The Distributed Energy Resources Customer Adoption Model (DER-CAM) is a techno-economic model of customer DER adoption. Users input market information (fuel prices), system load information (hourly enduse loads), and DER technology information (costs, performance data, etc) and DER-CAM outputs the optimal selection of technologies, e.g. PV, solar thermal or CHP that should be adopted and details how they should be operated based on the specified inputs. Other outputs also include CO₂ emissions.