Australia-Wide Solar Farm Cleaning for Utility-Scale Solar Assets
Maintaining peak efficiency in large-scale solar farms requires specialist cleaning solutions. Dust, dirt and environmental buildup can drastically reduce panel performance, impacting energy output and long-term returns.
At Solar Wash Holdings, we provide a complete, high-efficiency solar farm cleaning solution in partnership with:
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.
What We Do
Solar Wash provides specialist cleaning and maintenance services for utility-scale solar farms across Australia. Our scope of services includes:
- Utility-scale solar farm cleaning — scheduled and reactive cleaning programs for large-scale solar installations
- Tractor-mounted Sunbrush Trackflex cleaning — high-speed, precision cleaning across flat and moderately sloped terrain
- Thermal drone inspection — in partnership with Elite Drone Services Australia, identifying underperforming panels, hotspots and cell faults
- Performance optimisation — pre and post-clean output data analysis and condition reporting
- National mobilisation — full mobilisation capability across NSW, VIC, QLD, SA and ACT with all mobilisation costs included in per-panel pricing
Fleet Capacity & Mobilisation Capability
54,000–75,000 panels cleaned per day across our full owned fleet
Our Fleet
- Deutz tractor-mounted Sunbrush systems
- John Deere tractor-mounted Sunbrush systems
- Multiple Sunbrush Trackflex units
- On-site water treatment and softening equipment
- All equipment owned and operated by Solar Wash
Mobilisation
- NSW, VIC, QLD, SA and ACT
- Full mobilisation included in per-panel pricing
- Multiple crews deployable simultaneously
- Site-specific SWMS prepared prior to mobilisation
- Enquiry to proposal within one business day
Our full fleet can clean between 54,000 and 75,000 solar panels per day, allowing large-scale solar farms to be cleaned safely and efficiently within tight operational windows.
View our documented operational performance across completed utility-scale programs.
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.
Security, Compliance & Professionalism
All our Team Members hold
Industry-Leading Experience
Trusted by both O&M’s, Owners and Principles across Australia with literally millions of panels successfully cleaned we are well aware of what it takes to successfully complete cleans of this scale.
Australia wide coverage
Our Team is NSW based but we travel to and operate in all states of Australia. Full mobilisation included in pricing.
Certified, Trained & Insured
Our team meets all safety and compliance requirements.
Quality Control & Reporting
We provide detailed reports post-clean, including thermal drone imaging (if required) and damage reports.
Flexible & Scalable Solutions
Whether a 100kW installation or a multi-megawatt farm, we tailor our services to your needs.
Cost-Effective Per-Panel Pricing
Transparent and fully inclusive, covering all operational costs.
Advanced Solar Farm Cleaning Technology
- Sunbrush Trackflex System – Mounted on tractors, our Multiple Sunbrush Trackflex units clean at an average rate of 54,000 to 75,000 panels per day, depending on terrain, ensuring cost-effective, rapid service.
- Fully Inclusive Per-Panel Rate – Our pricing covers mobilisation, setup, water provision, execution and reporting, eliminating hidden costs.
- Thermal Drone Inspections – In partnership with Elite Drone Services, we identify panel defects, hotspots and inefficiencies with precision aerial imaging.
- Eco-Friendly, Streak-Free Cleaning – We use low-presure, soft water cleaning methods that are safe for both the panels and the environment.
- Minimal Downtime, Maximum Performance – Our efficient cleaning process ensures minimal disruption to energy production.
- Site-Specific SWMS – Provided for each project.
- Compulsory Daily Risk Assessments – Ensuring site safety before any work begins.
- $20,000,000 Public Liability Insurance – Full coverage scalable if required.
- Certificates of Compliance (COC) – Available for all relevant equipment and procedures.
Our Solar Farm Cleaning Capability
Operational Scale
Solar Wash operates at utility scale. Our owned and operated Deutz, John Deere and Sunbrush Trackflex fleet is capable of cleaning 54,000 to 75,000 panels per day, depending on ground conditions. We deploy multiple systems simultaneously on larger installations, with dedicated trained crews for each unit. Trusted by O&M providers, asset owners and principals across Australia : with millions of panels successfully cleaned.
