This paper focuses on the realization of advanced systems integration that has 540 KVA three-phase bidirectional inverter and 1863.68 kWh lithium-ion battery storage system at Florida Solar Energy Center (FSEC) with a partnership of University of Central Florida (UCF) and A.F. Mensah Inc. The purpose of this paper is to give the testing results and an overview of advanced systems integration on existing high-power state-of-art systems. It enables the reader to understand what to expect when considering to use of renewable energy with a battery energy storage system (BESS). After explaining each system, the real energy consumption and reduced energy consumption are demonstrated along with the battery testing results. The system’s reliability is also achieved at different power management scenarios which is also important for frequency regulation because the utility has access to the batteries, and they can be utilized during high-power demand in the area. As a result, these types of integrated systems promote the smart cities.