basic

Solar Panel Daily Energy Output Calculator

kWh/day = panel_watts × peak_sun_hours × efficiency.

Estimates daily solar energy output: kWh = panel_kWp × PSH × performance_ratio. For a 5 kWp system with 5 PSH and PR=0.75 → 18.75 kWh/day.

Dr. Helena Ortiz By Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

kWp
h

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

kWh/day = kWp × PSH × PR

In depth

Estimates daily solar energy output: kWh = panel_kWp × PSH × performance_ratio. For a 5 kWp system with 5 PSH and PR=0.75 → 18.75 kWh/day.