Substation ConstructionYour best interests are at the core of everything we do 

Delivering optimal,
turnkey substation solutions  

Great Southwestern has constructed hundreds of high-voltage substations, switching stations, gas-insulated switchgear (GIS), and interconnect stations ranging from 34.5kV to 500kV for public and private clients throughout the United States, and is skilled in performing substation work under EPC and construct-only methods of project delivery. We also construct static var compensation stations and stations requiring sophisticated dynamic var systems and capacitor bank systems and have specialized experience in nuclear facilities. 

Working side-by-side with our clients, we anticipate needs and deliver innovative solutions to ensure superior project execution. Our suite of turnkey electrical construction services includes project management support, material procurement and management, quality assurance/quality control (QA/QC), outstanding safety performance, testing and commissioning, and final job closeout.

Delivering innovation & security with expertise 

With the growing need for power grid compensation and stability, flexible AC transmission systems (FACTS), and high-voltage DC transmission (HVDC), technologies have become prominent components within the industrial and renewable EPC project market. Great Southwestern has professional, experienced staff and skilled craft teams who lead and complete a wide range of complex FACTS and HVDC projects nationwide. We believe that the technical complexities we have successfully implemented, position us as an innovative leader in both this sector and the offshore wind generation market. 

We work closely with clients to take a comprehensive approach to planning, executing, and commissioning every project. This collaboration has enabled us to build solid, long-standing partnerships with our valued clients.