Engineering services for renewable asset performance
We measure your plant, prove what works on your own strings, and design a cleaning programme your O&M team can run. Only need the products? You can order just those.

01 · Measure
Know what you’re losing, and why, even before you build.
Site assessments, soiling sensors, cleaning-water tests and studies for plants not yet built.

Site soiling assessment
We identify what is on your glass, where it comes from and what it is costing you.Up to 11.5%soiling loss per month near dry farmland in US data, against 0–2% a month in natural desert
Soiling measurement & monitoring
Reference panels, soiling stations and optical sensors that measure your soiling ratio every day.1.5–2×variation in soiling across a single site, so large plants need more than one sensor
New-plant soiling study
Measure dust, sources and water at a planned site, and turn them into yield, design and O&M inputs.39%of a year's energy lost uncleaned at Arica on the Atacama coast; 3% or less at higher, southern sites
Cleaning-water testing
On-site hardness and quality tests, checked against your module maker’s limits.−4.9%a string washed with high-TDS well water alone, against the three-string average
CSP mirror reflectivity
Reflectance measurement and cleanliness-based wash triggers for mirror fields.13×slower reflectivity loss with Mirtek, brush-washed at SOLABEN, Spain: 0.16% in 10 days vs 2.17%
02 · Prove
See the gain on your own plant first.
A free pilot on your own strings, or a full study of a very large plant.

Free pilot
Prove the gain on your own strings before you commit. Free for utility-scale and large C&I plants.Freefor utility-scale and large C&I plants
Full plant study
For very large plants: soiling losses, cleaning economics and a costed programme.91%of South African solar IPPs surveyed cleaned their pyranometers weekly, as IEC 61724 recommends
03 · Optimise
Design how, when and with what you clean.
The method, the interval, the equipment and the records, within your module maker’s rules.

Cleaning & O&M strategy
Methods, intervals, water, crews and equipment, designed for your plant and contract.−17%soiling cost when data picks the cleaning day, in a modelled Californian example
Cleaning systems & equipment
Brushes, robots, dosing pumps and water treatment, designed, specified and supplied for your plant.1.35 km/htractor-brush speed on coated strings, up from 1.1 km/h, at a 115 MWc tracker plant in Chile
Asset management support
Cleaning that is warranty-safe, on record and measured in rand, for asset owners and asset managers.4 of 10of the top ten module makers give a clear warning that improper cleaning voids the module warranty
Restore → Protect → Maintain
Our three-phase programme: remove what’s bonded, stop it bonding, keep it clean.4.56% → 11.9%daily gap between restored, coated modules and water-cleaned ones, Chilean carport, Oct–Nov 2022
Working with your O&M team
We plug into your existing O&M contract, train your crews and hand over the method.15–25%less cleaning water on a 330 MW plant in Vietnam, with the coating dosed by its own O&M team
Warranty-safe methods
Cleaning that stays within module makers’ conditions and protects coatings and frames.18module-maker letters of conformity for Chemitek Solar Wash Protect
04 · Clean
Cleaning set up and proven, from solar rows to wind turbine blades.
By crew, tractor, robot or drone, handed over to the team that runs the plant.

Solar panel cleaning
Method, chemistry, water and equipment set up and proven for your crews. Drone cleaning where access is hard.3%energy gain of coated systems over water-only cleaning across nine months, peer-reviewed, Morocco
Drone cleaning
Drone-applied cleaning for arrays, roofs and façades that crews can’t reach safely.1:50–1:150dilution of Chemitek Drone Solar Cleaning Agent in water
Wind turbine blade cleaning
Drone-applied blade cleaning with Chemitek’s wind turbine agent. No rope teams or cranes.Up to 25%production lost to insects on older stall-regulated turbines; pitch-regulated ones lose less