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RSAVP: Unified Substation Control

Anton Krupskii

Published on 18 Nov, 2025

RSAVP: Unified Substation Control

One Platform. All Applications. Zero Compromise.

As substations evolve toward fully digital, IEC 61850-based architectures, the number of station-level applications continues to grow: SCADA servers, HMI systems, gateways, engineering tools, cybersecurity components, historians, and analytics workloads. Traditionally, each of these functions required its own dedicated physical device – creating a fragmented, complex, and costly stack.

The Welotec RSAVP changes this completely.

With high-performance compute, large memory capacity, and full substation hardening, the RSAVP consolidates the entire station-level environment into a single virtualization platform, reducing complexity while increasing availability and security.

All Station-Level Applications, One Virtualized Platform

On the RSAVP, utilities and system integrators can virtualize:

  • SCADA servers
  • Hot-standby control servers & redundant HMI systems
  • Gateways & protocol converters (IEC 60870-5-104, DNP3, ICCP)
  • Engineering tools (SICAM PAS, PCM600, DIGSI, OpenSCD)
  • Historian and analytics databases
  • Domain controllers, jump servers, cybersecurity components

Each application runs securely in its own VM — easier to manage, update, and replicate.

Why the RSAVP Is the Ideal Virtualization Platform

  • Up to 64 cores → plenty of headroom for parallel SCADA and gateway workloads
  • Up to 512 GB RAM → supports dozens of virtual machines
  • IEC 61850-3 & IEEE 1613 certified → purpose-built for harsh substation environments
  • Hardware-level PRP/HSR redundancy → uninterrupted station communication
  • Active cooling & rugged design → reliable 24/7 operation

The result: a stable, powerful compute layer that handles SCADA spikes, historian loads, and engineering sessions without interruptions.

The Benefits for Utilities and Integrators

  1. Significant Cost & Hardware Reduction

    One RSAVP can replace:
  • Up to 10 SCADA/HMI/engineering PCs
  • Dedicated gateway hardware
  • External compute nodes for analytics

    This lowers CAPEX, simplifies maintenance, and reduces space in control cabinets.
  1. Faster Engineering & Deployment

    Virtual machines can be:
  • Cloned
  • Snapshotted
  • Rolled back instantly
  • Pre-configured for new substations

    This makes multi-site rollouts dramatically faster.
  1. Improved Cybersecurity

  • One hardened platform to patch
  • Controlled and isolated VMs
  • Unified access management
  • Easier compliance with NIS2, IEC 62443, NERC CIP
  1. High Availability

    With redundant RSAVPs, SCADA and HMI applications switch over automatically — no downtime, no data loss.

A Foundation for the Software-Defined Substation

Virtualizing the station-level environment is a crucial step toward fully software-defined substation automation. The RSAVP offers the performance and reliability to support every station-level application today — and the scalability to host the advanced digital services of tomorrow.

With Welotec RSAVP, utilities can standardize their architecture, simplify their engineering workflows, strengthen security, and ensure the stability of critical grid infrastructure.

Expert

Anton Krupskii

Vice President Digital Substation at Welotec GmbH

Anton is an expert in substation automation and smart grid technology.

With extensive experience in international development and a strong focus on cybersecurity, virtualization, and energy transition, he drives innovation and actively shapes the future of industrial automation.

Anton Krupskii, Vice President Digital Substation at Welotec GmbH, expert in substation automation, smart grid technology, and energy transition.