IntroductionThe aim of this calculator is for Local Authorities to calculate the energy potential available to the LA and to assess the options in regards to the energy potential of the product.Phase 1: Assess the energy potential of the organic waste, by following the flow chartWork Sheet 1 Calculates the energy potential from Hose Hold WasteWork Sheet 2 Calculates the energy potential from Agricultural Industry WasteWork Sheet 3 Calculates the energy potential from SludgesWork Sheet 4 Calculates the Energy potential from Energy CropsWork Sheet 5 Calculates the energy potential from Catering WasteWork Sheet 6 Calculates the Waste Generated from IndustryWork Sheet 7 Calculates the energy potential from Harvested BiomassEBIMUN: Evaluation of biomass resources for municipalities(BIO-EN-AREA miniprogramme )Author: Waterford County Council

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Flow ChartFlowchart for Local Authorities Assessing the Energy Potential of WasteDoes the Local Authority have access to a constant waste streamWhat Processes for energy production could the waste be used forNoWet ProcessDry ProcessWhat Type of Process is best suited and is this process viableWhat form of dry processes can the waste be used for, is there sufficient volumes of product for an energy projectIs there a suitable location to locate such an installationCan a building be located to install technologies that can be utalised the waste product for energy purposesCan the waste product be used with other products from Agriculture / industryYesCan a project progress with raw product from private industryCan funding be sourced to funding the installation and is it economically justifableCan funding be sourced to funding the installation and is it economically justifableProceed with installation

lfleming:lfleming:Work sheet 7

WS 1Energy Potential of Organic Waste Generated by HouseholdsRegionPopulationOrganic Waste/person/year (kg)Avg. Biogas per ton of treated waste (m3)Potential biogas production m315000Typical range for organic waste to be generated by an persons ranges from 30 KG 100 KG, household organic waste generated per yearRange for biogas production per tonne of organic waste ranges from

WS 2Energy Potential of Organic waste from Agricultural IndustryAnimalNumberWaste/animal (Nm3/year)Total slurry production (m3/year)Tonnes dry solids (tds/year)Avg. Biogas/tonne m3Potential Biogas production m3Meat Processing WasteTonnage Produced Each YearAvg. Biogas/tonne M3Annual Energy Potential of BiogasAbattoir Gastro-Intestinal Waste56502,800Abbatoir Fatty Waste2110220Animal By-Products (Pasteurised)451004,500Slaughter House Waste Mixture6140840Animal Slaughtering700Tanneries700TOTAL8,360Useable waste from Cappoquin Chickens LtdTypeTonnes Dry solids/yr (tds)Offal, Blood, Feathers721Effluent Plant Sludge27Cardboard45Chicken Litter12,500Total13,293cappoquin chickens ltdNumberWaste/1000 birds mtonnes dry solid/1000Tonnes dry solidsAvg. Biogas/tonnePotential Biogasbroiler chickenstonne per annumbirds(tds/a)NmProduction m9,620,0003.251.312,5061001250600

per 1000 headsdivided by 100053 kg cattle 140 days

WS 3Biogas Potential from SludgesSludges typeVolume m3 / yearTonnes dry solids tdsAvg. Biogas/tonne m3Potential Biogas production m3Note 1: Typical Sludges from treatment of Sewerage have a typical output of . Per tonne dry solidsNote 2: Typical output from sludges from municipal water treatment have an output of . Per tonne dry solids

WS 4Biogas Potential from Energy CropsEnergy CropsTonPotential biogas prod m3 / tonTotal potential biogas prod m3* Biogas produced from AD is assumed to have 60% Methane (CH4) content, with a calorific value of 6kWh/m Output of the typical Biogas CHP plant is assumed to have a heat to electricity ratio of 2:1

WS 5Organic Waste Generated by Commerical IndustryRegionWaste typeAnnual Tonnage of waste GeneratedAvg. energy potential MJ/tonnePotential energy production MJType of wasteEnergy potential MJ/tonnePaper13,500Wood residues20,000Medical waste21,000

