Zum Inhalt springen

One language for all giants.

Maximum Uptime. Zero Compromise. We combine cross‒manufacturer expertise with specialized precision. Whether it’s Vestas, Siemens Gamesa, Senvion, REpower, or GE—we know the DNA of your fleet.
We know your fleet. And we're getting ready for the next one.
Siemens Gamesa logo in white
Denker Wulf logo in white
BKW logo in white
Connected Wind Services logo in white
Our service technicians are not only certified—they are also experienced. Through years of collaboration with industry leaders such as Siemens, Deutsche Windtechnik, and Connected Wind Services, we have built up in-depth expertise across all common platforms. We bring the specific tools and precise inspection protocols for every type of turbine right to the site.

Specialized system knowledge.

Icon of a rotating rotor on a wind turbine

Transmissions & Generators

Alignment and measurement at Senvion, GE, and Vestas.
Icon of a spinning rotor

Pitch & Control Systems

Focus on the Vestas V-Series (cylinder replacement) and hydraulic oil changes.
Icon of a power plant converter

Converters & Infrastructure

Maintenance and troubleshooting of complex electrical systems up to 36 kV.

Is your portfolio growing?

We grow with you. HARU adapts to new technologies. When you add new types of wind turbines to your portfolio, we ensure that our team is ready to go right away through targeted training. We are your partner for the future of wind energy.
Take advantage of our multi-brand experience.
Engineering Excellence for Your Wind Energy Fleet. Maximum Uptime. Zero Compromise.
Certified Quality:
Seal Global Wind Organizsation
Seal 36kV and Seal DGUV-V3
All rights reserved © 2026 HARU Service GmbH.