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PPL Montana Plans Expansion Of Rainbow Hydro Plant Near Great Falls

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by Staff Writers
Helena MT (SPX) Feb 27, 2008
PPL Montana plans to nearly double the amount of clean, renewable electricity produced at its Rainbow hydroelectric plant on the Missouri River near Great Falls by constructing a new powerhouse with a 60-megawatt turbine that has an improved, fish-friendly design.

"The redevelopment of our Rainbow hydroelectric plant will add renewable energy in an environmentally friendly way and help meet the region's need for new sources of clean, reliable electricity generation," said Brad Spencer, PPL Montana's vice president and chief operating officer. "It's part of our ongoing commitment to make sound financial investments, while operating our generating plants safely and in an environmentally sensitive way."

Starting in spring 2009, PPL Montana will begin construction of a new powerhouse. All eight of the smaller existing units at Rainbow Dam, which have a combined capacity of 35 megawatts, will be eventually replaced with a single 60 megawatt unit -- big enough to power approximately 45,000 homes.

The new larger turbine offers a significantly more fish-friendly design than the current small turbine configuration, including wider flow passages, fewer rotating surfaces and improvements to the turbine intake screens.

"PPL Montana works closely with state and federal fish and wildlife agencies and takes its responsibility seriously for protecting the valuable fisheries resources on the Missouri and Madison rivers," Spencer said.

As part of the project, a new powerhouse will be built on the hillside about 200 feet downstream of the existing powerhouse, which will be shut down upon completion of the project.

Subject to receiving federal, state and local approvals, construction would begin the first quarter of 2009 and the facility is targeted to be in service by spring of 2011. The redevelopment is part of PPL Montana's Project 2188 license with Federal Energy Regulatory Commission.

This clean, renewable energy would be a significant addition to the region's renewable generation capacity, and highlights PPL's ongoing significant commitment to renewable energy development.

Rainbow Dam, located between PPL Montana's Black Eagle and Cochrane dams, began operation in 1910. It is one of eight hydroelectric plants and one reservoir along the Missouri and Madison rivers covered under PPL Montana's Project 2188 federal operating license. Through this license, PPL Montana works with state and federal agencies and the public to implement a diverse array of resource and recreational stewardship projects on or near the banks of the Missouri and Madison rivers.

PPL Montana also operates the Black Eagle, Cochrane, Ryan and Morony dams on the Missouri River near Great Falls.

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Four million without power in Florida
Miami (AFP) Feb 26, 2008
Some four million people were without power across southern Florida on Tuesday after reactors went down at a nuclear power plant, US media and police said on Tuesday.







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