OEM Reliable converter solutions for every stage of your turbine’s life
Your global partner for lasting wind performance
With deep expertise in wind energy and power conversion, we deliver reliable, flexible, and cost-effective aftermarket solutions, from fast global spare parts delivery to lifecycle-focused upgrades, repairs, and platform-independent service. Our mission is to help operators maximize performance, reduce downtime, and extend the lifetime of their wind assets.
Engineering excellence
and comprehensive solutions
As a leading platform-independent partner, we offer a full range of products and services dedicated to frequency converters for wind turbines.With over 24,500 installations and more than 25 years of combined experience in production, maintenance, and service, we bring unparalleled expertise to maximize the operational safety and efficiency of your wind turbines throughout their entire lifecycle.
years of experience
converters installed globally
installed power
customers worldwide
countries with installations
Over 30 years of converter excellence
Since 1997, we have been dedicated to advancing frequency converter technology for wind energy. From our origins as SEG to today’s ConverterTec, our journey is marked by strong partnerships, strategic growth, and continuous innovation to ensure reliable performance and long-term value for our customers worldwide.
Why customers trust us
Fast and reliable spare parts delivery
- Spare parts shipped within 24 hours
- Global stock availability and obsolescence management
- Repair and retrofit options for obsolete components
Cost-effective, lifecycle-oriented solutions
- Upgrades and retrofits improving LCOE (Levelized Cost of Energy)
- Continuous product improvements and innovation
- In-house test-bay infrastructure ensuring quality
Flexible, customized support
- Full aftermarket offering: spare parts, service, repairs, training
- Flexible repair and delivery options for electronic components
- Close customer collaboration and responsive support
Expert engineering & development
- 24/7 global on-call support
- Strong troubleshooting capability and safety-first approach
- Engineering support for complex converter challenges
Our locations
Global presence, local responsiveness
ConverterTec Aftermarket & Service
Bulgaria
info@convertertec.com
+359 88 406 5917
234 Botevgradsko Shose
Office 15
1839 Sofia, Bulgaria
ConverterTec Aftermarket & Service
Germany
kemp.service@convertertec.com
+49 2152 145 398
Krefelder Weg 47
47906 Kempen, Germany
ConverterTec OEM
Poland
krakow@convertertec.com
+48 12 342 31 00
Ul. Trakt Ojca Św. Franciszka 1
32-002 Brzegi, Poland
With a global network and a new repair center in Bulgaria, ConverterTec ensures fast support and local expertise. Our teams drive innovation, deliver critical parts, and keep converters performing at their best worldwide.
Responsibility for a sustainable future
We take our responsibility for quality, safety, and sustainability seriously. Certified to ISO 9001, we uphold the highest standards while working toward a cleaner, more efficient future.
Through innovative technologies, climate initiatives, and local support, we aim to make a real difference, step by step, together.
Latest news
Fresh news. Real stories. Proven case studies.
-
Updated company website is now live
ConverterTec Aftermarket & Service has launched an updated company website aimed at providing a clearer and more user-friendly experience for all visitors. The new platform
-
Spreewindspiegel features ConverterTec in its Windenergietage 2025 edition
Spreewindspiegel, the official magazine of Windenergietage 2025, has featured ConverterTec in its latest issue. The article focuses on how modern converter upgrades and retrofit solutions
-
ConverterTec featured in latest Industry Report by the German Wind Energy Association
ConverterTec has been featured in the latest industry report published by the German Wind Energy Association (Bundesverband WindEnergie, BWE), one of the leading voices in
Power tomorrow with us!
At ConverterTec, we’re driving the shift toward smarter, cleaner, and more sustainable energy solutions. After years of successful growth, we’re now focused on shaping the future of renewable energy. That’s why we’re looking for passionate people who want to make a real difference, innovators, problem-solvers, and visionaries ready to power a greener tomorrow.
Explore our open positions and help us build a future where energy is smarter, cleaner, and sustainable for all.
Looking for more details?
Our experts are just a click away.