South Dakota approves gas-fired plant

Deer Creek Station Power Plant earns PUC approval in South Dakota, a 300 MW combined-cycle natural gas facility by Basin Electric with pipeline infrastructure, wind integration capability, rapid ramping, and an environmental impact study pending.

South Dakota regulators approved two permits to allow Basin Electric Power Cooperative to build a $400 million gas-fired, combined-cycle power plant near Brookings.

The Public Utilities Commission's three members voted unanimously to approve the Deer Creek Station power plant, including the okay to link to the system, and a natural gas pipeline to bring fuel to the plant.

"This is $400 million worth of investment and 30 full-time jobs. It is a nice benefit that can accrue from building a safe, reliable and affordable energy supply," PUC Chairman Dusty Johnson said.

Basin Electric, based in Bismarck, North Dakota, still has an environmental impact study pending with a federal agency, while its CO2 capture project proceeds on a separate track.

The company hopes to begin construction in July and have the plant operating in 2012.

The plant, located about 12 miles east of Brookings in eastern South Dakota, could generate up to 300 megawatts of power, similar in scale to a regional 350 MW plant announced recently.

It would use natural gas to fire one turbine. Heat from the gas turbine's exhaust would be used to heat water and create steam to run the second turbine.

The permits approved include conditions negotiated by Basin Electric and the commission's staff. The hearing led by the PUC commissioners on the issue lasted only about a half hour because no one appeared at the meeting to oppose the project.

Basin Electric has addressed all issues raised by a review committee of area residents, said Elkton School Superintendent Tony Simons, a member of that local panel.

Basin Electric proposed the plant to meet growing demand from its member electric systems, as coal plant backers remain optimistic about future baseload options.

Commissioners said the plant could work in coordination with wind farms in the area. Project manager Gavin McCollam said the Deer Creek Station's power generation could be adjusted quickly according to the availability of wind-generated power.

In response to questions from the PUC, McCollam said the plant's use of natural gas should have little or no effect on the price of gas in the area.

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