The UK Anaerobic Digestion and Bioresources Association (ADBA) has said that the value of biogas in the UK’s decarbonisation efforts is ‘underestimated’ following the release of the UK Government’s Net Zero Strategy.

Although the report, entitled ‘Net Zero Strategy: Build Back Greener’, acknowledged that biogas, anaerobic digestion (AD), and biomethane can play a role in achieving the country’s net zero emission targets, the ADBA believes that the strategy ‘significantly underestimates’ the role that they can play.

With the Government stating that it aims to triple biomethane in the gas grid by 2030, ADBA’s modelling suggests that biomethane production could be increased ten-fold, enough to heat over 4.5m homes per year.

The biogas 'cycle'.

The biogas ‘cycle’.

Source: ADBA

Believing that the strategy is encouraging, Charlotte Morton, Chief Executive, ADBA, said, “However, the strategy falls far short of the ambition needed for realising that potential. Our research demonstrates that our industry can delivery significantly more, and – crucially – far more quickly than is predicted in the plan.”

As one of the first signatories of the EU-US-led Global Methane Pledge, the UK has attempted to take a leading role in the reduction of methane emissions by at least 30% against 2020 levels by 2030.

Morton believes that AD is one of readily available technologies capable of delivering these targets at a low cost.

“As we have said multiple times, there’s no ’Net Zero’ without biogas,” she concluded.

Anaerobic digestion, or AD, is defined as the natural breakdown of organic matter when deprived of oxygen in a container called a digester. The process produces biogas and a resudie called digestate, which can be used a biofertiliser.