Recent Projects

Sargent & Lundy performed engineering for Goldwind’s Shady Oaks 109.5 MW Wind Farm Project, which includes 68 1.5-MW and 3 2.5-MW Goldwind permanent magnet direct drive (PMDD) turbines. The project is located in Lee County in north central Illinois. Our scope of work included engineering and design of a 138-kV Interconnection Switchyard and a 138/34.5-kV Project Substation, coordination with ComEd and PJM for interconnection to the 138-kV transmission system. In addition, we are providing both on-site quality control surveillance for the substation construction and commissioning services. The project is scheduled to be in service by the end of 2011.

Sargent & Lundy performed engineering for the Trinity Hills Wind Farm project and the Sherbino Mesa II Wind Farm project, both located in Texas. Sargent & Lundy's scope for the 225-MW Trinity Hills project included the engineering and design of a 345/34.5 kV substation, the 34.5 kV underground collection system, and 3.5 miles of 345-kV transmission line. Our scope for 150-MW Sherbino Mesa II included the engineering and design of the 138/34.5 kV project substation, 138 kV junction switchyard, 34.5 kV overhead and underground collection system, and 10 miles of 138 kV transmission line. Engineering was initiated in August 2010 on Trinity Hills and October 2010 on Sherbino Mesa II. Engineering drawings for both projects were issued for construction in March 2011.

Sargent & Lundy performed engineering for the interconnection of the Horizon Wind Energy Twin Groves Wind Farm to the Commonwealth Edison transmission network. Our engineering and design included the 34.5/345 kV substation at the termination of the wind generator collection system, 16 miles of 345-kV transmission line, a 345 kV substation, a 3-breaker ring bus adjacent to the existing transmission line, and coordinating the interface of the protection and control systems. The project was constructed in two phases, each generating 200 MW of power. Phase II was completed at the end of 2007. The facility includes 267 wind turbine generators, with a rated capacity of 1.5-1.65 megawatts each.

Work has continued with Horizon Wind Energy for the interconnection of additional wind farms to various transmission networks. Services provided by Sargent & include transmission line and substation engineering & design, collection system engineering & design, material and equipment procurement support, and construction field services.

Sargent & Lundy has performed engineering for the interconnection of wind farms developed by Acciona and Iberdrola to the Commonwealth Edison transmission grid. Our scope of work included detailed engineering for 345-kV and 138-kV switchyards. Both of these projects were placed in service in 2009. Sargent & Lundy has also been providing support to BP Wind, Gestamp, and other wind energy developers with technical support for proposed transmission interconnections. Our services have included power system impact studies, preparation of interconnection applications, and interface with ISO representatives.