Our Medium & High Voltage teams deliver expert electrical services that keep wind turbines and substations operating safely and efficiently. From installation and commissioning to maintenance, testing, and troubleshooting, we provide complete high-voltage solutions for wind energy projects across Europe, North America, and Asia.
With multi-platform experience and rigorous testing methods, we ensure that every connection, from turbine to substation, meets the highest safety and performance standards.
We manage the installation and commissioning of medium and high voltage systems with precision and safety as our top priorities. Our specialists handle every step: from HV cable pulling and terminations to switchgear setup and system commissioning. With certified teams experienced across multiple turbine platforms, we ensure seamless integration between wind turbines, transformers, and substations.
To maintain optimal performance and prevent costly downtime, we provide comprehensive maintenance and repair services for high-voltage systems. Our capabilities include HV switching operations, oil sample analysis, and protection relay maintenance. We also perform regular transformer and converter servicing and deliver rapid troubleshooting support to resolve issues safely and efficiently in the field.
Reliable power depends on rigorous testing and inspection. We use advanced diagnostic equipment — including high-voltage test sets, partial discharge testers, and VLF testers — to verify the integrity of every component. Our teams also conduct current transformer (CT) testing, protection relay verification, and grounding tests to ensure systems meet all safety and performance requirements.
Wherever the wind takes us, we deliver trusted service, skilled teams, and lasting results for the global wind industry — driving a cleaner, more sustainable tomorrow.
Our electrical capabilities are strengthened by Endiprev, an MV/HV expert that joined Muehlhan Wind Service. Since 2009, they have completed 500+ projects worldwide, delivering technically excellent services for onshore and offshore wind. Our integrated teams provide high-quality commissioning, maintenance, and engineering solutions, backed by internationally recognized certifications and a strong safety culture.
Skilled professionals trained in the latest mechanical, electrical, and HSEQ standards to ensure quality and safety.
From pre-assembly to commissioning, we deliver every phase on time, within budget, and to OEM specifications.
Scalable teams and equipment tailored to each site’s requirements for smooth coordination and minimal downtime.
We bring consistent quality and compliance to every onshore and offshore project — wherever the wind takes you.
Explore 500+ completed wind projects across three continents and find your inspiration on our interactive map.
“We’reveryhappywithourcooperationwithMuehlhanWindService.Theirteambringsstrongtechnicalknowledgeandatrulycollaborativemindset,alwaysthinkingalongwithustofindthebestsolutions.Itwasalsoagreatadvantagethattheycouldprovidethenecessaryequipmenttoperformon-sitetesting.”
With proven experience in wind turbine high-voltage systems and substations, Muehlhan Wind Service ensures every installation operates efficiently and in full compliance with international standards. If you’re curious about our Medium & High Voltage capabilities, let’s get in touch to talk about how we can power your next project. Contact us today.