Thomas Adewumi University is proposing to have a 1MWp worth of Solar plant. This would be implemented in phases. The first phase of implementation is 200KWp. The system shall be grid connected with no back up for now. The right sizing of the PV module, DC and AC cable, DC combiner box with appropriate Circuit breakers and standard outdoor box, Inverter system, AC Combiner box with appropriate circuit breaker and AC changeover are used in designing the system.