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Bioenergy Implementation Plan - South-East Regional Authority

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Sugar Beet and Cereals<br />

Sugar beet and cereals are the main raw material used for bioethanol production, but other sugary and starchy materials<br />

can also be used. Bioethanol can be used as a blend with conventional petrol and it can also be used in Flexible Fuel<br />

Vehicles (FFV) at an 85% blend, as discussed in Chapter 8.<br />

Grass<br />

Grass has the potential to be used as a feedstock in an AD plant to produce biogas. One advantage of grass as an<br />

energy crop is that there is a large amount of knowledge and experience in relation to grass production within the<br />

agricultural community. Furthermore, there are none of the high start-up costs that are associated with the growing of<br />

oilseed rape, miscanthus or short rotation coppice. The anaerobic digestion of grass would also require other feedstocks,<br />

of which there is a large supply (e.g. food processing and slaughter house wastes), so there is an added advantage from<br />

a waste management point of view.<br />

Miscanthus<br />

Miscanthus is a perennial, rhizomatous grass which typically requires 3 years to establish. The crop is planted in the<br />

Spring and once established can remain for at least 15 years. Bamboo-like canes are produced during late Spring and<br />

Summer and these are harvested in late Winter. The establishment and harvesting of miscanthus can be done with<br />

conventional farm machinery<br />

Miscanthus can be combusted to produce heat and/or electricity on a range of scales from large power stations<br />

requiring hundreds of thousands of tonnes of biomass annually to small-scale systems requiring just a few dozen<br />

tonnes during Winter months.<br />

Municipal Solid Waste<br />

Municipal solid waste (MSW) can be a source of bioenergy either by combusting it in a thermal treatment<br />

facility with energy recovery or by using anaerobic digestion technology to produce biogas which is used for<br />

energy generation.<br />

Landfill Gas<br />

Landfill gas, which is produced by the natural degradation of waste, can be used for energy generation if produced<br />

in sufficient quantities and with sufficient levels of methane.<br />

6.2. Summary of <strong>Regional</strong> <strong>Bioenergy</strong> Resources<br />

Table 6.1 outlines a summary of the potential bioenergy resources in the <strong>South</strong>-<strong>East</strong> Region. These resources are<br />

discussed individually in the following sections. It should be noted that for each of the resources discussed, there are<br />

alternative end uses. For the purpose of this Resource Assessment, an estimation of the availability of each resource for<br />

energy has been made. This is by no means conclusive and the availability of any given resource is subject to change.<br />

The availability of each resource for bioenergy purposes will ultimately be determined by market forces.<br />

34<br />

south-east regional authority<br />

údarás réigiúnach an Oir-DheisCIrt

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