An Analysis Efficiency of the Roof Photovoltaic Array for Tilth in Nongpling Sub-district Mueang District Nakhonsawan Province

Abstract

This research was designed to test the efficiency of the Roof Photovoltaic Array for Tilth, as well as analyzed the energy consumption and economic viability of the Roof Photovoltaic Array. The 10 Modules of 280-watt solar cell installed capacity of 2.8 kWh. The roof photovoltaic Array has 1 meter of width and 10 meters in length. The power of pumping water is 3 horse power (HP) that installed a submersible pump 55 meters in depth and pump to a 6,336-litre storage tank 28 meters in high. The solar cell also provides power to sprinkle plant for 5 rais by installing 1.5 HP pump. The sprinkler system containing 210 sprinkler head is 6 rows are 35 head per rows. The result of the experiment, the average solar irradiance is 844.27 W/m² on 27-29 Jan 2017. The average efficiency of producing electricity via the roof photovoltaic array is 0.23 on 27-29 Jan 2017. The average energy consumption reduced per day of the Roof Photovoltaic Array was 16.416 kWh on 27 Jan 2017, 16.731 kWh on 28 Jan 2017 and 17.145 kWh on 29 Jan 2017. The electricity saves cost is 51.21 baht per day. The payback period of the Roof Photovoltaic Array for Tilth is 5.35 years.