Caerphilly
Sinewave delivered a future‑ready EV charging hub that balances technical integration, public safety in a live car park, and biodiversity reinstatement.
Introduction
Sinewave acted as the Principal Contractor, delivering the entire project, start to finish, based on a design provided by Source.
Working to their preferred combined DNO/IDNO cabinet architecture with an integrated LV feeder, we delivered a neat footprint suited to a live retail setting and future-proofed the entire site for eventual upgrades.
Design & Coordination
Layout for combined DNO (National Grid) / IDNO (OPN) cabinets with LV feeder integrated.
Repositioned existing infrastructure, using drainage diversion to remove manholes from EV bays.
Implemented turning chambers to enable easy future replacements & upgrades
Safeguarding programme - heavy deliveries between 09:00–15:00; live interface managed with marshals and clear pedestrian routes.
Scope of works
Civils & Groundworks
Three‑section precast concrete plinth installed within a tight car park footprint.
Deep excavation (2.5m) with temporary works & shoring for drainage diversion.
Retaining wall works and sheet piling/ground shoring to protect the road/pavement.
Car park resurfacing - repeated backfill reworks due to wet deliveries and weather.
Installations
4× high‑power chargers (150–160 kW), 8 outputs; wider bays plus disabled bay.
Lighting pillar feeds from an integrated cabinet.
Monolith signage connected on site; CCTV infrastructure installed.
Completion
Site commissioning was conducted with consistent supervision to ensure a safe and smooth handover.
Final project delivered with zero incidents, emphasising Sinewave and Source’s joint commitment to safety.
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