Biomass is living matter. In terms of domestic renewable energy it is recently living matter which we can easily burn such as wood or other plant material either in its raw state, after very little processing, (e.g. logs) or after more advanced processing (e.g. wood chips or pellets).
Biomass requires sunlight for energy in which to grow, and so can be thought of as another form of indirect solar renewable energy, which has the advantage of convenient storage.
Biomass should be considered as a ?nearly? carbon neutral energy resource. Burning biomass releases no more carbon dioxide than was removed from the atmosphere when it was growing, but there are some emissions from transporting and processing this resource, highlighting the necessity of sourcing biomass fuel from local and sustainable sources.
Typically wood is burnt to release heat for space heating and hot water purposes in the home. To ensure that biomass used in this way is done so sustainably, it is important not to waste energy in order to prevent biomass from being consumed more quickly than it is replenished.
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