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Conesville Power Plant: Difference between revisions

Coordinates: 40°11′04″N 81°52′32″W / 40.18444°N 81.87556°W / 40.18444; -81.87556
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==References==
==References==
{{reflist}}
{{reflist}}

==External links==
*[http://www.dplinc.com/about/corporate-overview/locations/conesville-station/ DP&L Page for Conesville Power Plant]


[[Category:Energy infrastructure completed in 1957]]
[[Category:Energy infrastructure completed in 1957]]

Revision as of 15:08, 28 June 2018

Conesville Power Plant
Conesville Power Plant in 2009
Map
CountryUnited States
LocationFranklin Township, Coshocton County, near Conesville, Ohio
Coordinates40°11′04″N 81°52′32″W / 40.18444°N 81.87556°W / 40.18444; -81.87556
StatusOperational
Commission dateUnit 1: 1957
Unit 2: 1959
Unit 3: 1962
Unit 4: 1973
Unit 5: 1976
Unit 6: 1978
Decommission dateUnit 1–2: 2005
Unit 3: 2012
OwnersAEP Generation Resources (94.3%)
AES Ohio Generation (5.7%)
OperatorAmerican Electric Power (AEP)
Thermal power station
Primary fuelCoal
Power generation
Nameplate capacity1,590 MW
External links
CommonsRelated media on Commons
[edit on Wikidata]

Conesville Power Plant is a 1.59-gigawatt (1,590 MW) coal power plant located east of Conesville, Ohio in Coshocton County, Ohio. Its two units are owned by American Electric Power (AEP) and a third unit is co-owned by AEP and Dayton Power & Light (DP&L). All plant operations are handled by AEP. Conesville began operations in 1957.

History

Construction of Unit 1 began in 1955 and was commissioned by Columbus & Southern Ohio Electric (a forerunner of AEP).[1] Unit 1 began commercial generation in 1957 while Unit 2 began operations two years later in 1959.[2] Both units cost $36 million to construct and generated 125 MW each.[3][4] Unit 3 began operations in 1962 with a generation capacity of 165 MW.[5] Unit 4 began operations in 1973 with a generation capacity of 780 MW.[6] At the time of its conception, the unit would be jointly owned by Cincinnati Gas and Electric (CG&E) (a forerunner of Duke Energy), Columbus & Southern Ohio Electric, and DP&L.[7] Units 5 and 6 began operations in 1976 and 1978 respectively.[8][9] Over the years, Units 5 and 6 have increased electrical generation from 375 MW to 405 MW.[8][10] In 2014, Duke Energy sold its stake in Conesville to Dynegy.[11] Three years later in 2017, Dynegy sold its stake in Conesville in a swap with AEP for a stake of William H. Zimmer Power Station.[12] DP&L continues to hold a minority ownership of Unit 4 with AEP.[6]

Environmental mitigation

With the installation of Unit 4, electrostatic precipitators (ESPs) were installed to prevent fly ash from going into the atmosphere. ESPs were later installed to Units 1-3 in the mid-1970s. Unit 4 also had cooling towers constructed which resulted in zero discharge into the Muskingum River.[13] In 2009, Unit 4 would receive the installation of flue-gas desulfurization (FGD) equipment and along with a selective catalytic reduction (SCR) system to meet the requirements of the Environmental Protection Agency's (EPA) Clean Air Interstate Rule (CAIR) and Clean Air Mercury Rule (CAMR).[14][15] The $450 million project for Unit 4, saw the construction of a 800 ft (240 m) smokestack for the FGD equipment.[16] After it was installed, inspectors found corrosion. AEP settled with Black & Veatch, the contractor who installed the FGD equipment, to address the corrosion.[17] When Units 5 and 6 went into operation, $52 million in scrubber technology were installed to reduce sulfur dioxide (SO2) emissions, but it operated inefficiently.[18][19] The scrubber was eventually upgraded in 2008.[15] In the summer of 2001, Unit 6 was the test site for Thermal Energy International's THERMALONOx.[20][21] The THERMALONOx was intended to show that nitrogen oxide (NOx) emissions would be reduced by 70%.[20] Unfortunately, the demonstration was halted in September 2001 after the "system did not appreciably reduce nitrogen oxide (NOx) emission levels."[21]

Operations

When the first unit went into operation, it was projected that Conesville would use between 300,000 to 400,000 short tons of coal each year.[1] According to the Energy Information Administration (EIA), the plant received 1,716,286 short tons of coal in 2017. All of the coal was shipped from mines within Ohio.[22]

Retirement

Units 1 and 2 were retired in 2005 after Unit 1's tubing to its boiler failed. Inspections on Unit 2 revealed severe corrosion in a pattern that was similar to Unit 1. The reported cost of $35 million to repair both units was not worth the benefit of returning to service.[3] Unit 3 was retired in December 2012 in order to comply with the Environmental Protect Agency (EPA) rules regarding mercury, lead, and other toxic emissions.[23][24]

Incidents

In February 1982, two protestors from Greenpeace climbed up one of Conesville Power Plant's smokestacks to protest against acid rain.[25] The protestors spent three days on top of the smokestack. They were charged with criminal trespass. The judge fined both protestors $250 and were sentenced to three days in jail.[26]

In July 2004, a tank exploded burning two workers. They would later die from their injuries.[27] AEP determined the cause was due to a sudden release of molten slag that overpressured the tank.[28]

