Sweetwater Substation
Sweetwater 4 Substation / SweetwaterTX
How do you connect a 135- megawatt wind farm to a 345kV transmission line?
The 345kV Sweetwater IV substation was constructed for Pattern Energy (formerly Babcock & Brown) in 2006. The substation was constructed to directly tie a 135-megawatt wind farm to a new 345kV transmission line that was constructed under the same contract as the substation. The high side of the yard was constructed to accommodate an additional 80.5-megawatt wind farm that was tied in shortly thereafter. The substation has two main power step-up transformers and associated 34.5kV bus and breakers with a manual intertie between the low side bus. The substation is also designed and constructed to control both wind farms’ reactive power compensation.

Facts And Figures

Delivery Methods

Engineer, Procure and Construct

The Team