Solar Panel Size Calculator

Solar Panel Size Calculator

A solar panel size calculator is a tool used to estimate the size of a solar panel system needed to generate a certain amount of energy. It takes into account various factors such as the location, available sunlight, energy usage, and the efficiency of the solar panel system.

Solar Panel Size Calculator: What Size Panel Do I Need?

Use our calculator to find out what size solar panel you need to charge your battery.

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Error: Select a battery type.
Optional: If left blank, we’ll use a default value of 50% DoD for lead acid batteries and 100% DoD for lithium batteries.
Error: Select a charge controller type.
You can use our peak sun hours calculator to find out how many peak sun hours your locations gets per day.
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Estimated solar panel size:
watts
Warning: We estimate that a solar power system with these parameters would have a maximum charge current of . Many battery manufacturers recommend a maximum charge current of for lead acid batteries with this capacity. To maximize your battery’s lifespan, consider using a smaller solar panel or a bigger battery. Or increase your desired charge time.
Warning: We estimate that a solar power system with these parameters would have a maximum charge current of . Many battery manufacturers recommend a maximum charge current of for lithium iron phosphate batteries with this capacity. To maximize your battery’s lifespan, consider using a smaller solar panel or a bigger battery. Or increase your desired charge time.
Error: We estimate that it is impossible to charge your battery this quickly. The typical absorption time for batteries is around hours, which is greater than (or equal to) your desired charge time. Increase your desired charge time and try again.