GBC serves utility and energy financing agency clients across the Northeast United States, providing services in EE program design, planning, benefit-cost analysis, engineering support, M&V, and 3rd party verification. Our solutions help improve building efficiency, optimize economic benefits, and fight climate change. Our staff includes professional engineers, certified energy managers, and LEED associates. GBC staff have more than 30+ years of aggregate experience in analyzing and designing of energy efficiency and renewable energy projects and programs.