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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 in sulphate-resisting C40/50 concrete, manufactured in compliance with applicable British Standards. Specified for the 720+ UK on-farm AD plants. Please call to check current yard stock or current lead times.

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.

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. Up to 6.096 m (20ft) standard panel length, manufactured in compliance with applicable British Standards. Tell us the exposure your engineer has specified and we will confirm the mix when we quote.

Slurry & digestate channels

Precast channel sections, slats and covers for digestate handling. Cover loadings sized 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 in the casting yard
Prestressed panels in the casting yard. Up to 6.096m (20ft) standard panel length.
WCCP precast panel lifting clutch detail for safe AD plant install, sulphate-resisting concrete
Cast-in lifting clutch detail. Unloading is arranged by the customer.
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, cast to your engineer's specification.
WCCP free-standing precast wall section in the yard
Free-standing wall section. The yard sits alongside a biogas plant, so AD work is on our doorstep.

The neighbour story

A circular-economy site, by design.

The Chilsworthy yard sits alongside the Holsworthy Biogas Plant. Digestate one side of the fence, precast concrete the other — so AD sites are familiar ground for us.

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

Standards

  • British Standards — our products are manufactured in compliance with applicable British Standards. For information regarding the specific standards applicable to a particular product, please contact us.
  • 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 specification. Delivered by artic or rigid lorry — you arrange unloading. Cast in Devon, beside the biogas plant.

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