- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 26 Nov 2020
Biogas is mainly composed of methane and carbon dioxide, but may also contain small amounts of nitrogen, hydrogen and carbon monoxide, as well water vapour and contaminants such as hydrogen sulphide and siloxanes.
After a relatively striaght-forward clean-up process, biogas (sometimes called biomethane or renewable natural gas (RNG)) can be used as a fuel. Biogas has been used as a fuel for many centuries, and in the UK, the city of Exeter used biogas for street lighting as early as 1895.
Typically, anaerobic digestion requires a heat source, and so biogas is often used to fuel combined heat and power (CHP) plant that produces both electricity and heat. The heat can be used for the anaerobic digestion process and can also be used to pasteurise animal-derived waste so that it can be used as fertilisers.
Combined heat and power plant can feed electricity into the national grid, and so biogas installations may qualify for payments under the renewable heat incentive (RHI) scheme (other than biogas from landfill).
 Find out more
 Related articles on Designing Buildings Wiki
- Anaerobic digestion (repeats some of the text in this article).
- Combined heat and power.
- Environmental impact of biomaterials and biomass (FB 67).
- Feed in tariff.
- Gas Goes Green.
- Liquefied petroleum gas (LPG).
- Mains gas.
- Natural gas.
- Oil - a global perspective.
- Peak oil.
- Renewable energy.
- Renewable heat incentive.
- Shale gas.
- Types of fuel.
- Water vapour.
- Zero carbon homes.
- Zero carbon non-domestic buildings.
Featured articles and news
What's the verdict from the court of public opinion?
Shift to home-based work influences closed plan preferences.
An overview of the current state of the market.
Organisation offers best practices for construction and modification.
Heritage on the edge?
Prioritising tax considerations.
The four D creative process: discover, define, develop and deliver.
National Cyber Security Centre initiative is announced.
Reviewing trends and projections.
Legislation will establish initiatives to move towards net zero.
How to document contractor employment status.
Tech tools to help manage people and space post-pandemic.
A style that ranges from mock Tudor to arts and crafts to the 'Wrenaissance'.
Free guide from Secured by Design.