Biogas 21 – Plaxton Bridge

Project Description

Plaxton Bridge, located near Hull (UK), is Solar 21’s first anaerobic digestion project. The plant will produce between 4 million and 5.4 million cubic metres of biomethane gas, enough for 3,700 homes.

How is Biogas Produced?

Anaerobic digestion is a process that produces biogas, a high-energy gas made up of mainly methane (CH4) and carbon dioxide (C02) from the breakdown of organic material in the absence of oxygen. To make it usable in the national gas pipeline, the biogas must undergo a purification process that removes other gases and impurities, turning it into what is called biomethane (a gas composed of 99% methane).

Government-backed Revenue

Plaxton Bridge will qualify for the non-domestic Renewable Heat Incentive (RHI), part of the UK government’s clean energy strategy to stimulate the growth of renewable energy technologies. Under the proposed scheme, the UK government will pay an incentive per cubic metre of biomethane and MWth (megawatt thermal) of heat produced. The incentive will be guaranteed for a period of 20 years.

Project Status

The latest project progress report is available here.

Project Videos

Latest News

Why the Irish renewable heat scheme will not encourage the growth of renewable energy in Ireland

Why the Irish renewable heat scheme will not encourage moving away from fossil fuels in Ireland

Here at Solar 21 we are often asked why we don’t invest in renewable energy projects in Ireland. The announcement last week of a renewable heat scheme by Minister for …read more

Clean Growth Strategy

UK government’s Clean Growth Strategy warmly received

This is the response from ADBA (the UK’s Anaerobic Digestion and Bioresources Association) to the UK government’s Clean Growth Strategy, announced on 12th October. It first appeared on www. …read more


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BARACK OBAMA, Address to Joint Session of Congress, Feb. 24, 2009

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