Technology

Technology
& equipment

The drones and robots are how the work gets done, not what we sell. What you buy is clean panels and the power that comes with them — unless you would rather own the machines and run them yourself, which we can also arrange.

The platform

What the
technology does

Drone inspection

Normal and heat-sensing cameras, flown over the whole site.

Automated cleaning

Robotic and drone-powered cleaning, deployed and operated by LUMEN.

A written report

Photographs and findings handed over as a document, not a chat on site.

The cleaning drone

Water at pressure,
flown to the panel

The drone carries a nozzle, not a tank. Water comes from a pump on the ground and up a hose, so the weight stays on the ground and the aircraft only has to fly the nozzle where it needs to go — up to 100 m away from where the pump sits.

Cleaning drone seen at an angle, its spray boom and nozzle extended to one side — Spray boom and nozzle extended

Cleaning drone head-on with all four arms unfolded and rotors fitted — Head-on, arms unfolded

Cleaning drone from the side, showing the tubular landing frame and the hose feed beneath it — Landing frame and hose feed

Pump pressure	3,200 PSI
Cleaning rate	About 1,000 m² an hour
Water flow	0–12 litres a minute
Flight time	30–50 minutes a battery
Working height	Up to 100 m
Hose reach	100 m from the pump
Airframe weight	7.4 kg without battery
Battery	12S 32,000 mAh

What comes to site

Remote controller with waterproof FPV camera
High-pressure electric pump
Semi-solid 12S battery and charger
100 m hose on a manual reeler
Tool kit in an aluminium transport case

Water supply is agreed before the job. We can draw from a tank, a bowser or a site connection — the assessment covers what is available and what the site will need.

Why drones

Solar maintenance from
a different perspective

Four reasons the work is done from the air rather than row by row on foot.

Covers more ground

Flying across the panels instead of walking along them puts a whole site in one visit.

Fewer people on the roof

Roof edges, high structures and live plant stay something you look at, not climb on.

Reach difficult areas

High roofs, dense ground-mount rows, and the corners access equipment cannot reach.

Works at any size

The same method covers a 200 kW roof and a multi-megawatt field.

Equipment

Want to own
the technology?

For organisations that would rather run their own equipment, LUMEN can source and deploy it. You own the machine and run it; LUMEN handles getting it here and keeping it working.

Technology selection
Equipment sourcing
Manufacturer coordination
Deployment
Operator training
Spare-parts planning
Technical support

Fleet

Two platforms.
Four builds.

Choose by site, not by catalogue. The light R-Series carries up to a table by hand and works long ground-mount rows on mine and farm installations; the heavy T-Series doubles the brush and widens the path for large commercial arrays. Each comes in two widths, and every build is quoted, shipped and commissioned the same way.

R-Series — tracked

R-Series

A single full-width brush lifts dust and harvest drift off the glass, on a chassis light enough for one person to carry up to a table. Built for long ground-mount rows where the machine can work a whole row before it turns. The Pro widens the path, adds the higher speed presets and takes the optional auto-path package.

	R-Series	R-Series Pro
Best for	Mine and farm ground-mount rows
Cleaning width	1.2 m	1.4 m
Travel speed	20 m/min	20 / 30 / 40 m/min
Run time	4–5 h standard, 8–10 h long-range
Charging time	6–7 h	8 h
Dimensions	1300 × 1000 × 350 mm	1550 × 1150 × 350 mm
Unit weight	23 kg	30 kg
Brush weight	7.5 kg	11 kg
Horizontal reach	15 cm	25 cm
Suitable array tilt	Up to 20°
Auto-path option	Not offered	12,000 m² a day, over 99% coverage

Configuration	Build	Price
R-Series	1.2 m, single brush, 4–5 h	From US$3,290
R-Series Long-Range	1.2 m, single brush, 8–10 h	From US$3,850
R-Series Pro	1.4 m, single brush	On request

Ex-works, before shipping. Freight, duty and delivery to site are quoted with your assessment.

Single brush
1.2 / 1.4 m path
From 23 kg
Table-length runs

T-Series — tracked

T-Series

The heavy platform, sized for large commercial arrays and hard-to-reach plant areas. The chassis spreads its load across the cell field and four edge sensors stop and turn it at the end of every run. Order it with one brush roller or with two and a scraper behind them.

	T-Series	T-Series Pro
Best for	Large commercial arrays and plant roofs
Cleaning width	1.4 m	1.8 m
Travel speed	20 / 30 / 40 m/min
Run time	3.5 h standard, 7 h long-range	3 h standard, 6 h long-range
Charging time	8 h per battery
Dimensions	1720 × 1550 × 300 mm	1720 × 1950 × 300 mm
Unit weight	61.1 kg	63.5 kg
Brush weight	14.5 kg	16.5 kg
Horizontal reach	60 cm
Suitable array tilt	Up to 20°
Brush	Single roller, or dual roller with scraper
Auto-path option	18,000 m² a day, over 99% coverage

Configuration	Build	Price
T-Series	1.4 m, single brush	From US$5,950
T-Series Extended	1.4 m, single brush, larger battery	From US$6,521
T-Series Dual Brush	1.4 m, two brushes and a scraper	From US$6,523
T-Series Dual Brush LR	1.4 m, two brushes, long-range	From US$7,294
T-Series Pro	1.8 m, two brushes and a scraper	On request

Ex-works, before shipping. Freight, duty and delivery to site are quoted with your assessment.

One brush or two
1.4 / 1.8 m path
Edge sensing
60 cm reach

Drive track and squeegee head detail on a cleaning robot — Drive track and squeegee head

Cleaning robot seen from above, brush bar ahead of the tracks — Brush bar and track pitch

Cleaning robot with freshly cleaned panels behind it — Cleaned glass behind the pass

Next step

Not sure which
you need?

Most operators are better served by the services, where LUMEN owns the technology and you buy the outcome. Send us the site and we will say which of the two actually suits it.

Get a free assessment Message us on WhatsApp

Technology& equipment

What thetechnology does