Project overview
At the Iron Acton 120 Megawatt BESS site, Heighway delivered LV installation works across the 132 compound control room and HV room, alongside high-capacity DC and AC cabling installation to battery assets and skids. The scope included containment, distribution, changeover arrangements, multi-core control wiring including SCADA works, and earthing throughout the system.
What we delivered
LV containment and distribution
We installed LV containment and completed distribution wiring to support site power and operational systems, including supply routes from auxiliary transformers to distribution boards.
This included:
- All containment within the 132 compound control room and HV room
- Distribution wiring from auxiliary transformers to distribution boards via auto and manual changeover switches
Control room wiring and SCADA works
Within the customer control room and the 132 compound, we installed and terminated multi-core cabling to support control and monitoring functions, including SCADA-related works.
This included:
- Wired, glanded and terminated all multi-core wiring within the customer control room and 132 compound, including SCADA works
- Wired, glanded and terminated all multi-core wiring within the customer DNO control room and 132 compound, including SCADA work
Earthing and bonding
Earthing and bonding formed a key part of the installation scope to support safe operation and compliance across exposed conductive parts and site systems.
This included:
- Earthing of all panels and exposed conductive parts
- Above-ground earthing on the BESS
DC and AC cabling to battery systems and skids
Earthing and bonding formed a key part of the installation scope to support safe operation and compliance across exposed conductive parts and site systems.
This included:
- Earthing of all panels and exposed conductive parts
- Above-ground earthing on the BESS
Delivery approach
This BESS scope required consistent workmanship across containment, distribution, control wiring, heavy cable installation, and earthing, with careful attention to termination quality and system organisation.
By managing these workstreams as one coordinated LV and cabling package, we supported a clean, structured installation across control room environments and the wider BESS infrastructure.
Posted on January 13th 2026
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