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31.63 -0.01 | |
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Jul. 23, 2008, 4:00 p.m. EST Stock data is delayed 20 minutes |
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1st Quarter 2008 Conference Call Webcast Printable Webcast Slides  |
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OGE Energy Corp. and Electric Transmission America Announce Plan to Build 765 kV Lines in Western Oklahoma | |
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Commission approves OG&E ‘Quick Start’ program | |
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OG&E makes fans available to area agencies | |
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OG&E to Defer Higher Fuel Costs to Ease Impact on Customers | |
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OGE Energy Corp. Announces Resignation of CFO Jim Hatfield | |
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About the Program | |
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Wind Power Options and Added Costs | |
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FAQ's | |
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Benefits of Wind Power | |
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How Wind Turbines Work | |
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OG&E Wind Farms | |
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Useful Links | |
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Just for Kids | |
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How Wind Turbines Work
OG&E’s Centennial Wind Farm produces wind power from 80 wind turbines, and wind power purchased from
the Florida-based FPL Energy wind farm near Woodward, Okla., is produced by 34 turbines. The turbines,
manufactured by General Electric Co., are computer-controlled, operating in winds ranging from 7 to 55
mph, with peak performance from 25 to 55 mph. For safety, the turbines automatically shut down if wind
speeds exceed 55 mph. A shaft extending from the three rotating blades drives the generator, converting
mechanical motion into electric power. Electricity flows through high-capacity cables to a nearby
substation, where voltage is stepped up and delivered to the OG&E power grid. The
turbine blades, designed to catch the wind, are each 113 feet long and
rotate
18 to 22 times per minute The nacelle – a housing that encases the generator and connects to
the blades – automatically rotates to face the wind, no matter which
way it’s blowing. All
of this is mounted atop a tower, 212 feet above
the ground. The
generator produces 1,500 kilowatts from a blade-sweep area of about 15,000
square feet.
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