Self-contained solar pv-diesel hybrid microgrid with storage

The aim of our research was to develop a microgrid model capable of electrifying isolated sites in the DRC. Based on our research we can say that the model developed is technically and economically viable. The PV solar field is the main source providing a significant portion of production with a share of 67.1% of total annual production or 173189 kWh/year compared with 32.9% from the diesel generator or 85093 kWh/year. Excess electricity production represents around 18.9% of total annual production i.e. 48863 kWh with a penetration rate of 55.1% for renewable energy. The cost per kWh of the architecture selected after optimization is 0.295$/ kWh or 590 Fc/ kWh with a payback time of 2.43 years. The present value of $240280 the equivalent annual cost of $3580 the return on investment of 20.4% the internal rate of return of 32.2% the discounted payback period of 2.56 years a positive net present value of $989701.40 show that the investment is profitable.