Hardware tool

Solar Panel Output Calculator

Estimate daily and monthly solar energy from panel size, sun hours, and losses.

Runs in your browser
Solar Panel Output Calculatorupdates live
Result
Daily energy
25.58 kWh
Monthly energy
779 kWh
Annual energy
9,338 kWh
Annual retail value
$1,494.11

This is only a planning estimate. Shade, orientation, temperature, inverter clipping, weather, and utility compensation affect real production.

How to use this solar panel output calculator

  1. Enter the rated capacity or power, expected load, losses, and safety allowance from the equipment labels or plan.
  2. Review the calculated totals, units, and assumptions. Check the inputs and units before relying on the result.
  3. Change one input at a time to compare another case, then copy or save the result you plan to use.

About this solar panel output calculator

Use the Solar Panel Output Calculator to estimate daily and monthly solar energy from panel size, sun hours, and losses. Change the inputs to compare another result.

You can also use it to compare results after changing one input.

Example

A 6 kW array with 5.2 peak sun hours and 18 percent system losses can be converted into daily, monthly, and annual energy estimates.

Common uses

  • estimate daily and monthly solar energy from panel size, sun hours, and losses
  • compare results after changing one input
  • save an estimate for planning or comparison