The volume of a prism is the product of the area of the base and the distance between the two base faces, or the height (in the case of a non-right prism, note that this means the perpendicular distance).
In 2017, most homeowners are paying between $2.87 and $3.85 per watt to install solar, and the average gross cost of solar panels before tax credits is $16,800. Using the U.S, average for system size at 5 kW (5000 watts), solar panel cost will range from $10,045 to $13,475 (after tax credits). Thatâs nine percent lower than it was a year ago, and solar panel system costs are continuing to fall.
How Much Do Solar Panels Cost â¦ On My Roof? When you ask, âHow much do solar panels cost?,â what I think you really want to know is how much it costs to put solar panels on your roof, right? The bulk of the price of going solar is now the âsoft costsâ (installation, permitting, etc.) rather than the solar panel cost itself.