Робот Sparrow от Clobotics ремонтирует лопасть морского ветряка за 27 минут

Chinese AI company Clobotics (扩博智能) and Danish energy company Ørsted announced in July 2026 that their robot Sparrow cut the repair time of a single offshore wind turbine blade to 27 minutes at the Horns Rev 2 wind farm — up to 10 times faster than previous maintenance, while cutting costs by 50–75%.

What the Sparrow robot can do

The Sparrow robot automatically repairs wind turbine blades right out at sea, without sending rope-access technician crews up to heights of many meters. At the Danish Horns Rev 2 wind farm, it restored one blade in 27 minutes, and in a single day it managed to process up to eight blades — a pace manual maintenance could not match. Previously, this kind of repair required stopping the turbine and lowering rope-access technicians on ropes, or bringing in a crane vessel, and the work stretched over hours and depended on sea weather.

Clobotics is known for AI inspection systems for wind turbines using drone imagery; Sparrow is an evolution of that approach — from diagnostics to automatic repair: the system itself finds coating defects on the blade, plans a trajectory, and carries out the treatment.

• Repair time for one blade — 27 minutes (a new industry record)
• Up to 8 blades in a single day
• Maintenance efficiency gain — up to 10x
• Reduction in work costs — by 50–75%
• Site — the Horns Rev 2 offshore wind farm (Denmark)

Why is blade repair so expensive?

Maintaining offshore wind farms remains one of the most costly line items in their operation: accessing blades at height and out at sea requires vessels, cranes, and rope-access crews, and the weather window for work is narrow. The leading edges of blades at sea wear quickly under the impact of rain, salt, and sand, so regular coating repair is critical for aerodynamics and energy output — the longer a turbine waits for a crew, the greater the shortfall in output. The Sparrow robot removes much of this burden: according to Clobotics and Ørsted, automation speeds up repairs by up to tenfold and cuts their cost by 50–75%.

Ørsted is one of the world's largest operators of offshore wind farms, so the technology proven at Horns Rev 2 could scale across dozens of its sites.

The project at

Horns Rev 2 cut the repair of a single blade to 27 minutes and made it possible to service up to eight blades per day — according to a statement from Ørsted cited by the outlet 36Kr.

What this means

Robotic blade repair is shifting offshore wind maintenance from a manual mode to an automated one. If the Horns Rev 2 results — 27 minutes per blade — are replicated at other sites, operators will be able to reduce turbine downtime and lower operating costs. For an industry that is growing fast and facing a shortage of qualified rope-access technicians, robotic maintenance reduces both costs and the reliance on people working at dangerous heights.

Frequently Asked Questions

What is the Sparrow robot?

Sparrow is a robot made by Clobotics for the automatic repair of wind turbine blades. It works directly on offshore turbines and, according to Ørsted, restores one blade in 27 minutes.

How much does the robot speed up wind farm maintenance?

At the Horns Rev 2 wind farm, Sparrow raised maintenance efficiency by up to 10x and cut repair costs by 50–75%, processing up to eight blades per day.

Where was the Sparrow robot deployed?

The project was carried out at the Danish offshore wind farm Horns Rev 2, which belongs to the energy company Ørsted.