Tri-State Generation and Transmission Association has awarded a contract to Hitachi Power Systems America to design and supply a selective catalytic reduction (SCR) system including Hitachi’s proprietary catalyst for Tri-State’s Unit 2 at the Craig generation station in Colorado.

Hitachi Power Systems will design the SCR system using Hitachi’s proprietary catalyst, which offers high NOx removal efficiencies over a wide operating load range.

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Tri-State’s Craig generating station has three coal-fired generating units each with a capacity of 428MW. The power plant uses Colorado low-sulfur bituminous coal as primary fuel.

According to Hitachi, Tri-State will meet or exceed its NOx reduction requirements, while keeping sulfur trioxide emissions low, with the installation of its SCR system at Craig Unit 2.

"Tri-State will meet or exceed its NOx reduction requirements, while keeping sulfur trioxide emissions low."

Hitachi is designing the SCR system for continuous operation throughout the year.

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Hitachi Power Systems president and CEO Henry Bartoli noted the company is extremely pleased to have been selected by Tri-State to execute this project and looks forward to supporting Tri-State’s efforts to supply its customers with clean, efficient, low cost electricity.

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"This contract represents another important milestone in the deployment of Hitachi’s proven technologies to the US markets and further establishes HPSA’s important leadership position as an industry leader in the reduction of emissions from power generation facilities," Bartoli said.

Construction on Units 1 and 2 began in September 1974. Unit 2 was completed in November 1979, Unit 1 in 1981, and Unit 3 in 1984.

Approximately $700m was invested in the construction of Units 1 and 2, and $510m in Unit 3.

Energy