Hitachi Power Systems America Ltd. (HPSA) said Feb. 11 that it has been awarded a contract for the design and supply of selective catalytic reduction (SCR) systems including Hitachi’s proprietary catalyst with Xcel Energy (NYSE: XEL) for the coal-fired Hayden Units 1 and 2, located in Routt County, Colo.
Terms of the deal were not disclosed. The contract includes the design and supply of SCR systems for Hayden Units 1 and 2, which have a net capacity of about 184 MW and 262 MW, respectively.
The Hayden plant fires Colorado low-sulfur bituminous coal as its primary fuel. A key supplier is Peabody Energy‘s (NYSE: BTU) Twentymile longwall mine, which will be replaced in the near future by Peabody’s planned Sage Creek longwall mine next door to Twentymile. A contract for continued supply to Hayden is underpinning that mine replacement project.
SCR systems cut NOx emissions. These SCRs will utilize Hitachi’s state-of-the-art catalyst, offering high NOx removal efficiencies over a wide operating load range. This leading edge technology will help Xcel Energy meet or exceed its NOx reduction requirements, while keeping SO3 emissions low, Hitachi noted. This highly reliable system is being designed for continuous operation throughout the year.
Henry Bartoli, president and CEO of HPSA, said: “We are extremely pleased to have been selected by Xcel Energy to execute this project and look forward to supporting Xcel Energy’s efforts to supply its customers with clean, efficient, low cost electricity. This contract represents another important milestone in the deployment of Hitachi’s proven technologies to the U.S. markets and further establishes HPSA’s important leadership position as an industry leader in the reduction of emissions from power generation facilities.”
Xcel Energy operates in Colorado through its Public Service Co. of Colorado subsidiary. The SCRs are part of the utility’s state-approved Clean Air-Clean Jobs Act program. In its October 2012 quarterly Form 10-Q filing, Xcel said that PSCo’s coal-based plan under that act as of Sept. 30, 2012, is:
- Cherokee Units 2 and 1 were shut down in 2011 and 2012, respectively, and Cherokee Unit 3 (365 MW in total) is expected to be shut down by the end of 2016, after a new natural gas combined‑cycle unit is built at Cherokee (569 MW);
- Cherokee Unit 2 was converted to a synchronous condenser to support the transmission system in 2012;
- Fuel‑switch Cherokee Unit 4 (352 MW) from coal to natural gas by 2017;
- Shutdown Arapahoe Unit 3 (45 MW) and Unit 4 (111 MW) in 2013;
- Shutdown Valmont Unit 5 (186 MW) in 2017;
- Install SCR and a scrubber for controlling SO2 on Pawnee in 2014; and
- Install SCRs on Hayden Unit 1 in 2015 and Hayden Unit 2 in 2016.
Hitachi Power Systems America, a wholly owned subsidiary of Hitachi America Ltd., is headquartered in Basking Ridge, N.J., and is a leading supplier of equipment and services for the power generation market including thermal, nuclear and hydroelectric facilities.