refupower

REFUpower

  • Seamless Backup & Peak Shaving
  • Smart Energy Management System: Integrated EMS for intelligent load balancing, tariff optimization, and remote diagnostics.
  • Smart Thermal Management: Intelligent liquid cooling and comprehensive fire protection for ultimate safety.
  • Easy Deployment: Simple installation.
  • Remote Monitoring & Updates
Data Sheet
User Manual
EN

When downtime is not an option and every kilowatt matters, trust the REFUpower 120K-50H to deliver more than just backup power. Engineered for Commercial & Industrial (C&I) applications, it doesn’t just store energy — it powers possibilities.

Built for Today’s Industrial Challenges

The Smart Choice for Industrial Energy Storage

The REFUpower 120K-50H is your one-stop energy storage solution for microgrids, standalone systems, and sector coupling projects. It enables dynamic tariff management, investment deferral through peak shaving, and seamless replacement of diesel generator systems. Whether you’re operating in manufacturing, logistics, or critical infrastructure, we ensure your energy is always under control.

REFUsol 50K-4T

50 kW string inverter for high-performance C&I PV systems

  • 4 MPP trackers for flexible system design
  • 150% DC/AC oversizing
  • Max. efficiency up to 98.8%
  • Integrated DC surge protection (Type I + II)
  • Optimized for repowering and mixed systems

Optimized for the following applications

Also suitable for smaller projects
For project developers and operators

→ Utility

C&I

Commercial, industrial, and rooftop PV systems
For businesses and energy providers

→ C&I

Integration into existing PV systems
For operators of existing installations

→ Repowering

High-performance inverter for flexible PV systems

The REFUsol 50K-4T is a compact string inverter designed for commercial and industrial PV systems as well as repowering projects. With 4 MPP trackers, it enables flexible string design and stable energy yields even in demanding system layouts.

Its robust design with optional AFCI and integrated DC surge protection ensures reliable operation. In combination with REFUview, the inverter can be seamlessly integrated into both new and existing systems.

Technical advantages and applications

Maximum flexibility

  • 4 independent MPP trackers
  • Flexible string design
  • Suitable for complex C&I systems

High power density

  • 50 kW output power
  • 150% DC/AC oversizing
  • Max. efficiency up to 98.8%

Reliable operation

  • IP65 protection class
  • Operating temperature up to +60°C
  • Robust design for demanding environments

Advanced features

  • Integrated DC switch
  • DC surge protection Type I + II
  • AFCI (optional) for arc fault protection

The performance and flexibility of the REFUsol 50K-4T are proven in numerous C&I and repowering PV projects   → View references

Technical data at a glance

All technical specifications, connection data, and operating parameters can be found in the datasheet.

Seamless integration into your PV infrastructure

Der REFUsol 50K-4T lässt sich einfach in neue und bestehende PV-Systeme integrieren. In Kombination mit REFUlink und REFUview ermöglicht er eine zuverlässige Überwachung und flexible Steuerung von C&I-Anlagen.

Monitoring

Real-time monitoring with REFUview
Central platform for system overview, performance analysis, and fault diagnostics in real time.

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Control

Power control via REFUlink
Active and reactive power control via Modbus TCP/IP, as well as compliance with grid requirements via DRM interfaces.

→ Learn more about REFUlink

Integration

Integration into existing systems
Seamless integration into existing control systems as well as support for mixed inverter generations.

Technical consultation for your PV project

Speak with our team about your requirements – from system design to integration into existing PV infrastructures.