Serra Mazda (today a Hyundai dealership) is located in Trussville, Alabama. The dealership includes a showroom, offices, service bays, and a well-lit lot of new and used vehicles. A 12-month study by CHI Energy revealed that the dealership achieved kWh savings of 11% in the showroom, 14% for the parking lot and sign lighting, and 11.49% for the entire dealership.