Integrated Solar PV SystemPuckett Engineering engineered the power distribution for a design/build solar project (Integrated Solar provided installation) to deliver 42kW of AC power to the utility grid. The array, consisting of 180 photovoltaic panels, produces 3-phase AC power via a network of string and micro-inverters. The power generated from the solar array is purchased through credits by the Tennessee Valley Authority (TVA) under TVA’s Green Power Switch Program, a production-based incentive program. To maximize return on investment while minimizing life cycle costs, a monitoring system was installed for the micro-inverter system. PDF Case Study.