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Substations & Switchyards

Great Southwestern has constructed numerous high-voltage substations, switch stations and interconnect stations nationwide from 34.5kV to 500kV for public and private clients.

Emergency Restoration

Great Southwestern has resources to perform storm restoration throughout the U.S. and we maintain annual storm contracts with clients.

Oil & Gas

Great Southwestern offers the expertise to construct transmission lines, distribution systems and substations for the oil and gas industry.