Estimate solar installation cost, total system cost, cost per watt, equipment cost, labor cost, permit cost, net cost after incentives, monthly savings, annual savings, payback period, and solar ROI. Use this calculator to compare solar project costs before installing panels.
System size mode:
The calculator multiplies solar system size by 1,000 to get watts, then multiplies by installed cost per watt.
Panel count mode:
The calculator multiplies number of panels by panel wattage to estimate system watts and installation cost.
Detailed breakdown mode:
The calculator adds panels, inverter, mounting, wiring, labor, permits, battery, and other costs to estimate total installation cost.
Budget mode:
The calculator divides your budget by cost per watt to estimate how large of a solar system the budget may cover.
A solar installation cost calculator helps estimate project cost before comparing quotes, planning financing, checking incentives, or calculating payback.
It can help compare gross cost, net cost, cost per watt, system size, equipment cost, labor cost, battery cost, incentives, monthly savings, payback period, ROI, and lifetime savings.
Your result shows estimated gross solar installation cost, net cost after incentives, cost per watt, system size, total watts, panel count, incentive value, monthly savings, annual net savings, payback period, ROI, and lifetime net savings.
Multiply solar system watts by installed cost per watt. For example, an 8 kW system is 8,000 watts. If installation is $2.75 per watt, gross cost is $22,000.
Cost per watt is the total installed solar cost divided by the system watts. It is commonly used to compare solar installation quotes.
Net solar cost subtracts incentives, credits, rebates, and other discounts from the gross installation cost.
Yes. Battery storage can significantly increase total installation cost, especially for backup or off-grid systems.
No. This is an estimate. Actual installation cost can vary based on roof type, system design, local labor, permitting, electrical upgrades, battery storage, equipment brand, incentives, and installer pricing.