Solutions

Cleaner panels.
Maximum output.

Zimbabwe's dry season runs six months without meaningful rain. LUMEN robots clean your array through all of it — no bowser, no borehole, no one standing on glass.

Book a site assessment Model your dust loss

Built for: Mines, farms, factories
Dry season: May — Oct
Cleaning path: 1.2 — 1.8 m
Operation: Remote-controlled

LUMEN T-Series cleaning robot, both brush bars extended — T-Series — dual brush bars, tracked chassis

The loss you already pay for

6months No rain to help May to October, dust from roads, veld fires and harvest drift builds on glass with nothing to wash it off.

8–25% Peak soiling loss What an uncleaned array gives up by late September — worst on the mine belt and on farms next to gravel roads.

0bowsers Water logistics The machines brush and scrape dry. No tanker hire, no borehole draw, no municipal allocation to argue for.

0m walked Micro-crack risk The robot carries its own load path across the frame. No crew on the roof, no rope access, no cracked cells.

Soiling model — Zimbabwe seasons

What the dry season
costs your array

Zimbabwe soiling is seasonal, not steady. November to March, rain does the cleaning for free. April onward, dust builds without interruption until the first storms return — and that peak lands right when tariffs and load-shedding make your own generation worth most. Set your array below.

Dust on glass, month by month

Your regime now

On a LUMEN schedule

JFMAMJJASOND

Performance ratio

Loss avoided: —%
Energy recovered: —MWh/yr
Value recovered: —/yr

Indicative estimate. Seasonal dust deposition profile for the Zimbabwean highveld, saturating at 25% loss, with rain-washing events through the wet season and full recovery at each clean. Cleans are spaced evenly, the first at the midpoint of its interval. The machines clean dry, so no water is drawn. Every quoted site is surveyed with on-array soiling sensors first.

Fleet

Two platforms.
One schedule.

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 all of them report to the same cleaning schedule.

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

Deployment

From survey to
first autonomous cycle

Each stage gates the next. Nothing runs unattended until the array has been mapped and the machine has completed a supervised pass with your site team watching.

Survey

Row geometry, pitch, frame gaps and access are mapped on site. Soiling sensors log the real dust rate on your glass — not a regional average, and not a number from a brochure.

1–2 days on site

Handover & training

The machine arrives with its remote, batteries, charger, toolkit and carry pack. Your operators are trained on the controls, on battery changes, and on the safety ropes the manufacturer requires above 15 degrees of pitch.

1 day, array live

Supervised pass

An engineer runs the full array with your operator on the remote, checking edge detection at every row end and setting the travel speed the soiling actually needs. Cleaning quality is signed off with your team.

1 day

Cleaning schedule

Passes run to your seasonal model — heavy through the dry months, light through the rains. Your operator drives the machine from the remote; the optional auto-path package plans the route itself on the units that support it.

Continuous

Technology

What we
build to

Precision

Four sensors read the panel edge and stop the machine at the end of every row before it reaches it. Course deviation from slip or wind is corrected within seconds, so a pass holds its line down a long table.

Innovation

Cleaning runs against a measured soiling curve for your site, not a fixed calendar — heavy through the dry months, light through the rains. Where the auto-path package is fitted, one machine plans and covers up to 18,000 m² a day.

Reliability

Travel motors lock within half a second of losing power, so the machine holds position on a pitched array instead of rolling. Nothing about it depends on a network connection, which on most Zimbabwean sites is the right assumption.

Efficiency

Cleaning paths from 1.2 to 1.8 metres and cycles from three to ten hours, so the machine is sized to the row rather than the row worked around the machine.

Sustainability

A brush and a scraper, run dry: no water drawn, no detergent, no run-off to recover. The array is maintained without a crew walking on glass, which is where micro-cracks start.

Next step

Find out what your
array is losing

Send us your capacity, location and mounting type. We come back with a soiling assessment, a seasonal cleaning schedule and a recovered-yield figure in US dollars you can put in front of your board — before anything is installed.

Request an assessment

Emailbradley@lumensolutions.co.zw Phone+263 77 252 8265 Weblumensolutions.co.zw BaseHarare, Zimbabwe ContactBradley Williams, Founder & CEO

Cleaner panels.Maximum output.

What the dry seasoncosts your array

Two platforms.One schedule.