Zero Net Energy Buildings (ZNEB) are gaining popularity, and many governments want commercial ZNEB status in a decade from now. This project uses the energy consumption data of California State University, Long Beach (CSULB) to design a ZNEB system for the CSULB-Alumni Center. The campus energy data is taken and averaged by considering the number of buildings. Various Energy Efficiency Measures (EEMs) such as scheduled operation of equipment and advanced lighting were considered in designing the ZNEB Alumni Center. The ZNEB System building design is in two different configurations: 1) A system with solar Photo Voltaic (PV); 2) A system with solar PV and a Battery Energy Storage System. The Hybrid Optimization Model for Electric Renewables (HOMER) software simulates the ZNEB Alumni Center. Two configurations are compared in terms of payback and Net Present Value (NPV). The system with the highest NPV and early payback is considered the optimal system.