Elm Energy Group is a local building performance company which uses the "House-as-a-System" or “whole-house” approach toward energy assessments and green energy modeling. Elm Energy Group is the Carolina's leader in building performance and green energy remodeling serving the Charlotte area as well as Hilton Head, Bluffton, Beaufort, and Savannah areas. Our experienced and certified BPI professionals, HERS raters and thermographers can help you accurately diagnose and solve problems in your building.