EC Source (ECS), together with its engineering partners, is a nationally recognized full-service EPC program management entity focused on financing and deploying Extra High Voltage (EHV) electrical systems in North America.  ECS is staffed with recognized industry leaders in project planning and execution of large-scale electric transmission and substation projects, including full service environmental planning, procurement, and construction activities.

ECS is construction led, specializing in large fixed price, competitively bid EHV transmission line and substation projects, guaranteeing quality, performance, and schedule. ECS has offices nationwide.