See also

References

  1. ^ a b "Top Executives Tell of Conesville Power Plant". Coshocton Tribune. July 5, 1955. p. 6. Retrieved June 24, 2018 – via https://www.newspapers.com/. {{cite news}}: External link in |via= (help)
  2. ^ Hayhurst, Leonard (August 24, 2017). "AEP Conesville still fired up after 60 years". Coshocton Tribune. Retrieved June 18, 2018.
  3. ^ a b "2 units at AEP Conesville plant to be shuttered". Columbus Business First. October 3, 2005. Retrieved June 20, 2018.
  4. ^ "Conesville Power Plant Began Operating in 1958". Coshocton Tribune. August 20, 1961. p. 9. Retrieved June 26, 2018 – via https://www.newspapers.com/. {{cite news}}: External link in |via= (help)
  5. ^ Waitkus, Dave (January 7, 2013). "End of an era". American Electric Power (AEP). Retrieved June 26, 2018.
  6. ^ a b "Conesville Unit 4". DPL Inc. Retrieved June 21, 2018.
  7. ^ "Conesville power plant constructed". The Times Reporter. January 27, 1971. p. D-3. Retrieved June 24, 2018 – via https://www.newspapers.com/. {{cite news}}: External link in |via= (help)
  8. ^ a b "C&SOE Initiates Newest Electric Generating Unit". Coshocton Tribune. April 24, 1977. p. 8C. Retrieved June 26, 2018 – via https://www.newspapers.com/. {{cite news}}: External link in |via= (help)
  9. ^ "C&SOE's Leppla Met Challenge Of Past Winter". Coshocton Tribune. April 30, 1978. p. 2B. Retrieved June 26, 2018 – via https://www.newspapers.com/. {{cite news}}: External link in |via= (help)
  10. ^ Interconnection Service Agreement (PJM Queue #Y1-018) (PDF) (Report). PJM Interconnection. October 1, 2013. Retrieved June 26, 2018.
  11. ^ Savenije, Davide (August 22, 2014). "Dynegy to buy 12,500 MW for $6.25B". Utility Drive. Retrieved June 21, 2018.
  12. ^ Knox, Tom (February 24, 2017). "AEP, Dynegy swap Ohio power plant ownership". Columbus Business First. Retrieved June 21, 2018.
  13. ^ "Conesville Unit 4 Contributing To CSOE Operation". Coshocton Tribune. April 28, 1974. p. 18-A. Retrieved June 24, 2018 – via https://www.newspapers.com/. {{cite news}}: External link in |via= (help)
  14. ^ McHenry, Melissa (June 17, 2005). "AEP announces additional environmental investments at five plants in four states". AEP. Retrieved June 24, 2018.
  15. ^ a b McHenry, Melissa (January 17, 2008). "News Releases". AEP. Retrieved June 24, 2018.
  16. ^ Dickerson, Kathie (May 14, 2009). "New unit ready to go online". Coshocton Tribune. p. 1-A. Retrieved June 25, 2018 – via https://www.newspapers.com/. {{cite news}}: External link in |via= (help)
  17. ^ Hunt, Spencer (July 11, 2011). "Failing Pollution Scrubbers - 'Aggressive' decay eats at power plants". The Columbus Dispatch. p. 1A. Retrieved June 26, 2018 – via https://www.newsbank.com/. {{cite news}}: External link in |via= (help)
  18. ^ "Firm Awards Contract". The Times Recorder. October 15, 1975. p. 10-B. Retrieved June 24, 2018 – via https://www.newspapers.com/. {{cite news}}: External link in |via= (help)
  19. ^ "Governor Blasts Federal EPA". The Circleville Herald. Associated Press. June 5, 1978. p. 11. Retrieved June 24, 2018 – via https://www.newspapers.com/. {{cite news}}: External link in |via= (help)
  20. ^ a b "AEP to test nitrogen oxide control technology". Power Engineering. March 8, 2001. Retrieved June 25, 2018.
  21. ^ a b "THERMALONOx demonstration project at AEP's Conesville Plant suggests need for additional laboratory research". Power Engineering. September 28, 2001. Retrieved June 25, 2018.
  22. ^ "Coal Data Browser - Shipments to Conesville". Energy Information Administration (EIA). Retrieved June 18, 2018.
  23. ^ Dickerson, Kathie; Whiteman, Doug (June 10, 2011). "AEP may close six sites". Coshocton Tribune. p. 1A. Retrieved June 20, 2018 – via https://www.newspapers.com/. {{cite news}}: External link in |via= (help)
  24. ^ Dickerson, Kathie (January 13, 2013). "Conesville plant labeled as a top-5 metal polluter". Coshocton Tribune. p. 3A. Retrieved June 20, 2018 – via https://www.newspapers.com/. {{cite news}}: External link in |via= (help)
  25. ^ "Smokestack sitters extend vigil without any regrets". The Plain Dealer. The Associated Press. February 11, 1982. p. 17-A. Retrieved June 26, 2018 – via https://www.newsbank.com/. {{cite news}}: External link in |via= (help)
  26. ^ Weidner, Nolan (February 12, 1982). "Protestors Sentenced To Jail". Coshocton Tribune. p. 1. Retrieved June 26, 2018 – via https://www.newspapers.com/. {{cite news}}: External link in |via= (help)
  27. ^ "AEP Employee Dies 2 Weeks After Conesville Explosion". The Columbus Dispatch. July 29, 2004. p. 8C. Retrieved June 26, 2018 – via https://www.newsbank.com/. {{cite news}}: External link in |via= (help)
  28. ^ Douglas, Kristy (August 12, 2004). "AEP officials determine cause of fatal accident". The Times Reporter. Retrieved June 26, 2018 – via https://www.newsbank.com/. {{cite news}}: External link in |via= (help)
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