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Civils · Anaerobic Digestion · Renewable Infrastructure

Precast for the UK's 720 anaerobic digestion plants.

Precast concrete components for anaerobic-digestion (AD) plants — tank panels, slurry channels, retaining walls and hardstanding. Cast to BS EN 14992 and BS EN 1992-3 in sulphate-resisting C40/50 concrete with a 20-year minimum design life. Specced for the 720+ UK on-farm AD plants. Lead time 4–8 weeks.

Cast next door to the UK's first food-waste biogas plant — Severn Trent's Holsworthy site.

Tank panels, slurry channels, retaining walls and hardstanding bases — supplied to AD operators, EPC contractors and farm-scale builders nationwide. We know the kit because we sit beside one of the biggest AD plants in the country.

Configure a quote Call 01409 281437
WCCP precast prestressed concrete tank panels for anaerobic digestion plants, cast in Devon

38 new on-farm AD builds went live across the UK in 2025 alone. The next decade of renewable-gas infrastructure is being cast right now — concrete is on the critical path.

What we supply

The four families AD operators ask for.

Tank panels

Prestressed precast wall panels for digester tanks and digestate stores. Cast in C40/50 sulphate-resisting (CEM III/A available). Up to 10 m (32ft 10in) unsupported span; manufactured to BS EN 14992.

Slurry & digestate channels

Precast channel sections, slats and covers for digestate handling. Sized to BS EN 12737 with cover loadings to suit yard traffic.

Retaining walls

L-blocks, T-blocks and cantilever retaining walls for feedstock bays, push walls and clamp areas. Surcharge-rated to your engineer's schedule.

Hardstanding bases

Heavy-duty precast hardstanding for separator units, pump skids and CHP enclosures. Levelled to manufacturer template.

From the casting bed, into the digester yard

The kit, in the metal.

Tank panels, channels and retaining units leaving the Chilsworthy yard for AD operators around the country.

WCCP prestressed precast concrete panels for AD plant tank walls and digestate stores, Devon
Prestressed tank panels in the casting yard. Up to 10m (32ft 10in) unsupported span on the digester walls.
WCCP precast panel lifting clutch detail for safe AD plant install, sulphate-resisting concrete
Cast-in lifting clutch detail. Safe-to-rig out of the lorry, no slings round the panel.
WCCP precast digestate channel for anaerobic digester feedstock handling, Devon
Digestate channel section. Same C40/50 sulphate-resisting mix as the slurry kit.
WCCP precast L and T-block retaining walls for AD plant feedstock bays and push walls
L and T-block retaining walls. Drop straight into a feedstock bay or push-wall layout.
WCCP free-standing precast retaining wall for AD clamp and CHP enclosure surrounds
Free-standing retaining wall. Surcharge-rated to your engineer's schedule.
WCCP free-standing precast wall section in the Holsworthy yard, near Severn Trent biogas plant
Yard view next door to the Severn Trent biogas site. Same fence line, same lorry route.

The neighbour story

A circular-economy site, by design.

The Chilsworthy yard sits adjacent to the Holsworthy Biogas Plant, owned by Severn Trent Green Power — the FTSE-100 utility's renewable arm. Food-waste digestate one side of the fence, precast concrete the other.

We don't just supply the AD industry. We live next to it. That informs every spec we quote — corrosion exposure, traffic loadings, hatch detailing, deck tolerances.

Standards

  • BS EN 14992 — precast concrete wall elements (manufactured to harmonised standard)
  • BS 8500-1:2023 — concrete specification, including XA exposure classes
  • BS EN 1992-3 — design of liquid-retaining structures
  • SSAFO 2018 — silage, slurry and agricultural fuel oil regulations (England)

Talk to the yard

One supplier. Tank panels, channels, walls, bases.

Quoted off your engineer's schedule. Delivered on our own HIAB fleet. Cast in Devon, beside the biogas plant.

Configure a quote Call 01409 281437
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