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Dedication Ceremonies Set for Heat Recovery Projects

Bismarck, N.D. - Dedication ceremonies will be held Oct. 16 and 17 in North Dakota and South Dakota, respectively, for four new power plants that are "fueled" by hot exhaust. The plants have a total generating capacity of about 22 megawatts (MW). Basin Electric purchases the electricity produced by the project and integrates it with its other generating facilities.

The North Dakota ceremony will be held at 2 p.m. Oct. 16 at the St. Anthony site five miles south of St. Anthony, N.D., on ND Highway 6, and seven miles east on Morton County Road 135. Signs will be posted.

The South Dakota ceremony will be held at 2 p.m. Oct. 17 at the Pembrook site located 13 miles west of Aberdeen on U.S. Highway 12, then six miles north on County Road 15.

Each dedication ceremony will featured a short program of speakers representing Basin Electric, Ormat, Northern Border Pipeline and area electric cooperatives. Tours of the facilities will be available after the ceremony. Coffee, cake and refreshments will also be served.

The power plant equipment for the heat recovery projects was installed and is owned and operated by Ormat, headquartered in Reno, Nev. Basin Electric purchases the electricity under terms of a purchase power agreement with an Ormat subsidiary.

Besides the plants located near St. Anthony and Aberdeen, two others are the Woodland site, located near Clark, and the Hidewood site located near Estelline in South Dakota.

Ron Rebenitsch, Basin Electric's manager of member marketing, said the project involves using the hot exhaust gases from existing compressor stations located along the Northern Border Pipeline to generate electricity. The compressors are driven by natural gas-fueled turbines. "The heat in the compressor exhaust stack is recovered using heat exchangers. The recovered heat is then used to vaporize a fluid to drive a turbine/generator set," he said. "The exhaust temperature is about 900 degrees F." The Northern Border Pipeline travels in a southeasterly direction across North Dakota and South Dakota as it carries natural gas from Canada to the Chicago area.

Rebenitsch said each site has a generating capacity of about 5.5 MW, which is enough capacity to serve the electrical needs of about 5,000 average residential homes. He said the projects will have minimal environmental impact, with the electric generation considered to have "zero or near zero" emissions. "We consider these plants to be equivalent to renewable energy, given their minimal environmental impact," he said. "The new generators are considered to be base load generation, meaning they'll run almost continuously."

More than 15 miles of 69-kilovolt (kV) transmission line and substation interconnections were constructed to distribute the power from the generators to Basin Electric's members, Rebenitsch said. The lines were constructed and owned by Basin Electric's members, East River Electric Power Cooperative, Madison, S.D., and Mor-Gran-Sou Electric Cooperative, Flasher, N.D. The ability to interconnect with these members was an essential element of the projects, he said.

Rebenitsch said the new generators are considered to be base load generation, meaning they'll run almost continuously. Ormat has electricity producing installations on every continent in the world, including an installation near Gold Creek, Alberta, Canada, similar to what was be built for Basin Electric.

The project will be an integral part of Basin Electric's generating family that includes two coal-based power plants in North Dakota - the Antelope Valley Station, Beulah, and the Leland Olds Station, Stanton; a coal-based power plant in Wyoming - the Laramie River Station, Wheatland; an oil-based peaking station - the Spirit Mound Station, Vermillion, S.D.; two natural-gas fueled peaking stations, one near Spencer, Iowa, the other near Groton, S.D.; nine combustion-turbine generators (natural gas) in the Gillette, Wyo., area; four wind turbines - two near Minot, N.D., and two near Chamberlain, S.D.; and three wind farms owned and operated by FPL Energy, Juno Beach, Fla. Basin Electric purchases the production from them. Two are in North Dakota located near Edgeley/Kulm, and Wilton; the third is near Highmore, S.D.

Basin Electric is a consumer-owned, regional cooperative headquartered in Bismarck. It generates and transmits electricity to 120 member rural electric systems in nine states: Colorado, Iowa, Minnesota, Montana, Nebraska, New Mexico, North Dakota, South Dakota and Wyoming. These member systems distribute electricity to about 1.8 million consumers.

Ormat Technologies, Inc. (NYSE: ORA) is a vertically integrated company primarily engaged in the geothermal and recovered energy power business. The Company designs, develops, builds, owns and operates geothermal and recovered energy-based power plants. Additionally, the Company designs, manufactures and sells geothermal and recovered energy power units and other power generating equipment, and provides related services. Ormat products and systems are covered by more than 70 patents. Ormat currently has operations in the United States, Israel, the Philippines, Guatemala, Kenya, and Nicaragua.

Northern Border Pipeline Company is a general partnership that owns and operates a 1,249-mile interstate pipeline that transported approximately 22 percent of all Canadian gas imported into the United States in 2005. The partners are a subsidiary of ONEOK Partners, L.P., which operates the pipeline through an affiliate, and TC PipeLines, LP, with each owning a 50 percent general partner interest. A subsidiary of ONEOK, Inc. (NYSE: OKE) is general partner of ONEOK Partners, L.P. and, along with its subsidiary, collectively owns 45.7 percent of ONEOK Partners, L.P. TC PipeLines, LP is ,managed by its general partner, TC PipeLines GP, Inc., an indirect, wholly-owned subsidiary of TransCanada Corporation.

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For more information on items in this section contact Ann Foster, IAEC Director of Communications, 515-727-8945 or afoster@iowarec.org.

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