Solar Wash

Solar Farm Cleaning — Fleet & Equipment

Our owned and operated fleet delivers 54,000–75,000 panels cleaned per day. Every machine in our fleet is purpose-built for utility-scale solar farm cleaning.

Sunbrush Australia – Industry-leading Sunbrush Trackflex technology for high-speed, precision cleaning.

Elite Drone Services – Cutting-edge thermal drone inspections to detect underperforming panels and faults.

54,000–75,000
Panels Cleaned Per Day
3
Tractor Systems
3,167,500+
Panels Cleaned
5
States Serviced

View our documented operational performance across completed utility-scale programs.

View Case Studies →

Why Solar Farm Cleaning Matters

Performance Loss From Soiling

Soiling is one of the most significant — and most overlooked — causes of underperformance in utility-scale solar assets. Dust, agricultural residue, bird droppings and airborne particulates accumulate progressively on panel surfaces, blocking photovoltaic cells from direct sunlight. According to Sunbrush — the manufacturer of the industry-leading Sunbrush Trackflex system used by Solar Wash — yield losses from inadequate cleaning reach:

  • Up to 30% yield loss from lack of cleaning on larger installations
  • 5–15% annually in standard environments from typical dust accumulation
  • In high-dust agricultural, mining-adjacent or coastal environments, losses can reach 25–30% or more
  • For larger systems, soiling-driven underperformance can result in four to five-figure revenue losses annually
  • Hotspots caused by concentrated soiling or debris can cause permanent cell damage if left unaddressed

The Sunbrush Trackflex system used by Solar Wash achieves up to 10,000m² of panel surface cleaned per hour — making it the most efficient cleaning solution available for utility-scale installations.

Return on Investment

Professional solar farm cleaning is a performance investment, not a cost. Solar Wash works with asset owners and O&M providers to assess output data and schedule cleaning at the optimal point — maximising generation revenue, protecting asset value and reducing the risk of warranty non-compliance from inadequate maintenance documentation.

Compliance and Maintenance Documentation

Many solar farm financing agreements, insurance policies and O&M contracts require documented evidence of regular maintenance. Solar Wash provides detailed post-clean condition reports — damage identification and block-by-block cleaning records — meeting the documentation requirements of financiers, asset managers and O&M providers.

In Action

Solar Farm Cleaning — Real Programs

Timelapse — Solar Farm Clean

Solar Farm Cleaning — Solar Wash Australia

Solar Farm Cleaning — Frequently Asked Questions

Solar farms are typically cleaned on an 18–24 month cycle, driven by output depreciation and/or warranty and O&M commitments. Solar Wash works with asset owners and O&M providers to schedule cleaning at the right time for your farm.

Solar Wash uses the Sunbrush TrackFlex system — a multi-brush unit mounted on tractors that cleans at an average rate of 15,000 to 75,000 panels per day depending on farm layout. The system uses softened water and specialist brushes that are safe for all panel types. For drone thermal inspection, we partner with Elite Drone Services Australia to identify underperforming panels, hotspots and faults.

Solar Wash uses only softened water — no chemicals, no detergents, no abrasives. This protects panel warranties, panel coatings and the surrounding environment. Our water is treated on-site using specialist filtration equipment.

Solar Wash provides solar farm cleaning services across NSW, ACT, VIC, QLD and SA. Our national team mobilises to site — all mobilisation costs are included in our per-panel pricing. Contact us to discuss your farm location and we will provide a site-specific proposal.

Every Solar Wash solar farm clean includes a detailed post-clean condition report covering block-by-block cleaning records, drone thermal imaging results identifying hotspots and underperforming cells, fault identification and recommendations, before and after soiling comparisons and a maintenance schedule recommendation. Reports are provided in digital format and can be formatted for O&M provider requirements.

Solar farm cleaning is priced on a per-panel basis and depends on farm size, location, layout, access conditions and cleaning frequency. Solar Wash provides fully inclusive per-panel pricing — no hidden mobilisation or setup costs. Contact us for a site-specific proposal and we will respond within one business day.

Yes. All Solar Wash team members hold $20,000,000 public liability insurance, site-specific risk assessments are conducted prior to every job, certificates of currency are available on request and all operational procedures comply with relevant WHS regulations. We have extensive experience working with GFO managers, O&M providers and asset owners across Australia.

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