Nathpa Jhakri power plant
| Nathpa Jhakri power plant | ||
|---|---|---|
| location | ||
|
||
| Coordinates | 31 ° 33 ′ 51 ″ N , 77 ° 58 ′ 48 ″ E | |
| country |
 India
|
|
| place | Kinnaur District , Himachal Pradesh State | |
| Waters | Satluj | |
| power plant | ||
| owner | Satluj Jal Vidyut Nigam (SJVN) | |
| operator | SJVN | |
| construction time | 1994 to 2000 | |
| Start of operation | 2004 | |
| technology | ||
| Bottleneck performance | 1,500 megawatts | |
| Average height of fall |
428 m | |
| Expansion flow | 405 m³ / s | |
| Standard work capacity | 6,950 million kWh / year | |
| Turbines | Francis turbines 6 × 250 MW | |
| Others | ||
The Nathpa Jhakri Dam ( Hindi नाथपा झाकड़ी जलविद्युत परियोजना , English Nathpa Jhakri Hydro Electric Station ) is a hydropower plant on the Satluj in India in the district of Kinnaur , State of Himachal Pradesh . The city of Shimla is located approx. 80 km southwest of the power plant.
In 1987 the north of India was hit by an acute shortage of electricity and the Nathpa Jhakri power plant project was seen as the preferred option to expand generating capacity. A letter of intent for the project was signed in July 1991. The actual construction work started in July 1995 and was completed in July 2002. The power plant went into operation in May 2004. It was officially opened on May 28, 2005 by then Prime Minister Manmohan Singh . The power plant is owned by Satluj Jal Vidyut Nigam Limited (SJVN) and is also operated by SJVN.
Barrier structure
The barrier structure consists of a concrete gravity dam with a height of 62.5 (or 60, 60.5 or 67.5) m and a crown length of 155 or 185 m. The dam has five gates . A maximum of 5,660 m³ / s can be discharged via four of them, which corresponds to the design flood ; the probability of this event occurring has been determined to be once in 10,000 years.
On the left side of the dam is the inlet, from which the water is first led into four underground settling basins (length 525 m, width 16.31 m, height 27.5 m) before it is passed through a tunnel (length 27.395 km , Diameter 10.15 m) to the power plant. At the end of the tunnel there is a moated castle (height 296 or 301 m, diameter 24.50 or 21.6 m). Pressure pipelines then lead to the machine hall.
The sealing curtain extends to a depth of 45 m.
Reservoir
When fully blocked , the reservoir extends over an area of around 0.22 km² and holds 3.4 million m³.
power plant
The Nathpa Jhakri power plant has an installed capacity of 1,500 or 1,530 MW . The average annual production fluctuates with the water flow of the Satluj: in 2005 it was 4.053 billion kWh and in 2009 it was 7.017 billion kWh.
The 6 Francis turbines have a maximum output of 250 (or 255) MW each. You are in a cavern (length 222 m, width 49 m, height 20 m). The machines went online between October 2003 and March 2004. The turbines were supplied by Kværner and the generators by ABB and Siemens .
The fall height is 428 m. The maximum flow is 405 (or 400) m³ / s. After the water has passed the Nathpa Jhakri power plant, it is directed through another tunnel to the Rampur power plant .
Others
The total cost of the power plant amounted to 8,187 crore INR or 1.9 or 2 2,048,200,000 USD . The World Bank India granted in 1988 a loan of 485 million USD for the construction of the power plant.
See also
Remarks
- ↑ Deviating from this, Global Energy Observatory states the volume of the reservoir as 3.43 billion m³, although this is likely to be an error.
Individual evidence
- ↑ a b c d e Nathpa Jhakri HPS. Satluj Jal Vidyut Nigam (SJVN), accessed October 22, 2015 .
- ↑ a b c d e f IMPLEMENTATION COMPLETION REPORT (CPL-30240; SCL-3024A) Report No: 24899. (PDF 5.3 MB; p. 8 (2), p. 58 (52), p. 61 (55 )) Worldbank, September 25, 2002, accessed October 22, 2015 .
- ↑ a b c d e Nathpa Jhakri hydroelectric project. www.salini-impregilo.com, accessed on October 22, 2015 (English).
- ↑ a b c d e f g h Nathpa Jhakri Hydro Electric Project India. Global Energy Observatory, accessed October 22, 2015 .
- ↑ a b c d e f g h i j Nathpa - Jhakri Hydroelectric Project, Himachal Pradesh, India. (PDF 508 KB; p. 8 (2), p. 58 (52)) (No longer available online.) Www.portal.gsi.gov.in, archived from the original on October 2, 2011 ; accessed on October 22, 2015 (English). Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ a b c d e A PRESENTATIION ON DIISRUPTIION OF POWER GENERATIION DUE TO NATURAL DIISASTERS - EXPERIIENCE OF 6 X 250 MW NATHPA JHAKRII HYDRO POWER STATIION OF SJVN LIIMIITED. (PDF 2.7 MB) (No longer available online.) Nidm.gov.in, archived from the original on March 4, 2016 ; accessed on October 22, 2015 (English). Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ a b c d Nathpa Jhakri, India. www.power-technology.com, accessed on October 22, 2015 (English).
- ↑ a b c A boost for hydro. www.waterpowermagazine.com, August 27, 2004, accessed July 28, 2015 .
- ^ Nathpa Jhakri Power Project. Worldbank , accessed October 22, 2015 .
