Gas Insulated Substations (GIS) and Hybrid Gas Insulated Substations are essential in the transmission of electrical energy to growing urban centers, where conventional air insulated substations can no longer meet the requirements of available space, pollution, safety, maintenance, and other expectations.

Since 1981, we have installed nearly 300 GIS breaker positions, rated from 121kV through 550kV, throughout North America. Our North American supply experience and project management know-how allow us to build, replace, upgrade, or interface directly with any existing substation with no constraints for voltage level or site conditions. With skilled engineers and designers dedicated exclusively to designing GIS projects, our customers benefit from high-quality and timely design of electrical, mechanical and civil/structural systems.