Coal-Fired Plants in Missouri

Asbury Location: MO Operator: Empire District Electric Co Configuration: 1 X 200 MW, 1 X 20 MW Operation: 1970-1986 Fuel: subbituminous coal, TDF Boiler supplier: B&W T/G supplier: Westinghouse Quick facts: Although built as a mine-mouth plant, Asbury was converted to PRB coal in 1990. A single cyclone boiler supplies the main T/G set and a second T/G set added about 15 yrs after operation started. In 2002, operators began adding shredded tires to the fuel mix and these now account for about 2% of total fuel burn by weight. In the first three years of TDF consumption, the plant burned about 50mn lbs of TDF equivalent to 2.5mn tires making Asbury one of Power magazine's Top Plants in 2005. Photograph courtesy of Power Posted 20 Jun 2004	Hawthorn-5 Rebuild Location: MO Operator: Kansas City Power & Light Co Configuration: 1 X 565 MW Operation: 2001 Fuel: subbituminous coal, natural gas Boiler supplier: B&W T/G supplier: GE EPC: Burns & McDonnell, B&W, Hatch Quick facts: While offline for routine maintenance, the original boiler at Hawthorn-5 was destroyed by a natural-gas  explosion on 17 Feb 1999. The decision was made to repower the Unit-5 T/G set with a new boiler and new emissions control equipment and plans were in place by Aug 1999 to undertake the work. The project took 19mos from first concrete to completion using a boiler at Taiwan Power's Taichung plant as a reference. The project won a 2001 award from Power magazine. Photograph courtesy of Hatch Ltd Posted 10 Jun 2007	Iatan-1 Location: MO Operator: Kansas City Power & Light Configuration: 1 X 726 MW Operation: 1980 Fuel: subbituminous coal Boiler supplier: B&W T/G supplier: GE EPC: Black & Veatch, Daniel Quick facts: Iatan-1 is a coal-fired unit on a 3,000ac site on the Missouri River. It is jointly-owned by Kansas City Power & Light (70%), St Joseph Light & Power (18%) and Empire Dist Electric Co (12%). Design coal was PRB from Black Thunder mine 700mi away in Wyoming, then owned by ARCO Coal and for many years, the largest single mine in the USA. Iatan-1 construction started in May 1975 and the unit was commissioned in May 1980 at a cost of about $350mn. Iatan is the nickname of a great Otoe Chief who lived in the area around 1800. Photograph courtesy of Kansas City Power & Light Posted 4 Jan 2006
Iatan-2 Location: MO Operator: Kansas City Power & Light Configuration: 1 X 920 MW Operation: 2010 Fuel: subbituminous coal Boiler supplier: Alstom T/G supplier: Toshiba EPC: Burns & McDonnell, Kiewit Quick facts: This is the largest coal-fired generating unit built in the USA since Rockport-2 (1,300 MW) was commissioned in 1989. The design contract was issued In Dec 2005 and in-service testing on the supercritical unit was started in late July 2010 and completed on 26 Aug, Iatan-2 was dedicated on 7 Dec. The unit cost about $2bn and KCP&L owns 70% of the asset. The workforce peaked at 4,000 and permanent operating staff is about 100. Photograph courtesy of Power Re-posted 17 Aug 2011	John Twitty Location: MO Operator: Springfield City Utilities Configuration: 1 X 194 MW, 1 X 306 MW Operation: 1976-2011 Fuel: bituminous and subbituminous coal Boiler supplier: RS, FW T/G supplier: WH, Toshiba EPC: Burns & McDonnell, Stanley, Oscar J Boldt Construction, Cherne Contracting, Alberici Constructors Quick facts: In May 2011, the Southwest power station was renamed John Twitty Energy Center after John Twitty, a 20yr City Utilities employee and General Manager from 2002-2011. Unit-2 has a full suite of advance air pollution control equipment. Construction started in early 2003 and the unit was dedicated on 15 Nov 2010 at a cost of $697mn including IDC. Commercial operation was in Jan 2011. Named a Power magazine Top Plant in 2011. Photograph courtesy of Power Re-posted 