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Solar Cleaning

Solar Panel Cleaning: Maximize Energy Output and ROI

February 3, 2026
By Ryon
7 min read

Solar Panel Cleaning ROI

Dirty solar panels are costing you thousands in lost revenue. Here's how cleaning maximizes your ROI.

The Efficiency Problem

Solar panels lose efficiency as they accumulate dust, dirt, and debris:

  • Residential rooftops: 15-25% efficiency loss
  • Commercial canopies: 20-30% efficiency loss
  • Utility-scale arrays: 25-35% efficiency loss
  • Coastal properties: 30-40% efficiency loss (salt spray)

Revenue Impact

For a 100kW solar system:

  • Annual revenue (clean): $25,000
  • Efficiency loss (dirty): -20%
  • Annual revenue lost: -$5,000

Over 5 years, dirty panels cost you $25,000 in lost revenue.

Cleaning ROI

Professional solar cleaning costs $2,500-$3,500 per project. ROI timeline:

  • Month 1: Break even
  • Month 2-6: Pure profit
  • Year 1: $2,000 net benefit
  • Year 5: $10,000+ net benefit

Cleaning Frequency

Optimal cleaning frequency depends on location:

  • Dry climates: Quarterly
  • Moderate climates: Semi-annual
  • Coastal areas: Monthly (salt spray)
  • Desert areas: Quarterly (dust accumulation)

Cleaning Methods

Professional solar cleaning uses:

  • Low-pressure water systems
  • Eco-friendly cleaning solutions
  • Soft-bristle brushes
  • No harsh chemicals
  • Warranty-safe methods

Thermal Imaging Benefits

Professional cleaning includes thermal imaging:

  • Identifies underperforming panels
  • Detects failed cells
  • Finds hot spots
  • Optimizes maintenance

Long-Term Benefits

Regular solar cleaning:

  • Extends panel lifespan
  • Maintains warranty compliance
  • Improves system performance
  • Increases property value
  • Supports sustainability goals

Get Started

Schedule a free solar assessment to see how much revenue you can recover.

Ready to Get Started?

Schedule a free assessment to see how Aeronex can help your business.