Top of Iowa 3 Wind Farm

Top of Iowa 3 Wind Farm

MGE began building its Top of Iowa 3 wind farm in Kensett, Iowa, in 2007. The 18 turbines began commercial production of wind power starting in February 2008.

Clean wind energy

  • Wind farm capacity: 29.7 MW
  • 96,984 MWH estimated annual production
  • saving about 107,458 tons of CO2 each year

Turbines

  • Manufacturer: Vestas
  • Model V-82
  • Capacity 1.65 MW per turbine
  • Assembled height with blade straight up: 400 feet  (height of WI State Capital building: 286 ft)
  • Built in Denmark and Spain

Turbine operation

  • Generates at 600Volts AC
  • Generator cuts in at 8 mph, cuts out at 45 mph
  • Blades rotate at a constant 14.4 RPM

Tower

  • Each tower has 4 sections
  • assembled tower weighs over 140 tons
  • 265 feet tall at the hub
  • Built in Shreveport, LA

Blades

  • Each blade is 135 feet long
  • Each blade weighs 8 tons
  • 270 feet rotor diameter
  • Built in Isle of Wight, UK

Land

  • 10 landowners host these turbines
  • Covers 1200 acres
  • Equipment and 3.5 miles of road use 10 acres of that

Miscellaneous

  • Turbines and blades transported by ocean freighter to Texas and from there by truck to Iowa.
  • Towers came by rail from Louisiana to Iowa.
  • Total project budget: 59 million dollars.