Understanding Oklahoma’s Wind Energy Industry Dr. Shannon L. Ferrell Assistant Professor – Agricultural Law OSU Department of Agricultural Economics Photo source: Stephanie Buway
A sense of turbine scale Source: Paul Gipe, Wind Energy Basics (Chelsea Green Publishing Co., 1999)
Tower foundation preparation 21’ X 21’ X 17’ deep - 30 concrete trucks Source: Western Farmers Electric Cooperative
Tower staging Towers arrive at site (typically 3 sections per tower) 43.3 Tons 46.8 Tons 41.5 Tons Source: Western Farmers Electric Cooperative
(not permanently installed) Nacelle staging Dude 0.09 tons (not permanently installed) Nacelle 51 tons Rotor Hub 20 tons Source: Western Farmers Electric Cooperative
Turbine blades 115 feet long 9.5 tons Source: Western Farmers Electric Cooperative
Final configuration 328 ft. top of rotor disc 230 ft. hub height Apprx. 100 ft. min. ground clearance Source: Western Farmers Electric Cooperative