System solutions for future-ready utility-scale solar projects
Others supply inverters. REFU provides an integrated ecosystem.
REFUsol, REFUlink and REFUview connect performance, communication and monitoring — with German data hosting and engineering.
New Requirements for Utility Infrastructure
New regulatory frameworks, increasing cyber risks and growing system complexity are significantly reshaping the requirements for utility-scale PV infrastructure. Large solar parks today operate as interconnected systems with numerous interfaces, communication pathways and data flows.
For operators, this means that alongside performance and availability, data security, clearly defined access concepts and a transparent system architecture are moving into focus. Security is not created by individual components, but by a structured and controllable overall architecture.
Cybersecurity & Access Control
Connected PV systems demand clearly structured access management and a secure architecture.
Data Sovereignty & Infrastructure
Data location and controlled access are key factors in protecting critical energy infrastructure.
System Complexity in Large-Scale Plants
Growing plant sizes increase operational complexity and require clearly structured system architectures.
Regulatory Compliance & Verification
Stricter regulations require technically verifiable security and transparent system design.
A Growing Topic Across Industry Media
Leading industry publications are increasingly highlighting the rising importance of data security, system governance and operator accountability in the utility-scale energy sector. As PV infrastructure becomes more connected and data-driven, these topics are moving from technical detail to strategic priority.
pv magazine | Jan. 2026
The debate around cyber risks and critical infrastructure is reaching the inverter industry.
Security and origin-related issues are increasingly being evaluated from a regulatory perspective.
pv magazine | Jan. 2026
With the implementation of NIS2, the requirements for operators of energy-related infrastructures are increasing.
Documentation, access control, and system architecture are becoming auditable and subject to mandatory reporting.
Solarserver | Jan. 2026
PV systems are networked infrastructures with an expanding attack surface.
Security concepts therefore need to be designed at the system level rather than solely at the component level.
System control starts with the right architecture.
REFUsol, REFUlink and REFUview create a controllable and scalable infrastructure designed for utility-scale projects — connecting performance, monitoring and secure system governance.
Utility-Scale String Inverters
REFUsol — a high-performance platform built for large solar plants
REFUsol 110K-10T
Innovation that flows.
REFUsol 125K-10T
Innovation that flows.
REFUsol 250K-6T
Reliable. Connecting. Visionary.
System Control & Monitoring
REFUlink and REFUview connect performance, communication and transparency into a controlled system architecture.
REFUlink — The Interface for System Control
REFUlink brings inverters, communication and monitoring together into one manageable control layer. It collects plant data, structures it and securely transfers it to REFUview — even within mixed system environments.
Centralised parameter configuration, active power control and structured data handling enable true system-level control, designed to scale across large utility PV infrastructures.
- Centralised configuration of all inverters
- Data transmission via RS485 & Ethernet
- 16 GB local data storage
- Active power control & DRM interface
REFUlink grows with your project. The Core, Plus and Ultra variants cover a wide range of plant sizes — from compact solar parks to complex utility-scale infrastructures.
One interface. Full control.
REFUview — Transparency at System Level
REFUview is the central platform for monitoring and remote operation of PV infrastructure. It consolidates all plant data within a clearly structured interface, delivering full visibility into performance, status and system events.
Real-time data, automated alerts and a traceable system history support informed decision-making — both in daily operation and during fault scenarios.
At the same time, REFUview enables structured documentation of operating states and parameter changes, creating a reliable foundation for efficient asset management and long-term performance optimisation.
- Central platform for monitoring & performance analytics
- Real-time data and automated alarms
- Remote access to system parameters
- Secure cloud infrastructure, hosted in Germany
Transparency. Traceability. Control.
