Industries — Substations
Substation Solutions
Ensuring Reliable Power Distribution
We provide comprehensive solutions for high-voltage and medium-voltage substations, focusing on reliability, safety, and efficient power distribution.
Our Capabilities
What We Deliver
Design & Engineering
- Protection & control system design
- Single-line diagram development
- Equipment specification
- Grid compliance engineering
Automation
- SCADA system implementation
- IEC 61850 integration
- RTU configuration
- Communication system design
Commissioning
- Protection system testing
- Control system validation
- Performance verification
- Grid code compliance testing
Track record
Selected projects
- 2025
220 kV Substation Protection & Control Refurbishment — Detailed Design
IcelandDesign Engineering - 2024
110/20 kV Switchgear Replacement — MicroSCADA Upgrade, RTU Engineering
Hum na Sutli, CroatiaDesign Engineering Commissioning - 2024
110/20/10 kV AIS Substation Refurbishment
Kozarska Dubica, Bosnia & HerzegovinaEngineering - 2024
35/10 kV Protection Setting Study
Dubrovnik, CroatiaEngineering - 2024
20/0.4 kV Substation RTU Integration
CroatiaEngineering Commissioning - 2023
110/35/10 kV Protection Setting Study (4 Substations)
CroatiaEngineering - 2023
35/10 kV Substation Reconstruction
CroatiaEngineering Commissioning - 2023
35/10 kV GIS Substation Refurbishment
CroatiaEngineering Commissioning - 2022
150 kV AIS Substation SST5 — 2×150 MVA Transformers
BelgiumCxA Commissioning - 2022
20 kV Data Center Substation Refurbishment
CroatiaDesign Engineering - 2022
110 kV AIS Substation Extension
CroatiaEngineering Commissioning - 2021
150 kV AIS Substation SST4 — 2×150 MVA Transformers
BelgiumCxA Commissioning - 2020
150 kV GIS Substation Extension
Mons, BelgiumCxA Commissioning - 2020
ABB RTU540 / IEC 61850 Engineering (8 RTUs)
CroatiaEngineering Commissioning
Get in touch
Let's talk
about your project.
Our team of experts is ready to help with your data center and substation commissioning needs.
- Phone
- +385 (1) 3815 145
- info@terrawatt.eu
- Office
- Radnička cesta 1A, Business park 1A, 10000 Zagreb, Croatia
