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Biogas
Biogas is a gaseous renewable energy source[1] produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste, wastewater, and food waste. Biogas is produced by anaerobic digestion with anaerobic organisms or methanogens inside an anaerobic digester, biodigester or a bioreactor.[2] The gas composition is primarily methane (CH
4) and carbon dioxide (CO
2) and may have small amounts of hydrogen sulfide (H
2S), moisture and siloxanes. The methane can be combusted or oxidized with oxygen. This energy release allows biogas to be used as a fuel; it can be used in fuel cells and for heating purpose, such as in cooking. It can also be used in a gas engine to convert the energy in the gas into electricity and heat.[3]
After removal of carbon dioxide and hydrogen sulfide it can be compressed in the same way as natural gas and used to power motor vehicles. In the United Kingdom, for example, biogas is estimated to have the potential to replace around 17% of vehicle fuel.[4] It qualifies for renewable energy subsidies in some parts of the world. Biogas can be cleaned and upgraded to natural gas standards, when it becomes bio-methane. Biogas is considered to be a renewable resource because its production-and-use cycle is continuous, and it generates no net carbon dioxide. From a carbon perspective, as much carbon dioxide is absorbed from the atmosphere in the growth of the primary bio-resource as is released, when the material is ultimately converted to energy.
The Metropolitan Borough of Solihull is a metropolitan borough of the West Midlands, in west-central England. It is named after its largest town, Solihull, from which Solihull Metropolitan Borough Council is based. For Eurostat purposes it is a NUTS 3 region (code UKG32) and is one of seven boroughs or unitary districts that comprise the "West Midlands" NUTS 2 region. Much of the large residential population in the north of the borough centres on the communities of Castle Bromwich, Chelmsley Wood, Fordbridge, Kingshurst, Marston Green and Smith's Wood. In the south are the town of Solihull, its sub-town of Shirley and the large villages of Knowle, Dorridge, Meriden and Balsall Common.
Since 2011, Solihull has formed part of the Greater Birmingham & Solihull Local Enterprise Partnership along with neighbouring authorities Birmingham, Bromsgrove, Cannock Chase, East Staffordshire, Lichfield, Redditch, Tamworth and Wyre Forest.
