We clean, test, monitor and maintain solar plants and wind turbines. Science decides when and how we clean, drones and PV testers find faults early, and you get one point of contact and one full report.
Most plants wash twice a year out of habit, with hard water that leaves scale behind. Faults hide until they cost you. We clean when it pays, stop contaminants before they do damage, and find failing panels before they fail.
Every one of them costs you energy you have already paid to produce. Each one has a measurable fix.
Soiling sensors, local wind and weather patterns and AI prediction find the tipping point where a clean earns more than it costs.
You set the target, for example R4 of energy for every R1 spent. We clean when it is reached.
Metal oxides, cement and limescale can cut output by 8 to 13% within 3 to 6 months. Left on, they etch the anti-reflective coating, cause hotspots and put warranties and insurance cover at risk.
We remove them and protect the panels so they don’t build up again.
Most plants clean with hard water. The scale it leaves gets harder with every wash, so prevention beats removal.
We design water plants or soften with chemicals, and apply anti-dust treatments that allow dry cleaning cycles.
Thermal drones scan the whole plant for hotspots and hazards. Our team checks each fault on the ground with handheld thermal cameras.
We fix or replace on site, or brief your team, then confirm with 1500 V / 40 A IV curve tests.
Sensors on your rows, AI forecasts of dust build-up and a return you choose. The clean happens at the tipping point, automatically or on your go-ahead.
Soiling sensors record losses on your site every day.
AI models use wind, weather and dust data to forecast build-up.
You set the return you want from each rand spent on cleaning.
We clean at the tipping point, automatically or on your go-ahead.
With this target, the model on an example dusty site calls 6 cleans this year, each one timed to a dust event or a dry spell rather than a date.
Autonomous robots, robot-assisted crews or manual cleaning, matched to your panels, rows and terrain. At least one deep clean a year.
Solar cleaning
Cement, metal oxides and limescale taken off with specialist chemistry, then a protective coat so they don’t bind again.
Contaminant removal
Water testing, softening design and water plants, plus anti-dust treatments that allow dry cleaning cycles.
Water for cleaning
IV curve tests, handheld thermography, commissioning support and equipment heat checks, from the air to every string.
Inspection & testing
Whole-site thermal surveys, LiDAR 3D scans of terrain, rows and vegetation, and turbine blade inspections.
Drones & LiDAR
Inverters, transformers, trackers, BESS, vegetation and monitoring, as full turnkey O&M or support for your own team.
Plant care & O&M
Our proprietary drone system foams and cleans blades in hours instead of weeks. Nobody leaves the ground.
Wind turbine servicesA free site visit assesses your soiling, contamination or problem area, and shows what we would do first.
Book a free site visitDJI enterprise drones map the whole plant in thermal and in 3D. Our team then confirms each fault on the ground and proves the repair with an IV curve.
Hotspots, failed diodes, hot strings and areas running hot from dust, mapped to the exact module.
Accurate surveys of terrain, row heights and vegetation, for drainage, grass and fire-break planning.
Illustrations of the output. Your report shows your own plant.
Matrice 400 droneThe drone platform we flyDJI equipment demo · YouTube
LiDARZenmuse L2: 3D LiDAR mappingDJI equipment demo · YouTube
Thermal inspectionThermal drones on a solar farmDJI equipment demo · YouTubeVideos from the makers of the equipment we use. Our own site footage is on its way.
Our 1500 V / 40 A analysers trace the current and voltage of each string. A healthy string has a smooth knee. A failed bypass diode puts a step in it. Soiling squashes it flat. Try it.
DJI enterprise thermal drones map every panel on site.
Handheld thermal cameras check each flagged panel on the ground.
We repair or replace on site, or brief your own team.
IV curve tests confirm the fix before we recommission.
To you and, with your consent, to your insurer and the manufacturer.
Our proprietary drone system applies a specialised foam made by RenewChem that lifts what builds up on blades. No one hangs from the nacelle, and your turbine is back online the same day.
*Per turbine, depending on how dirty the blades are and on wind conditions on the day.
RenewChem brings the science. RenewClean does the work. Use RenewChem on its own, or let RenewClean deliver it all.
One combined quote costs less than two separate contracts.
One team accountable for the result.
Chemistry, water and cleaning planned as one system.
Or pick single services where your own team needs support.
Start the plant with a signed baseline.
The yearly check your insurer wants.
Clean when it pays, not by the calendar.
Everything in one contract.
Move the sliders to find the frequency that costs you least, counting both lost yield and the cost of each clean. We confirm the real answer on site.
Large C&I sites start at about 1 MWp. Utility plants run from 10 MWp to several hundred.
Your PPA price or the tariff you avoid.
Yearly cost (lost yield plus cleaning) by cleans a year. An indicative estimate, not a quote: rain, tilt, water quality and access all change the answer.
We mobilise crews and equipment quickly when your plant needs it.
Try our cleaning on your own rows and see the results before you commit.
Call us out to assess soiling, contamination or a problem area.
We stand by our clients, whatever happens on site.
From one-off advice to full turnkey O&M: you choose.
Solar plant performance is what we love and all we focus on.
When it pays. Soiling sensors measure your losses every day and AI models forecast how fast dust will build up. You set the return you want, for example R4 of energy for every R1 spent on cleaning, and we clean when that point is reached. We still recommend at least one deep clean a year to remove scale and contaminants.
Soiling is loose dust and sand that comes off with water and a brush. Contamination bonds to the glass: metal oxides, cement and limescale. It can cut output by 8 to 13% within 3 to 6 months, etch the anti-reflective coating and cause hotspots. We remove it with specialist chemicals and then protect the panels.
Yes. We work alongside your team, not instead of it. Choose full turnkey, a shared model where we do the deep cleans and chemical work, or monitor-and-advise where we point your team to underperforming areas and train your staff.
At commissioning, then at least once a year, or as often as your insurer or asset owner requires. Reports go to you and, with your consent, to your insurer, and support warranty claims with the evidence manufacturers ask for.
We use 1500 V / 40 A analysers for high-current strings, on a 10% spot check or the full plant, to find weak strings and wiring faults. We also use IV curves to prove every repair before we recommission.
A drone inspection shows whether the blades need a clean. Our drone system then applies a specialised foam made by RenewChem that lifts insects, oil, salt and grime, and a follow-up inspection confirms the result. It takes about 3 to 4 hours per turbine, depending on how dirty the blades are and on the wind, and nobody works at height.
RenewChem’s everyday panel cleaners, protective coatings and anti-static coatings are gentle enough for your own team, after we train them and check the dilution ratios. The strong contaminant removers used in deep cleans can damage panels if used wrongly, so we only supply them to fully certified teams, or our own crews do the work.
Yes. RenewClean is the execution company of the RenewHoldings group. RenewChem, part of the same holding company, tailors and supplies the chemistry and equipment. You can use RenewChem on its own, or let RenewClean deliver it all under one contract.
RenewClean is a Level 2 B-BBEE company and a SAPVIA member, and our engineers are ECSA-registered. Our safety file and supporting documents are available on request for tenders and vendor registration.
Tell us what your plant needs, and we’ll take it from there. Site visits and pilot cleans are free.
