Anja Vogel, the Lead Maintenance Planner for North German Wind Power (NGWP), stared at the red alert on her screen. The bearing temperature on Turbine 7 at the offshore Bremen Breeze farm was spiking. If it failed, the rotor would seize, costing €50,000 an hour in lost energy and another €200,000 in emergency repairs.

She closed her laptop. The wind was picking up. Turbine 7 was spinning at full capacity.

They landed the drone on the turbine’s nacelle platform with two minutes to spare. Hans and his team, guided by the AR headset (powered by for ultra-low latency), replaced the bearing in a record 47 minutes.