Koradi Thermal Power Station

Koradi Thermal Power Station
Location of Koradi Thermal Power Station in Maharashtra
Country India
Location Koradi near Nagpur, Maharashtra
Coordinates 21°14′56″N 79°5′56″E / 21.24889°N 79.09889°E / 21.24889; 79.09889Coordinates: 21°14′56″N 79°5′56″E / 21.24889°N 79.09889°E / 21.24889; 79.09889
Commission date 6 June 1974[1]
Owner(s) Mahagenco
Thermal power station
Primary fuel Coal
Type Closed cycle with cooling tower.
Cooling source Balancing Tank
Power generation
Units operational Zamech ELBLAG, Poland and BHEL manufactured
Nameplate capacity 1700 MW
Source: Mahagenco[2]

Koradi Thermal Power Station (KTPS) is located at Koradi near Nagpur, Maharashtra. The power plant is one of the four major power plants in Vidarbha – a power surplus region of India.[3] The power station began operations in 1974 and is one of the nine active power stations operated by Maharashtra State Power Generation Company Limited (Mahagenco), a subsidiary of Government of Maharashtra owned Maharashtra State Electricity Board (MSEB).[4] The plant operates 8 units and has a total power generation capacity of 1700 MW.[1] A proposed 440 kilovolt high power transmission line from Koradi to Bhusawal would join Nagpur with Mumbai.[5] KTPS campus also contains training institute of MahaGenco for middle and senior level engineers, technicians and other staff.[6]

Power station

KTPS is located on the northern side of Nagpur and is spread across an area of 30,337 km2. Coal for KTPS comes from various nearby collieries of Western Coalfields Limited (WCL) located at Silewara, Pipla, Patansavangi, Kamptee, Inder, Walni, Gondegaon and Saoner. These are at an average distance of 10 kilometres (6.2 mi) away. The plant approximately requires 16,000 to 17,000 tonnes of coal per day.[2]

Map of Nagpur district showing Koradi

The water for KTPS comes from water reservoir of nearby Totaladoh hydroelectric power station.[7] Also, Nagpur Municipal Corporation (NMC) provides treated water from its sewerage treatment plant.[8] According to MSEB, the average unit cost of power generation at KTPS is 6.28 paise/kWh at 70 percent load factor while it is 13.52 paise/kWh at 25 percent load factor. The average cost for transmitting this power to Mumbai is 1.26 paise/kWh.[9]

Since its commissioning, KTPS saw expansion in stages. First unit of 115 MW began in 1974. Later, three more units each of 115 MW, were added between 1975 and 1976 while 200 MW unit was added in 1978. Two more units, of 210 MW each, between 1982 and 1983.[1] MSEB has finalized further expansion by increasing the capacity of 3 units to 660 MW thereby taking the total capacity of KTPS to 1560 MW. The work is expected to finish by 2014.[10] Bharat Heavy Electricals Limited (BHEL) is expected to get equity participation by supplying important equipments in the ₹80 billion (US$1.2 billion) expansion plan.[11]

In order to reduce air pollution the plant's units are equipped with electrostatic precipitators.[12]

Capacity

Stage Unit Number Capacity (MW) Date of Commissioning Status
Stage 1 1 115 1974 June Not Running
Stage 1 2 115 1975 MarchNot Running
Stage 1 3 115 1976 MarchNot Running
Stage 1 4 115 1976 July Not Running
Stage 2 5 200 1978 JulyRunning
Stage 3 6 210 1982 MarchRunning
Stage 3 7 210 1983 JanuaryRunning
Stage 4 8 660 16/12/2015 Running
Stage 4 9 660 Under development
Stage 4 10 660 Under development
Total Ten 2600

MAHAGENCO has already decided to close Unit 5 and 6 and eventually also stop unit 7. All these units are more than 30 years old and prodciung with poor load factor.

Thermal Power Research Center

The Central Power Research Institute (CPRI) of Government of India, which serves as regulating body for testing of instruments and uploading of licenses in India, is going to set up a Thermal Research Centre (TRC) at Koradi. However, the KTPS expansion plans have created a problems in land acquisition for TRC.[13]

Disruptions

On February 27, 2005, a major fire broke out at KTPS and had to be shut down causing blackouts in most districts of Marathawada.[14] In May 2007, the power plant was shut down due a strike by workers.[15]

References

  1. 1 2 3 "Koradi Thermal Power Station". Government of Maharashtra. Maharashtra State Power Generation Company Limited. Archived from the original on 7 November 2009. Retrieved 2009-01-05.
  2. 1 2 "Koradi Power Station: Details at a glance" (PDF). Government of Maharashtra. Maharashtra State Electricity Board. 2005. Retrieved 2009-01-05.
  3. ↑ "Coal-rich Vidarbha can make Maharashtra power surplus". Retrieved 20 April 2015.
  4. ↑ "Index of power stations". Government of Maharashtra. Maharashtra State Power Generation Company Limited. Retrieved 2009-01-05.
  5. ↑ Electrical Power System Design. Retrieved 20 April 2015.
  6. ↑ "Koradi Training Centre". Government of Maharashtra. Retrieved 2009-01-05.
  7. ↑ Vijay P. Singh; Ram Narayan Yadava (2003). Water Resources System Operation. Allied Publishers. p. 147. ISBN 978-81-7764-548-4.
  8. ↑ "Mahagenco to give Rs 15cr to NMC for waste water project". The Times of India. Retrieved 20 April 2015.
  9. ↑ "The Report Of The Krishna Water Disputes Tribunal With The Decision" (PDF). Krishna Water Disputes Tribunal. Department of Irrigation, Government of Andhra Pradesh. 1973. pp. 142;461. Retrieved 2009-01-05.
  10. ↑ "Ongoing projects" (PDF). Maharashtra State Electricity Board. Maharashtra State Power Generation Company Limited. Retrieved 2009-01-05.
  11. ↑ "BHEL may take equity in Koradi power plant". The Hindu Business Line. Retrieved 20 April 2015.
  12. ↑ "Assessment of requirement of Bag filter vis a vis Electrostatic Precipitator in Thermal Power Plants" (PDF). Ministry of Environment & Forests, Govt. of India. Central Pollution Control Board. 2007. Retrieved 2009-01-05.
  13. ↑ "Proposed expansion of KTPS may cost TRC to Vidarbha". Hitavada. 5 June 2008. Retrieved 2009-01-05. |first1= missing |last1= in Authors list (help)
  14. ↑ "Blackout". The Hindu. 28 February 2005. Retrieved 2009-01-05.
  15. ↑ "Koradi thermal power station generation stops.". Press Trust of India. 24 May 2007. Retrieved 2009-01-05.

Mahagenco has sought permission from Maharashtra Electricity Regulatory Commission (MERC) to close down unit 5 and 6 of Koradi (200 MW and 210 MW). Genco wants to shut 1,040MW generation Ashish Roy | TNN | Jul 4, 2014

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