Sweetwater Wind Farm is one of the largest wind farms or wind power plant in Texas.

Construction of the 585 MW wind power plant has proceeded in five stages, and some generating capacity is still being built.

Stage 1

Stage 2

Stage 3

Stage 4

Sweetwater stage 4 employs 135 Mitsubishi 1.0 megawatt wind turbines and 46 Siemens 2.3 megawatt turbines. Its output is being sold to San Antonio’s CPS Energy under a 20-year purchase agreement.

Catamount Energy Corp. has announced that its fourth U.S. wind project has been completed and attained full commercial operation on May 24.


Sweetwater 4, located in Nolan County, is a 240.8 megawatt project using a combination of Siemens and Mitsubishi wind turbines.


Sweetwater 4 is the fourth phase of the Sweetwater wind project, which totals 504.8 megawatts in operation today. The Sweetwater 4 wind project employs 135 Mitsubishi 1 megawatt turbines and 46 Siemens 2.3 megawatt turbines. Its output is being sold to San Antonio’s CPS Energy, a municipally owned energy company, under a long-term purchase agreement, according to Catamount.


Prior to the project’s commercial operation, Catamount Energy and its partner Babcock & Brown co-developed and constructed Sweetwater 4. Under the long-term ownership structure for Sweetwater 4, Catamount and Babcock will remain equity investors and co-managing members of the project. DKRW Energy LLC of Houston was the project originator and continues to co-develop the project.


“Sweetwater is one of the largest wind energy projects in America, and it will continue to expand,” says Joe Cofelice, president of Catamount. “We are happy to have co-developed and to own, along with our partners, this project that helps to address the need for economically and environmentally sound clean energy.”

Stage 5

Construction of Sweetwater stage 5 began in February 2007, with completion expected by December 2007. Using 35 Siemens turbines, Sweetwater 5 will have a capacity of 80 MW.