A standalone system at the USP Laucala campus supplies power to run forty 30 watts AC and sixty 4.5 watts DC LED lights
Posted: Sun Jul 03, 2022 12:08 pm
A standalone system at the USP Laucala campus supplies power to run forty 30 watts AC and sixty 4.5 watts DC LED lights for 10 hours daily. If a security of three no-sun days is required and peak-sun hours at the site is 3.5 hours, size the system in terms of batteries and solar panels. Use the following additional information: Inverter efficiency = 95% Battery DoD = 60 % Battery efficiency=90% Inverter input voltage = 48 V Battery rated capacity = 100 Ah, 12 Volts. Solar panel Suntech STP 280, Imp=7 A and Vmp = 35 V