Calculate required system size (kW), number of solar panels, roof area, battery capacity, 30% tax credit, and financial payback period.
25 × 400W Panels Required
450 sq ft
10.1 Years
A residential solar system converts photon energy from sunlight into clean DC electricity, which an inverter converts into AC power for household appliances. Sizing depends on your average daily kilowatt-hour (kWh) usage and your regional peak sun hours.
Under current clean energy incentives, homeowners can deduct 30% of total solar equipment and installation costs directly from their federal tax liability.
Adding 10 to 15 kWh of lithium battery storage (like Tesla Powerwall or Enphase) provides blackout protection and eliminates expensive peak time-of-use utility rates.