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124 Evaluation of Opportunities for Converting Indigenous UK Wastes to Wastes and Energy AEA/ED45551/Issue 1 Table 65 Overview of technology, scales of operation and fuel suitability Burner type Typical size MW fuel input Fuel quality Burner Technology grate (G) or Fluidised (F) Domestic 0.015 MW Logs and pellets G Commercial 0.2 MW Wood chip G upwards most qualities Small industrial 2 MW Most dry G upwards shredded materials Large industrial 20 MW Most dry G or F heat and CHP upwards shredded materials not necessarily dry MSW mass burn 20MW Minimally G incineration upwards sorted MSW Large cofiring 100 MW Most dry n/a upwards shredded materials. Preference for pellets SRF Waste Wood Clean Wood Domestic Pellet Industrial Pellet Unsorted Waste Wet Wastes Agricultural Residues T C Fuels
Evaluation of Opportunities for Converting Indigenous UK Wastes to Wastes and Energy AEA/ED45551/Issue 1 Table 66 Risks and barriers to combustion Level of Risk Comment Technical Low to Many commercial installations, however the materials handling medium aspects have proved troublesome in the UK and there is a lack of experience. Agricultural residues and poor quality wood fuels may give high ash contents that lead to problems with boiler fouling. Wastes regulated under WID will need extensive emissions monitoring equipment. Social & Planning High High where used to produce electricity on a regional basis as it will be perceived as an incinerator irrespective of its efficiency or recycling credentials. Financial Medium Track record of delays in planning for waste projects are a disincentive. Wood and agricultural residues are OK in normal circumstances but can be delays in urban areas Regulatory Medium Receives subsidy via the Renewables Obligation. Waste incineration directive compliance is usually necessary. Co-firing waste in a utility boiler is difficult as it would require the reclassification of the whole station as an incinerator Fly ash may contain dioxin and be classed as hazardous waste. 125
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South East 327 - - 55% of MSW by 20
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Appendix 3 MBT Methods Specific in
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Figure 27 Orchid Environmental proc
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