The document summarizes characterization methods used at the CFV Solar Test Lab, including indoor and outdoor testing of photovoltaic modules. Indoor testing involves measuring temperature coefficients and performance matrices according to IEC standards. Outdoor testing also measures temperature coefficients and collects data to model performance. The lab aims to improve measurement uncertainty and reduce differences compared to other facilities. It is a joint venture located in Albuquerque, New Mexico that benefits from ideal weather conditions and research partnerships.