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The RB4+ is SolarOptim's latest innovation for fast adaptable solar panel cleaning.

RB4+

The RB4+ is a specialized machine designed for utility-scale solar panel cleaning, specifically tailored for use with ground-mounted single-axis trackers or fixed tilt systems with panels arranged in 1P configuration.

Key Features

Adaptable – The RB4 adjusts to a wide range of panel sizes.

Effective – It restores power production with a wet clean rotary brush.

Minimize water usage - Fine-tune water use to match soiling levels.

Safe – Its lightweight dielectric design ensures safety for operators and modules.

Terrain friendly – It navigates rows inaccessible to tractor systems.

Tracker navigation – Operator steps over tracker drives without the need for reversing.

Simple – Crews can be quickly trained for effective operation.

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Adaptable

RB4+ adapts to your panel sizes. With RB4+ there is no need to buy a new robot for every solar farm. Crews can quickly adjust the RB4+ in the field to accommodate panel lengths of 1900 - 2500 mm. Our extended end plates allow us to navigate larger gaps in the arrays without stopping.

Unlike competitors who are unable to adapt to various lengths

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Tracker Navigation

Popular single-axis tracker systems often incorporate drive shafts and/or cable trays that interconnect rows, posing a barrier for tractor-mounted cleaning systems. This forces them to reverse or risk damaging sensitive ground cover, particularly with skid steers. Consequently, this leads to decreased cleaning productivity and potential costly damage to solar infrastructure.

RB4+ operators can easily step over most obstructions without needing to reverse or cause damage to the solar plant.

Obstacle Navigation

This rock-lined drainage ditch is one of many obstacle examples encountered. In this example the ditch needs to be traversed 500 times for farm cleaning, rendering it impassable for tractor-mounted cleaning systems.

With RB4+, operators can carefully navigate through this ditch with minimal impact on the cleaning rate and without disturbing site drainage.

Rotating Brush

The RB4+ is equipped with a rotating nylon brush designed for effective wet cleaning of PV panels. Brush speeds can be adjusted to accommodate soiling levels and the pace of cleaning.

Operator Safety

The RB4+ is equipped with dielectric lift and push handles, as well as wireless remote controls, to isolate the operator from electric shock. Emergency shut-offs and deadman switches further enhance operator and plant safety. Our lightweight design and travel system minimize crew fatigue and simplify the lifting and shifting of the RB4 from one array to the next.

Wet Wash / Water Use

The RB4+ integrates an adjustable nozzle system that works alongside the rotary brush to achieve optimal cleaning performance, especially on complex soiling. This system allows for fine-tuning of water usage to match soiling levels and cleaning rates, thus reducing water consumption and the associated cost of transporting clean water to solar farms.