If we have a solar system rated at 5 kW with a 100 V DC motor powering it, what is the current flowing through the system? Well, if we use our formula and substitute in the given values, we have 5 kW multiplied by 1,000, divided by 100, which gives us 50 A: I = (5 x 1,000) / . . If we have a solar system rated at 5 kW with a 100 V DC motor powering it, what is the current flowing through the system? Well, if we use our formula and substitute in the given values, we have 5 kW multiplied by 1,000, divided by 100, which gives us 50 A: I = (5 x 1,000) / . . An off-grid solar system's size depends on factors such as your daily energy consumption, local sunlight availability, chosen equipment, the appliances that you're trying to run, and system configuration. Energy (kWh) = Watts × Hours ÷ 1000. Tip: leave either Watts or kWh blank to solve for it. Add demand or fees separately if needed. If days is provided, monthly/annual will be estimated. Given your daily. . How Many Amps Does a 100-Watt Solar Panel Produce? A 100W solar panel produces about 3. A rooftop 5kW solar system requires around 25 - 35 square meters of roof space for installation. With the help of a 5kW solar power. . Solar Panel Calculator is an online tool used in electrical engineering to estimate the total power output, solar system output voltage and current when the number of solar panel units connected in series or parallel, panel efficiency, total area and total width.