Secure PV solutions for commercial and industrial applications.
We’ve got you covered. Experience the difference.
Your reliable partner since 1965.
Personal service – available on-site and by phone
Reliability is no coincidence.
Commercial and industrial PV systems must operate profitably—every day. Downtime means direct losses and unnecessary operational effort.
In practice, however, issues often arise not from the technology itself, but from a lack of support, overly complex systems, and unclear responsibilities.
REFU creates clarity—with reliable technology, direct service, and system solutions that work in everyday operations.
- with reliable technology,
- direct service, and
- well-designed system solutions.
Reliability you can count on
Our inverters are specifically designed for repowering projects and can be flexibly integrated into existing systems.
They enable both straightforward replacement and targeted system optimization.
Personal support
Direct contact with experienced technicians—no ticket systems or waiting loops.
High-quality components
Reliable hardware and well-thought-out details—from connectors to system architecture.
Direct access to experts
Work directly with experienced technicians—no intermediaries, no delays.
Fast response times
Short paths, quick decisions, and direct support—exactly when it’s needed.
Free replacement unit
In service cases, you receive a replacement unit quickly and without hassle—free of charge.
Design support
We support you from the planning stage—for efficient and well-structured system solutions.
Free monitoring. Full control.
Keep your system in view at all times—and take action whenever needed. With REFU, monitoring, control, and service are combined into one seamless system solution.
REFUlink – Control & Integration
Connects all components of your system and enables centralized control. Existing systems can also be integrated without any issues.
REFUview – Monitoring
Real-time data, system overview, and automated analytics—available anytime, anywhere. Permanently free to use.
Hosting & Data Security
Developed, operated, and hosted in Germany—for maximum data security and control.
The right solution for your system.
From standard commercial rooftops to industrial applications—our inverters deliver high efficiency, flexible system design, and reliable operation throughout the entire lifetime of your installation.
REFUsol 20K-2T/3T
New flexibility meets compatibility.
REFUsol 25K/33K-3T
Red at heart, green at the finish line.
REFUsol 50K-4T
The control center of tomorrow.
REFUsol 110K-10T
The innovative solution for commercial and industrial PV systems.
REFUsol 125K-10T
Innovation that flows.
REFUsol 250K-6T
Reliable. Connecting. Visionary.
System Planning & Monitoring
REFU Software tools provide data setup solutions for PV installation.
During operating your PV system REFUlog ensures reliable system communication and monitoring.
Each REFU inverter has an integrated data logger and can be connected to our cloud-based monitoring portal.
Successfully implemented in commercial and industrial applications.
REFU is used in PV projects of all sizes — from commercial rooftops to large-scale industrial installations.
“The combination of reliable technology, direct support, and ease of use has significantly simplified and accelerated our processes.”
Project manager, Pohlensolar
C&I reference project – Pohlensolar
PROJECT
Germany
APPLICATION
Commercial & Industrial
INVERTERS
REFUsol (mixed generations)
INTEGRATION
REFUlink + REFUview
Pohlensolar implements PV systems nationwide for major food retailers and discount chains. The focus is on efficient operation, minimal downtime, and ease of use for their own technicians.
This is exactly where REFU proved convincing—with reliable technology, well-designed system integration, and direct support in day-to-day operations.
A key advantage is repowering in mixed operation: existing and new REFU inverter generations work seamlessly together. When replacing individual units, parameters no longer need to be transferred manually—settings and even production history are retained.
With REFUlink and REFUview, systems can be centrally monitored, analyzed, and controlled. For technicians, this means fewer on-site visits, reduced effort, and significantly more efficient workflows.
With this combination of technology, ease of use, and personal support, Pohlensolar has significantly streamlined its processes—and is well prepared for future projects.
- Mixed operation of old and new inverter generations without additional effort
- Remote analysis and parameter management via REFUlink and REFUview
- Time savings through automatic parameter transfer and retention of production history
- Direct technical support and hands-on training on site
Let’s work together to optimize your system.
REFU is not just a supplier, but a technical partner for your PV infrastructure.
Analysis of your existing plant and identification of opportunities for optimization
Development of future-proof solutions for repowering and expansion
Direct access to experienced service technicians
Prompt support for technical challenges