Ltd Configuration: 3 X 340 MW Francis Operation: 2010 T/G supplier: Voith, Dongfang EPC: Northwest Hydro Consulting Engineers Photograph courtesy of China Power Investment Corp Posted 26 Nov 2010

Kangyang Location: Qinghai Operator: Qinghai Hydropower (Group) Co Ltd Configuration: 7 X 40.75 MW Bulb Operation: 2007 T/G supplier: Harbin EPC: NWH, Sinohydro Quick facts: Kanyang is on the the Huanghe River and is part of the Lijiaxia cascade being 17km from that plant. Annual generation is about 992 GWh. Construction got underway in Jul 2003, river closure was in Oct 2005, and the fist set went online in May 2007. The main structure is 663m long and the dam reaches 36.5m. The plant cost RMB 1.64bn. Photograph courtesy of Sinohydro Posted 11 Jun 2011	Laxiwa Location: Qinghai Operator: Huanghe Hydropower Development Co Ltd Configuration: 6 X 711 MW Francis Operation: 2009-2010 T/G supplier: Voith EPC: Northwest Electric Power Design Institute, Sinohydro Quick facts: Laxiwa is the second cascade hydropower on the main stem Yellow River located 33km donwstream from Laxiwa and 73km upstream from Lijiaxia. Laxiwa is the largest hydro project in the Yellow River Basin and a key component of the West-East Electricity Transfer project moving electricity to the North China Power Network. Laxiwa has a concrete double-curvature arch dam, surface spillways, deep outlets, bottom outlets, large plunge pool, and underground powerhouse on the left bank. The maximum dam height is 250m and the crest length is 460m. Mean annual electricity generation is expected to be 10 TWh. The static investment is RMB 12.33bn and dynamic investment is RMB 14.781bn. Construction got underway in Oct 2001. River bed cutoff was at the beginning of 2004 and dam abutment excavation began in Sep 2004. The concrete cast of arch dam was stated on Apr 2006. The turbine order was placed in Aug 2004 and was the largest ever received by Voith Siemens HydroPower Generation Shanghai Ltd. The first two machines at Laxiwa commissioned in May 2009. Photograph courtesy of CPNN.com.cn Posted 30 May 2009	Lijiaxia Location: Qinghai Operator: Huanghe Hydropower Development Co Ltd Configuration: 4 X 408 MW Francis Operation: 1997-1999 T/G supplier: Dongfang EPC: China National Water Resources and Hydropower Engineering Corp Quick facts: On the Huang He River near Jianzha is the Lijiaxia hydroelectric plant in Jianzha and Hualong counties. The Rmb 5bn plant has a 165m dam. Project engineering and construction got underway in 1987. Photograph courtesy of North Water Transfer Project Co Ltd Posted 9 Jan 2011

Longyangxia Location: Qinghai Operator: Huanghe Hydropower Development Co Ltd Configuration: 4 X 320 MW Francis Operation: 1987-1989 T/G supplier: Dongfang EPC: China National Water Resources & Hydropower Engineering, Northwest Hydro Consulting Engineers Quick facts: This was the first large-scale hydro plant on the upper reaches of the Yellow River. Average power production is 6 TWh/yr.The site is on the border of Gonghe and Guinan counties, 1.5km from the Longyanxia Gorge inlet, and 147km from Xining. Construction began in Dec 1976 and reservoir impoundment began in Oct 1986. The first unit was put into operation in Oct 1987 and the fourth in Jun 1989. Site elevation is 2,650m. The 178m main dam has a crest length of 396m and is 80m wide at the base. The powerhouse is located 70m downstream from the dam toe. Photograph courtesy of Yellow River Conservancy Comm Posted 20 Nov 2003		Suzhi Location: Qinghai Operator: Huanghe Hydropower Development Co Ltd Configuration: 3 X 75 MW Francis Operation: 2005-2006 T/G supplier: Harbin EPC: Northwest Hydro Consulting Engineers Quick facts: Suzhi is on the Huanghe River 12km downstream of Gongboxia HPS and 150km from Xining City. The complex includes a 52m concrete dam and cost RMB 1.3bn. Suzhi is connected to the grid at 110kV and 330kV. Construction started on 1 Nov 2003 and the first unit went online on 30 Dec 2005. Photograph courtesy of Huanghe Hydropower Development Co Ltd Posted 12 Jun 2011