Onshore Renewable Asset Support – UK
Hydrafly provides drone assisted wind turbine blade and tower cleaning services for onshore renewable energy assets across the UK.
Wind turbine blades and towers are exposed to a range of environmental conditions over time. Insects, airborne debris, algae growth and general environmental deposits can accumulate on turbine surfaces, particularly on sites located in coastal, agricultural or damp environments.
Build-up on blade surfaces can affect airflow across the blade profile, which may influence aerodynamic efficiency. Periodic cleaning can help maintain blade surface condition and support optimal turbine performance within structured maintenance programmes.
Turbine towers may also develop biological growth such as algae. In certain environments this can trap moisture against painted steel surfaces and contribute to localised corrosion over time. In addition to maintenance considerations, algae staining can make towers appear visibly dirty or poorly maintained.
Our heavy lift tethered multi rotor drone system enables safe access to turbine blades and towers up to 100 metres under CAA authorisation, without the need for scaffolding or complex access equipment.
What we provide
Wind turbine blade and tower cleaning can be deployed in several ways depending on asset condition and maintenance planning.
Hydrafly provides drone assisted support for wind turbine blade cleaning, turbine tower cleaning, de-icing application where required and 4K visual inspection support.
Cleaning can also be carried out ahead of inspection, repair or coating works to allow turbine surfaces to be assessed more clearly.
The service can be deployed as a standalone cleaning solution or integrated within wider turbine maintenance programmes, working alongside O&M contractors where required.
We work with specialist suppliers of environmentally responsible cleaning agents developed for wind turbine maintenance. These biodegradable solutions remove contaminants such as algae growth, insect residue, dirt and environmental deposits from turbine blades and towers.
Technical Capability
Hydrafly operates a Drone Volt Hercules 20 heavy-lift UAV, configured for tethered drone cleaning operations on large industrial structures and renewable energy assets.
Our system provides the following operational capability:
CAA authorised operations up to 100m AGL
Heavy lift tethered octocopter system
High pressure (3500 PSI) hot water cleaning capability
Integrated safety and recovery systems
This setup enables safe and controlled cleaning of wind turbine blades and towers without the need for scaffolding, cranes or rope access equipment.
Where Drone Cleaning Adds Value
Drone assisted wind turbine cleaning can support asset operators in several ways within ongoing turbine maintenance programmes.
It can be deployed between major rope access maintenance cycles, when blade contamination is affecting turbine performance, or where algae build up on towers is contributing to staining or corrosion risk.
Drone cleaning can also be used in preparation for inspection, repair or coating works, allowing turbine surfaces to be assessed more clearly by maintenance teams.
In situations where mobilisation of cranes, lifts or rope access equipment is impractical, drone assisted cleaning provides a flexible lower-intervention option that can be deployed quickly with minimal operational disruption.
The system is self-contained and requires only two operatives, reducing logistical complexity and enabling flexible scheduling across wind farm sites.
- 01What height wind turbines can you clean?
Hydrafly is authorised under our CAA Operating Safety Case to operate up to 100 metres above ground level. Higher hub height deployments can be discussed subject to site access strategy and regulatory approval.
- 02What environmental controls are in place?
Hot high pressure water is prioritised wherever possible to minimise chemical use. Where additives are required, environmentally considerate products are selected in line with site and land management requirements.
- 03How long does it take to clean a turbine?
Typically 1–2 turbines per day depending on turbine height, blade condition and weather conditions.
- 04Can you operate in high winds or cold conditions?
We can operate in wind speeds up to 31mph and temperatures down to -20°C, subject to site specific risk assessment and weather monitoring.
- 05Can drone cleaning be integrated with existing maintenance teams?
Yes. The system can be deployed independently or incorporated into structured maintenance programmes alongside existing site operations.