Power Supply Unit
End-to-end Power Supply Units for green hydrogen production.
We develop and manufacture high-efficiency, end-to-end Power Supply Units to power electrolyzers in green hydrogen plants.
Powering the future of green hydrogen
Producing cost-effective and reliable green hydrogen is achieved by customising the Power Supply Unit to various plant-specific requirements.
Designed specifically for green hydrogen plants, our Power Supply Units (PSUs) are customised to meet electrolyzer, grid, and plant requirements.
We leverage proven products and expertise from the wind industry to help electrolyzer OEMs and project developers reduce costs and complexity, delivering customisable Power Supply Units with exceptional efficiency and reliability.
Built for cost-effective customisation, our Power Supply Units ensure a precise fit with your plant’s technical and operational requirements, contributing to a lower Levelised Cost of Hydrogen (LCOH).
MAXIMUM EFFICIENCY & RELIABILITY
End-to-end Power Supply Units
Customisation options include transformer type, AC connection, rectifier variant, control system, cooling solution, and configurations for indoor or outdoor installation.
1MV Switchgear
Optional configuration
AC Connection
Busbar or cable configurations are available
Outdoor Protection
Optional: Enhanced IP rating and corrosion protection for outdoor use
DC Outlet
Available with top or bottom terminals for connection via busbar or cables
Cooling System
Optional: Liquid/liquid or liquid/air
Step-Down Transformer (12-15 MVA)
Optional: Enclosure available
High DC Voltage Rectifier
Various PWM controlled AC/DC rectifier configurations available
Rectifier Controller
Footprint
Various SKID solutions and layout available
Optional configuration
Busbar or cable configurations are available
Optional: Enhanced IP rating and corrosion protection for outdoor use
Available with top or bottom terminals for connection via busbar or cables
Optional: Liquid/liquid or liquid/air
Optional: Enclosure available
Various PWM controlled AC/DC rectifier configurations available
Various SKID solutions and layout available
Key benefits
Cost-effective customisation
Our modular PSU design ensures easy customisation and technical adaptation to match any green hydrogen plant size, operational range of electrolyzer, and grid requirements.
Compact footprint
We design your PSU to meet challenging layout requirements and provide containerised or skid-mounted options, lowering infrastructure costs and ensuring minimum installation effort.
Seamless grid integration
Utilising software models and simulating grid disturbances for steady-state and dynamic power performance, we work closely with you to anticipate grid compliance issues.
Flexible upscaling
Our modular approach provides scalability and flexibility for green hydrogen plants to start small and expand as demand grows, supporting projects from megawatt-scale to gigawatt-scale.
Bankable warranties
We deliver exceptional efficiency and reliability, allowing us to offer performance-based warranties that reduce technical and financial risks for developers and strengthen investor confidence.
Industrialisation experts
As the leading converter manufacturer in wind, we apply our global manufacturing scale and industrialisation expertise to deliver reliable, cost-effective Power Supply Units.
Customising to your specific requirements
Customised to balance plant-specific requirements, electrolyzer specifications, and grid requirements.
Our Power Supply Units meet diverse technical and operational needs: from output demands and complex layouts to electrolyzer operational ranges and compliance with TSO or regional grid requirements.
With a modular design approach, we offer full flexibility to configure indoor or outdoor installations and select the optimal components for your green hydrogen plant. Options include transformer types (dry or oil), AC connections (busbar or insulated cables), rectifiers, control systems, and cooling solutions
This flexible approach guarantees a Power Supply Unit fit for your plant’s technical and operational requirements.
PSU design examples
Designed for seamless site integration, our Power Supply Units accommodate even the most challenging indoor or outdoor layout requirements, including customised solutions for SKID-mounted installations.
Modularity as the backbone for customisation
Modular building blocks enable faster time-to-market and more cost-effective power supply solutions.
Our Power Supply Units use scalable, standardised components that can be combined and customised to meet plant-specific, electrolyzer, and grid requirements.
Designed for extensive pre-configuration, our Power Supply Units are pre-assembled and tested in controlled factory environments, eliminating the need for on-site functional and operational testing and accelerating time to operational readiness.
Offering exceptional flexibility, our modular design approach is ideal for industrial-scale green hydrogen production, supporting faster deployment and more reliable integration into large green hydrogen plants.
Case story:
Powering Sunfire’s 100 MW electrolyzer system
KK Wind Solutions will supply customised Power Supply Units for Sunfire’s 100 MW electrolysis plant, part of one of Europe’s largest green hydrogen projects in Germany.
Sunfire selected KK Wind Solutions for their ability to deliver tailored PSUs that convert electricity from the grid into stable, efficient power for the electrolyzers, meeting specific grid and plant requirements.
With production already underway, including testing and quality verification, this partnership sets the stage for future large-scale green hydrogen projects.
Rectifiers designed with high efficiency
Developed specifically for green hydrogen application, our rectifiers are customised to your electrolyzer’s operational range, and plant-specific output.
Case story:
3 MW PSUs for alkaline electrolyzers
Stiesdal Hydrogen launched its green hydrogen electrolyzer plant in Glansager, Denmark, with KK Wind Solutions supplying 3 MW power and control systems.
Stiesdal Hydrogen partnered with KK Wind Solutions to develop an end-to-end Power Supply Unit for an alkaline electrolyzer. The first system was delivered to a Power-to-Gas plant in Glansager, southern Denmark.
The plant converts surplus CO2 from the biogas process into additional biogas, using green hydrogen from the electrolyzer and a biological process.
KK Wind Solutions delivered multiple 3 MW Power Supply Units, control system hardware, and integrated software applications.
SERVICES & SUPPORT
Complete plant lifecycle support
We support PSUs throughout the entire plant lifecycle, from feasbility to operations, helping optimise performance and reduce the Levelised Cost of Hydrogen (LCOH).
Grid integration service
With expertise in grid compliance and integration simulation, we ensure seamless grid connection. Our PSUs are also designed for fast installation and easy servicing to minimise downtime risks.
High-expertise support
Our dedicated support hotline provides access to expert assistance. With advanced troubleshooting tools, our team can quickly identify and resolve issues, keeping your operations running smoothly.
Reliable spare parts
To ensure uninterrupted operations, we offer tailored spare parts packages that let you store critical components with us or receive them directly, enabling seamless replacements when needed.
Proactive maintenance
Our maintenance services cover liability, monitoring, and preventive maintenance. Customisable on request, they ensure your PSU performs reliably and operates at peak efficiency.
Discover our end-to-end Power Supply Units designed for green hydrogen production.
Connect with a specialist to explore customised Power Supply Units designed for your plant’s specific needs.