- Up to 75,000 panels cleaned per day across our owned fleet
- Multiple tractor-mounted Sunbrush systems deployable simultaneously
- Dedicated trained crews with experience across multi-MW installations
- Millions of panels successfully cleaned across Australian solar farms
Mobilisation Capability
Solar Wash is NSW-based and operates nationally. Our team mobilises to solar farm sites across:
- New South Wales
- Victoria
- Queensland
- South Australia
- Australian Capital Territory
Full mobilisation is included in our per-panel pricing — no hidden travel, accommodation or setup costs. Our fully inclusive per-panel rate covers mobilisation, water provision, execution and post-clean reporting.
Our Solar Farm Cleaning Process:
Site Evaluation & Planning
Assess terrain, panel layout and accessibility.
Cleaning Method
Trackflex System Cleaning
Our Deutz, John Deere and Sunbrush Trackflex fleet cleans 54,000 to 75,000 panels per day depending on ground conditions.
Thermal Drone Inspection
Elite Drone Services conducts high-resolution thermal imaging to detect panel faults.
Quality Check
Full Reporting
Full cleaning & performance report
Safety and Compliance Systems
Solar Wash operates to the safety and compliance standards required by enterprise asset owners, O&M providers and government clients across Australia. Our compliance framework has been developed through extensive experience working on large-scale commercial and utility-scale solar installations.
- Site-specific SWMS — Safe Work Method Statements prepared for every solar farm job before work commences on site
- Compulsory daily risk assessments — completed each morning before any work begins, reviewed by the site supervisor
- JSA documentation — Job Safety Analysis available on request for enterprise and government clients
- $20,000,000 public liability insurance — scalable to project-specific requirements; certificates of currency available on request
- PPE compliance enforced — full PPE requirements for all crew members at all times on site
- Incident reporting — all incidents and near-misses are documented and reported in line with applicable WHS legislation
- Working at Heights certification — current for all technicians
- Police checks — current for all staff where required by site access conditions
Our safety documentation is available in formats compatible with major O&M contract management platforms including FMWeb, Arcus and Felix. Certificates of insurance and compliance documentation can be supplied in advance of mobilisation to meet your procurement requirements.
Case Studies
750,000 Panels. One Cleaning Program. Delivered on Schedule.
Utility-Scale Solar Farm — Regional NSW
Solar Wash completed a large-scale cleaning program for a utility-scale solar farm in regional NSW. The installation comprised approximately 750,000 panels across multiple row configurations. Our Sunbrush Trackflex tractor systems completed the clean within the agreed programme timeframe. A post-clean thermal inspection conducted by Elite Drone Services identified a small number of underperforming strings for the client’s O&M team to assess. A full condition report was delivered within five business days of completion.
Multi-MW Commercial Solar — Regional Australia
Solar Wash provides ongoing scheduled cleaning for a number of multi-megawatt commercial solar installations under recurring service agreements. Programs are triggered by each asset owner’s output monitoring data — cleaning is scheduled when soiling losses reach the point at which the production uplift offsets the cost of the clean. Our fully inclusive per-panel pricing and mobilisation model makes the ROI calculation straightforward for asset management teams.
O&M Provider Partnership — Eastern Australia
Solar Wash operates as a preferred cleaning contractor for a number of O&M providers managing solar farm portfolios across eastern Australia. Our documentation standards — site-specific SWMS, daily risk assessments, post-clean condition reports and thermal imaging data — meet the reporting requirements built into most O&M contracts, making Solar Wash a low-friction, high-reliability partner for O&M teams managing multiple assets across multiple states.
Solar Farm Cleaning Across Australia
Solar Wash provides solar farm cleaning services nationally. Our team mobilises to solar farm sites across:
- New South Wales — including the Central West and South West solar zones
- Victoria — including the Western District and Murray-Darling Basin regions
- Queensland — including the Central Queensland and Darling Downs solar corridors
- South Australia — including the Spencer Gulf and Mid-North regions
- Australian Capital Territory — government and commercial installations
All mobilisation costs are included in our per-panel pricing. Contact us to discuss your site location and we will provide a site-specific proposal within one business day.
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 18,000 to 25,000 panels per day per unit depending on terrain. Running our full fleet of three systems simultaneously delivers 54,000 to 75,000 panels per day. 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.
Related Services & Resources
- Commercial Solar Panel Cleaning
- Government Solar Panel Cleaning
- Risk Assessment — SWMS and risk assessment framework
- How Solar Panel Cleaning Works
- Case Studies — Documented Programs
- About Solar Wash — safety systems, insurance, national coverage
- Contact Solar Wash — solar farm enquiries within one business day
- Request a Site Assessment