Step 1: Determine your solar array size in kW and enter it into the calculator below.
Step 2: Decide which solar panels you want to use, and enter the DC Watt rating of the specific solar panel model you want to use into the calculator below.
Example: Suntech STP210-18/Ub-1 are rated at 210 DC Watts. Sunpower 230-WHT are rated 230 DC Watts.
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How Many Solar Panels Do I Need? | SRoeCo Solar