Parley

Anaerobic Digestion Facility​

Parley Anaerobic Digestion Facility

Converting the region’s food waste into renewable biomethane and nutrient-rich biofertiliser.

Commissioned in March 2026, our Anaerobic Digestion facility at the Eco Park, Parley, processes food waste from household and commercial sources, to produce renewable gas for the national grid.

Having received planning permission and an environmental permit in 2015, construction of the Anaerobic Digestion facility at our headquarters near Bournemouth began in early 2025, with the plant commissioned in March 2026.

The facility comprises two large digesters, continuously fed with fresh food waste collected from households and businesses across the South. As the material breaks down, it releases biogas, which is captured and upgraded on-site to produce pipeline-quality biomethane — a direct, renewable replacement for natural gas.

In contrast to our Piddlehinton facility, which uses biogas to fuel Combined Heat & Power engines, the biomethane produced at Parley is supplied through two routes: injection directly into the national gas network, and a soon to be constructed, dedicated on-site refuelling station serving our fleet of HGVs.

After residency time of 42 days, the spent food soup (digestate) is pasteurised at 70°C for one hour, before being supplied to a network of local farmers as a nutrient-rich biofertiliser — reducing reliance on fossil-derived fertilisers and returning nutrients to the land.

34 GWh

of annual energy output (enough to heat over 6,000 homes)

62,000 tonnes

of bio-fertiliser 

~14,000 tonnes

of CO2 savings per year

Key Facts

Waste Input: Food waste, liquid waste, residues 

Output: 800m3/hr Biomethane 62,000 tonnes of Bio-fertiliser

Digestors: 2 x 5,000m3 tanks

Commissioned: 2026