Next, figure out how many watts of solar energy are required to run 110V AC systems. This computation is based on a number of factors, including the system's power and the local potential solar irradiation. 500 to 1500 watts are often needed for a 110V AC system, depending on the equipment or device. First, determine the total daily energy use in watt-hours (Wh) to determine the required output of solar panels. For instance, you will need 5000 Wh per day for an item that uses 1000 W and runs for five hours per day. Next, determine how many solar panels you will need by dividing your daily energy consumption by the average number of peak sunlight hours in your area.
