Japan’s Toshiba Corp. said Aug. 9 that its U.S. subsidiary in the thermal power generation business, Toshiba International Corp. (TIC), has won a major retrofit order from U.S.-based Burns & McDonnell Engineering.
The order is for the supply and installation of components for a steam turbine renewal and the winding of a generator stator coil for the Ottumwa coal plant in Iowa of Interstate Power and Light, which is a unit of Alliant Energy (NYSE: LNT).
All key equipment will be supplied by Toshiba Corp. TIC, as prime contractor, will start installation and winding work in September 2014 and the order will be completed by the end of 2014. The retrofit project will improve the output of the steam turbine by around 14%, Toshiba noted.
This is not the only work planned for Ottumwa. IPL is moving forward with a new scrubber and baghouse installation at the Ottumwa plant to be completed by 2014, said IPL in a July 13 filing at the Minnesota Public Utilities Commission.
Ottumwa is a single-unit, coal-fired baseload plant located in Chillicothe, Iowa. The unit began operation in 1981, has a nameplate rated capacity of 726 MW and is jointly owned with MidAmerican Energy. IPL is the operator of the plant and owns 387.12 MW of the total capacity.
For Ottumwa, IPL has gotten Iowa permit approval for construction of a new air quality control system (AQCS) that includes an activated carbon injection (ACI) system and pulse jet fabric filter (PJFF) baghouse that will reduce mercury emissions. IPL has selected Burns & McDonnell and Babcock & Wilcox to complete detailed engineering and begin fabrication and construction of the ACI system and baghouse in 2012. Commissioning is scheduled for 2014.
IPL also plans a Spray Dryer Absorber (SDA) flue gas desulfurization technology project at Ottumwa. IPL has selected Burns & McDonnell and Babcock & Wilcox to complete detailed engineering and begin fabrication and construction of the spray dryer absorber in 2012. Commissioning is scheduled for 2014.