Cooperative Building Solutions completed construction on a new facility for Southeastern Illinois Electric Cooperative in Harrisburg, Illinois. This 70,000 sq. ft. facility stands on a 24.5-acre site, combining multiple regional offices into one centralized location. It includes a structural steel office building with brick and stone veneer and a 120-well geothermal system for heating and cooling the space, a pre-engineered metal building warehouse, a vehicle bay, and two detached material and vehicle storage buildings.