16 Oct 2011	Laclede (Ashley Street) Location: MO Operator: Union Electric Light & Power Co Configuration: 6 MW of steam engines (original), later 2 X 2 MW, 4 X 5 MW, 1 X 10 MW, 2 X 20 MW steam sets Operation: ca 1901 (ret 1945) Fuel: coal Boiler supplier: ?? T/G supplier: GE Quick facts: Laclede was built in 1901 to supply electricity to the St. Louis World's Fair. The first prime movers were 2 X 1.5 MW and 3 X 3 MW Allis Chalmers steam engines with Westinghouse generators. The power generating component was closed in 1945 leaving only electrical works and the entire facility was decommissioned in 1978. Part of the original structure designed by Muran Russell & Garden is scheduled for adaptive reuse being located at the start of St Louis' Riverfront Trail. Photograph by Michael Davis Posted 8 Jan 2010
Montrose Location: MO Operator: Kansas City Power & Light Configuration: 3 X 188 MW Fuel: subbituminous coal Operation: 1958-1964 Boiler supplier: CE T/G supplier: GE, WH EPC: Ebasco Quick facts: Montrose was built as KCPL's first minemouth plant, but the station was switched to PRB coal from the original high-sulfur design coal when nearby surface mines were closed in 1987. The Missouri Department of Conservation leases and manages the Montrose Wildlife area of 3,600ac which comprises the bulk of the plant site. This was first set aside by KCPL in 1958. Montrose has a 1500ac cooling lake Photograph courtesy of Kansas City Power & Light Re-posted 9 May 2007	Rush Island Location: MO Operator: AmerenUE Configuration: 2 X 630 MW Operation: 1976-1977 Fuel: subbituminous coal Boiler supplier: CE T/G supplier: Westinghouse EPC: Bechtel Quick facts: In 2005, the plant burned 5.3mn tons of PRB coal and generated a record 9.4 TWh of electricity. The plant cost $356mn to build. In Apr 2006, Powerspan Corp and Ameren announced plans to pilot test a new mercury removal process at Rush Island. The Photochemical Oxidation (PCO™) system uses ultra-violet light to oxidize and remove mercury from coal-fired power plants. Photograph courtesy of AmerenUE Posted 29 Jul 2006	Sibley Location: MO Operator: KCP&L Greater Missouri Operations Configuration: 2 X 50 MW, 1 X 419 MW Operation: 1960-1969 Fuel: bituminous coal Boiler supplier: B&W T/G supplier: Westinghouse, GE EPC: Burns & McDonnell, Gilbert Associates Quick facts: KCPL has done extensive biomass test burns in the cyclone boiler of Unit-1 in partnership with Show Me Energy Cooperative. Unit-3 was retrofit with Fuel Tech's SNCR system. Photograph courtesy of Missouri Public Service Co Posted 25 Nov 2009
Sioux Location: MO Operator: AmerenUE Configuration: 2 X 550 MW Operation: 1967-1968 Fuel: bituminous and subbituminous coal Boiler supplier: B&W T/G supplier: GE EPC: UE&C Quick facts: In Apr 2002, Unit-2 hit its 246th day of operation, beating all existing records for cyclone boilers. In 1995/96, management began developing a fuel blending and real-control strategy to allow for online fuel blending of PRB and Midwest coals. The supercritical plant can also burn petroleum coke and up to 20,000 tons of tire chips per year, the equivalent of over 2.5mn discarded tires. Sioux cost $140mn to build. Photograph courtesy of AmerenUE Posted 29 Jul 2006		Thomas Hill Location: MO Operator: Associated Electric Coop Configuration: 1 X 180 MW, 1 X 303 MW, 1 X 670 MW Operation: 1966-1982 Fuel: subbituminous coal Boiler supplier: B&W T/G supplier: Westinghouse, GE EPC: Burns & McDonnell Quick facts: In the last 10 years, the plant has won a number of awards for economic efficiency and environmental improvements. Thomas Hill Lake is the centerpiece of a 5,000ac wildlife refuge run by the Missouri Department of Conservation. Photograph by Kiyo Komoda Posted 4 Jan 2003

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