Underground Construction

Wilson’s underground transmission team tackles unique project needs, from solid dielectric to high pressure fluid-filled cables, and has some of the most experienced personnel in the United States. Our specially fabricated cable-pulling equipment has helped install cable through 345kV from coast to coast, reliably.

Calpine Corporation

Los Medanos Energy Center/Delta Energy Center OSBL Electrical Underground and Overhead Transmission Lines, CA
This fast-track EPC contract included the 115kV and 230kV transmission lines interconnect for the Los Medanos Energy Center (LMEC) and Delta Energy Center (DEC). Both the LMEC (500MW) and the…

ENMAX Corporation

Substation No. 2 Upgrade Project, Canada
Wilson's upgrade of the ENMAX substation near Calgary included installation services for a 138kV cable system. The Gas Insulated Substation (GIS) building provided unique challenges due to limited space.

NV Energy

Sinatra 230kV Loop In Underground Project, NV
NV Energy awarded Wilson the Sinatra 230kV Loop-In Project located in Las Vegas, NV. The project consisted of one mile of two double circuit duct banks, eight transmission vaults, 12…

Raytheon / Sithe Energies

US Mystic Station 345kV and 115kV and Fore River Station 115kV Projects, MA
This project involved the high voltage interconnect for two power plants in the Boston, Massachusetts area. The Mystic Station is a 1600MW plant with two interconnect voltages. The first included…