A strong converter track record
As the market grows from MW to GW projects, our manufacturing capabilities enable us to scale seamlessly.
years of power conversion
design experience
annual production capacity exceeding 15 GW
units of converters and rectifiers manufactured per year
Your full-scope converter partner
As a full-scope partner, we deliver customised and cost-efficient power converters designed to meet even the most demanding specifications.
With our agile global value chain and deep manufacturing expertise, we enable rapid development of new converter technologies that meet the highest standards of quality, reliability, and grid compliance.
Our dedicated customer teams provide comprehensive, end-to-end support — from design and production to servicing and lifecycle management.
We ensure easy access to spare parts, and offer lifetime support for critical components, including repair and retrofit services that extend the operational life of each system.
Power conversion solutions
Cost-efficient power conversion solutions designed to meet customer requirements.
Power Converters
As an end-to-end partner, we provide tailored, cost-efficient DfiG and full-scale power converters engineered to satisfy even the toughest specifications.
Converters tailored to your needs
KK Group has a long history of manufacturing converters on a global scale for the biggest turbine OEMs.
Our converters are specifically tailored for each application, built on simple and reliable designs. To ensure optimal performance, we collaborate with several suppliers, aiming for cost-effective solutions without compromising quality.
We continually strive to enhance performance throughout the converter's lifecycle, incorporating improvements from the initial design and future upgrades. Our unique facilities allow for tailored tests to achieve the best possible results.
Additionally, we ensure easy access to replacement parts and lifetime support of critical components, including repair and retrofit services.
Your full-scope power conversion partner
We deliver tailored, cost-efficient power converters for demanding applications, combining reliability with high performance.
System integrator
Deep understanding of wind and hydrogen systems, including their seamless integration.
Proven innovation
Strong power conversion R&D capabilities backed by a proven delivery track record.
Optimised design
Optimised designs that reduce cost, complexity, and ensure a low failure rate.
Scalable manufacturing
Manufacturing capabilities to support scaling from MW to GW projects.
Grid compliance
Converter systems engineered to meet specific grid codes and regulatory requirements.
Lifecycle support
End-to-end support, including servicing, spare parts, repairs, and lifetime component support.
Proven performance in renewables
With a strong legacy in the renewable energy sector, KK Group is the largest converter manufacturer in the global wind industry.
We partner with the world’s leading turbine OEMs, supporting them in scaling technologies from prototype to gigawatt-scale production — backed by an annual manufacturing capacity exceeding 20 GW.
Beyond wind, we are also a trusted supplier of power supplies and rectifiers for the world’s foremost hydrogen and electrolyzer system manufacturers.