Rupert Cogeneration Facility Glenns Ferry Cogeneration Facility Eastshore Energy Center Notrees Windpower Project Ocotillo Windpower Project Happy Jack Windpower Project » Location - Ector & Winkler Counties, Texas Tierra Energy is currently developing a new 300+ MW windpower facility located in Ector and Winkler Counties, Texas. Phase I of the project is expected to be operational in 2008.