Cable ducting in a compound at dusk at the Copwood VFB Energy Hub in East Sussex.
East Sussex Full civils package
Project · Solar & Battery Storage

Copwood VFB Energy Hub

The full civil engineering package for a pioneering renewable energy development — combining utility-scale solar with what will be Europe’s largest vanadium flow battery installation. Site establishment to reinstatement, self-delivered.

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20.7MWhVanadium flow battery storage
3.2kmDucting & pipework
181Chambers & manholes
118Supastack chambers
3,450t+Materials imported
Location
East Sussex
Scheme
Solar & 20.7MWh vanadium flow battery
Scope
Full civil engineering package
Delivery
Site establishment to reinstatement
The project

A flagship energy hub

The Copwood VFB Energy Hub is a pioneering renewable energy development in East Sussex, combining utility-scale solar generation with long-duration vanadium flow battery technology. Once operational, it will be one of the most significant energy-storage projects of its kind in the UK.

HWBC was appointed to deliver the full civil engineering package — from the first enabling works through to final reinstatement — with our own workforce, plant and machinery.

Scope of works

Everything from grass to grid-ready

A single, coordinated civils package across the whole development.

01

Site Establishment & Compound

Compound installation, vegetation clearance and grass cutting, and the enabling works that got the site running.

02

Access Roads & Trackways

Construction of the site access roads and trackways to carry construction traffic across the development.

03

Drainage & Two Balancing Ponds

A comprehensive site-wide drainage network and two balancing ponds, with controlled discharge into the local watercourse to the approved drainage strategy.

04

MPVS & Equipment Foundations

Reinforced concrete foundations for the MPVS units and associated equipment across the solar and battery facility.

05

Battery & Solar Ducting

The ducting networks serving the battery energy storage units and the solar farm — 3.2km of ducting and pipework in all.

06

Earthing Systems

Earthing and grounding systems installed across the development.

07

CCTV Infrastructure & Foundations

CCTV infrastructure and the reinforced foundations for the security columns around the site.

08

Site Reinstatement

Full reinstatement across the site on completion, restoring all areas to project requirements.

Drainage & balancing ponds

Two ponds and a site-wide network

HWBC constructed two balancing ponds and a comprehensive drainage network across the site, designed to provide controlled discharge into the local watercourse in line with the approved drainage strategy.

With 181 chambers and manholes and 118 Supastack chambers across 3.2km of ducting and pipework, it’s a substantial stormwater scheme in its own right.

An excavator shaping a balancing pond at the Copwood VFB Energy Hub in East Sussex. Balancing pond · East Sussex
On site

The work

Outcome

One integrated civils solution

From site establishment and enabling works through to drainage, balancing ponds, foundations, ducting and reinstatement, HWBC delivered a coordinated civil engineering solution that supported the successful construction of the Copwood VFB Energy Hub.

The project shows our capability to deliver complex renewable schemes — combining solar, battery storage and environmental engineering — within a single integrated package.

Related

The capabilities behind it

This project drew on the full breadth of our civil engineering — drainage, foundations, roads, cable and reinstatement.

Our civils

See more of the work we self-deliver for solar and battery storage sites across the UK.

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Planning a complex renewable scheme? Let’s talk.

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