Solar Panel Calculator – PV Energy Output & Savings

☀️

Solar Production Calculator

Estimate daily & monthly energy output from PV panels.

Total power of panels (e.g., 5kW)
Search "Sun hours in [City]"
Standard loss is ~20% (Enter 80)
To calculate savings
Daily Production: 0 kWh
Monthly Production: 0 kWh
Yearly Production: 0 kWh
💰 Est. Monthly Savings: $0

How is Solar Output Calculated?

The energy produced by a photovoltaic (PV) system depends on the sun intensity and system losses.

Basic Formula:
Daily kWh = (System Size kW) × (Sun Hours) × (Efficiency)

Key Factors:

  • Peak Sun Hours: Not the total daylight length, but the equivalent hours of full sun (1000 W/m²).
  • Efficiency: Real-world factors like heat, dust, wiring, and inverter conversion usually result in 15-20% loss.