A 6- to 10-kW solar panel installation costs $12,600 to $31,500 after the 30% federal tax credit. *Total cost may be lower with additional state and local incentives. While that price tag seems steep, the electricity bill savings you get from solar panels make them a worthwhile investment for most Americans. Your actual cost depends on your home's energy needs, roof characteristics, location and other factors, all of which we'll break down in. . Average price of solar modules, expressed in US dollars per watt, adjusted for inflation. This typically translates to about $2. 50 per watt of installed capacity (more on price per watt below). Why trust EnergySage? If you've been putting off solar because of sticker shock, this might change your mind: Most homeowners save $37,000 to $154,000 over 25. .
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