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Wind power in Ohio

Electricity from wind in one U.S. state

  • 5 min read
  • 4 chapters

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Through Watt and Equinox

History

Wind power in Ohio has a long (albeit discontinuous) history.

Brush's windmill dynamo

Charles F. Brush designed one of the world's earliest electricity-generating windmills in Cleveland, Ohio, in 1887–1888. His engineering company built the "windmill dynamo" at his home. It operated from 1886 until 1900. The Brush wind turbine had a rotor 56 feet (17 m) in diameter and was mounted on a 60-foot (18 m) tower, making it similar in size to some of the first commercial wind farm turbines of the 1980s. However, the machine was only rated at 12 kW; it turned relatively slowly since it had 144 blades. Brush used the connected dynamo either to charge a bank of batteries or to operate up to 100 incandescent light bulbs, three arc lamps, and various motors in his laboratory. The machine fell into disuse after 1900 when electricity became available from Cleveland's central stations, and was abandoned in 1908.

NASA Lewis MOD series

From 1974 to 1981, NASA's Glenn Research Center (then the Lewis Research Center) in Brook Park, Ohio, led the U.S. Wind Energy Program for large horizontal-axis wind turbines, designing a series of 13 experimental large horizontal-axis wind turbines. In conjunction with the United States Department of Energy, NASA developed and tested megawatt-class wind turbines. The program's goal was to develop the technology, and then turn it over to private industry. While none of the program's wind turbine designs saw mass commercialization, the tests generated valuable data and pioneered modern design concepts such as tubular towers and computer control of blade pitch and rotor yaw.

Most of the MOD-series wind turbines went to sites outside of Ohio, but the first unit, the MOD-0 operated at NASA's Plum Brook facility near Sandusky from 1975 to 1988. Initially, the wind turbine had a lattice tower, a 38.1m diameter two-bladed rotor mounted downwind from the tower, and a capacity of 100 kW. Lockheed Corporation manufactured aluminum rotor blades. The discovery of severe stress resulting from the rotor blades passing through the tower's wind shadow led to several redesigns. In 1979, NASA rebuilt the MOD-0 with an upwind rotor mounted on a teetering hub, with a steel spar reinforcing the blades. In 1982, a tubular tower replaced the lattice tower. Finally, in 1985 NASA tested a single-bladed rotor with a teetering hub. In 1981, two NASA Glenn engineers, Larry Viterna and Bob Corrigan, used the adjustable-pitch blade feature of the MOD-0 to invent an analytical method for calculating wind turbine output in high winds, which has since become widely used in the wind power industry as the Viterna method.

Wind turbine regulation

In 2014, the Ohio General Assembly passed HB 483. This codified a wind turbine setback of 1,125 feet (343 m) from the property line for significant wind farms. The change in wind turbine setbacks has discouraged investment in new wind farm development in Ohio.

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