The solar panel calculator determines the system size and number of panels needed to meet your electricity needs based on usage and sun exposure.
Enter monthly kWh usage, peak sun hours in your area (check solar maps), and panel wattage (typically 300-400W). The calculator shows system size and panels needed.
This helps plan solar installations, estimate roof space requirements, and understand the scale of investment needed for energy independence.
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Frequently Asked Questions
Check NREL solar maps or local solar companies; varies by location.
Yes, but consider net metering policies and battery storage needs.
Typically 6-12 years depending on costs, incentives, and electricity rates.
Not required with grid connection, but provides backup power.
Typical panel is ~18 sq ft; calculate total area needed.