WS 6Organic Waste Generated by Industrial ProcessesRegionWaste typeTotal amount (ton)Avg. BiogasPotentialBiogas Production m3Waste type typeBiogas per ton (m3)Fat950Bakery500Corn190Grass175

WS 7Energy Potential from harvested biomass by Local AuthoritiesRegionBiomass TypeProcess Under TakenTonnage harvested / collected dryEnergy Content / ton (MJ)Overall Energy Potential (MJ)Total0http://www.biomassenergycentre.org.uk/portal/page?_pageid=75,163182&_dad=portal&_schema=PORTALFuelNet Calorific Value (CV) by massNet Calorific Value (CV) by massBulk densityEnergy density by volumeEnergy density by volumeGJ/tonnekWh/kgkg/m3MJ/m3kWh/m3Wood chips (30% MC)12.53.52503.1870Log wood (stacked - air dry: 20% MC)14.74.1350-5005,200-7,4001,400-2,000Wood (solid - oven dry)195.3400-6007,600-11,4002,100-3,200Wood pellets174.8650113.1Miscanthus (bale - 25% MC)133.6140-1801,800-2,300500-650House coal27-317.5-8.685023,000-26,0006,400-7,300Anthracite339.21.136.310.1Heating oil42.511.88453610Natural gas (NTP)38.110.60.935.29.8LPG46.312.951023.66.6These represent figures for the carbon or carbon dioxide emitted by full combustion of each fuel, per unit of energy. Note that life cycle CO2 emissions depend strongly upon details of supply chains, production techniques, forestry or agricultural practice, transport distances, etc.FuelNet calorific value (MJ/kg)Carbon content (%)Approx. life cycle CO2 emissions (including production)Annual total CO2 emissions to heat a typical houseSee note 1(20,000 kWh/yr)kg/GJkg/MWhkgkg saved compared with oilkg saved compared with gasHard coal29751344849680-2680-4280Oil42859735070000-1600Natural gas387575270540016000LPG4682903236460540-1060Wood chips1437.52714068605260(25% MC) Fuel onlyWood chips1437.572550065004900(25% MC) Including boilerWood pellets174541530067005100(10% MC starting from dry wood waste)See note 3Wood pellets174593366063404740(10% MC) Including boilerSee note 3Grasses/straw14.5381.5 to 45.4 to 15108 to 3006892 to 67005292 to 5100(15% MC)Notes:1. Life cycle analysis data from: Carbon and energy balances for a range of biofuels options Elsayed, MA, Matthews, R, Mortimer, ND. Study for DTI URN 03/836 and: Comparison of energy systems using life cycle assessment A special report for the World Energy Council July 20042. www.electricity-guide.org.uk/fuel-mix.html3. These figures for wood pellets include the hammer mill and pelleting process, however do not include sourcing the feedstock and any pre-processing such as drying. If starting from green wood then drying could be a very major component, however pellets are often made from dry waste wood that has been dried for another purpose, such as joinery. These figures also do not include transport (which is included in the figures for wod chips).

2. www.electricity-guide.org.uk/fuel-mix.htmlhttp://www.biomassenergycentre.org.uk/portal/page?_pageid=75,163182&_dad=portal&_schema=PORTAL

TotalEnergy Potential from Local Authority WasteBiogas volume year Nm3Methane mass year tonnesEnergy production / year(MJ)Energy production / year (MWh)% of totalWS1Work Sheet 1 Calculates the energy potential from House Hold Waste000000WS2Work Sheet 2 Calculates the energy potential from Agricultural Industry Waste8360315000041.6666666667100WS3Work Sheet 3 Calculates the energy potential from Sludges00000WS4Work Sheet 4 Calculates the Energy potential from Energy Crops00000WS5Work Sheet 5 Calculates the energy potential from commercial industry000WS6Work Sheet 6 Calculates the Waste Generated from Industrial processes00000WS7Work Sheet 7 Calculates the energy potential from Harvested Biomass000Overall Biogas Potential15000041.6666666667Overall Bioenergy Potential15000041.6666666667

Total010000000

Total bioenergy distribution