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Solar Panel Cleaning Savings Calculator

Dust quietly steals 10 to 25 percent of your solar output. Enter your system details and cleaning cost to estimate how much energy regular cleaning recovers and whether it pays for itself.

Your system and cleaning plan

Used for context only, not in the math.
Read this from your inverter or monitoring app.
Typical range is 10 to 25%. Set 20 to 25% in very dusty areas.
Set 0 if you clean the panels yourself.
Energy Recovered (monthly)
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Value of Recovered Energy
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Monthly Cleaning Cost
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Net Monthly Savings
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Net Yearly Savings
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Energy Recovered (yearly)
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How the estimate is calculated

Monthly recovered energy is your current daily generation times the dust loss percentage times 30 days. Its value is recovered kilowatt-hours times your tariff in Rs per kWh. Monthly cleaning cost is cost per cleaning times cleanings per month (4.33 for weekly, 2.17 for every two weeks, 1 for monthly, 0.33 for quarterly). Net monthly savings is recovered value minus cleaning cost, and net yearly savings is 12 times that.

Frequently asked questions

In dusty areas, a thin dust layer typically cuts panel output by 10 to 25 percent, and in long dry spells it can reach higher. Regular cleaning recovers most of this lost energy.

Monthly cleaning is a good balance for most residential systems in Pakistan. In very dusty or construction areas, cleaning every two weeks can pay off; near heavy traffic or bird droppings, inspect more often.

Recovered energy equals your daily generation times the dust loss percentage times 30 days. Its value is recovered kilowatt-hours times your electricity tariff in Rs per kWh.

No, they are estimates. Actual dust loss depends on location, tilt angle, weather, panel age and shading. Monitor your inverter readings before and after cleaning for your real number.

Yes. It is free with no signup.

All figures are estimates; actual results vary with dust conditions, panel age, tilt and weather. Related: Solar Payback Calculator Pakistan and Solar Panels Calculator.

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