If one solar panel produces 500 W and your area gets five peak sunlight hours, the equation would be 500 W × 5 hours. This makes the answer to the question “how much electricity a solar panel can produce in one day” a simple 2,500 watts.. Estimates the energy production of grid-connected photovoltaic (PV) energy systems throughout the world. It allows homeowners, small building owners, installers and manufacturers to easily develop estimates of the performance of potential PV installations. Operated by the Alliance for Sustainable. . To calculate how much electricity a solar panel can produce in one day, you simply multiply the power output of your solar panels by the number of peak sun hours in your area.
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