Grid-Connected Self-Consumption Photovoltaic Solar Energy Production Design and Simulation Evaluation in Type II Climate Areas of Southeastern Philippines

Renewable energy production is urgently needed to sustain all sorts of life generations walking on this planet. This research designed an 18 kWh per day of grid-connected solar energy production with a backup system battery for self-consumption. The design is proposed in the Southeastern part of the Philippines (Eastern Mindanao), particularly a part with Type II Climate at a 10-degree tilt angle and zero degrees relative to the Azimuth. It is arranged in two strings of eight 360 Watts monocrystalline-silicon modules, two 3.6 kVA inverters, six parallel 54 Ampere-hour battery systems, and two 30 ampere capacity charge controllers. It was then simulated in the computer software PVSyst 7.2.12, resulting in a monthly average performance ratio of 0.811, which is relatively high relative to other designs and locations. Furthermore, 94.0 tons of carbon dioxide with a present value equal to Php 157,666.2 are prevented by the designed system for 252.074 megawatts-hours in its 30 years of power production. The designed system has an estimated 18.05% internal rate of return with a total social cost of carbon value of Php 236,501 of the 31m2 panel area.