economics of small scale biogas
DESCRIPTION
Presentation by Kealan Gell of the British Community Composting Network held at the biogas information seminar in Wageningen the Netherlands, 4 October 2009, organized by the Wageningen Environmental Platform & the Community Composting NetworkTRANSCRIPT
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Small Scale Anaerobic Digestion in the Industrialized World:An Introduction
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Economics of small scale biogas and the closed loop
Kealan Gell
October 4, 2009Droevendaal, Wageningen
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12 months ago…
Objectives
To review small scale AD projects in industrialized countriesTo investigate the potential of small scale AD for CCN membersTo gauge CCN member interest in AD
Outline
IntroductionWhat has been done?Economic assessment of small projectsPotential for the community sectorConclusionReferences
Community Biogas Report
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Case Studies
Common large projects in the industrialized worldOn-farm manure digestersCentralized MSW, etc digesters
Common small projects in the developing worldOn-site manure and household waste
Small projects in the industrialized worldIndustrial Effluent and Septic TanksDry DigestionFarm DigestersResidential and HouseholdSewageResearch and Pilot ProjectsPast Projects
Community Biogas Report
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Traditional Economics: Financial Cost-Benefit is the single largest barrier to small AD projects in the UK
Community Biogas Report
Annual Cost/ Benefit of one 4 m3 digester
United Kingdom India
Waste treatment
- all faeces and food from several houses of people and animals
No benefit directly to user
Cheap sewer and landfillConsistent feedstock not available
Significant benefit
Reduces health problems by 1/2Small herds of livestock for feedstock
Energy production
- 400 to 3200 Litres of biogas per day
Benefit
12kWh (£1.20 ) per day, £438 per yearNot as clean as natural gas, requirescompression, equipment, etc
Significant benefit
4 hours of cooking fuel per day £ 30.0/ year on wood + less
deforestation£ 18.0/ year on kerosene in rural India
Fertilizer production
- 40 to 160 Litres per day of NPK rich liquid
Small benefit
Nutrient rich effluent has low (negative) value
Farming is not done locally
Significant benefit
better than fresh manure for cropping£11.3 saved on fertilizer purchase
Environmental health
- avoidance of pollution and resource depletion
Not significant
Environmental health such as water andsoil quality are trivial to quality of life
Benefit
Crucial for those who depend directlyon their local environment for food,water, shelter and materials.
Maintenance and Operation
-starting, loading, and operating the digester
Significant cost
Training and time required for loading,monitoring process£6,000/ year for one part time person
Cost
Digester requires valuable buckets ofwater and human labour£41/ year poverty line in India (300m
pple)
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Non-Traditional Economics
Decentralized AD optimizes:
SustainabilityGreenhouse gas balanceResource depletionWater, soil and air pollution
Benefits to SocietyCosts of overall infrastructureEnergy and food self sufficiency
Community Biogas Report
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EF HDI GDP?
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EF HDI GDP?
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Resources Waste
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Business PlanMicro Blackwater
PlantsKealan Gell
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2008 2009 2010 2011 2012 2013
175k
450k
€
Profit
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Total Investment: 175k
R & D 50 000Capital 25 000Production 100 000
Total Profit after 3 Years: 450k + 30k/ year
Service Installation
Price 100 /month + 11 000
Cost 50/ month + 2000
Profit 50 /month + 9 000
Profit x 50 Units 30 000/ year + 450 000
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Our Team•K. GellManagement ExperienceDesign Experience
•CCN Steering GroupNetwork of Clients
•LeAFTechnical Experience
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Customer• CCN Members• Leading Edge Businesses• Small Communities
Advantage• Green Feeling and PR• Affordable • Biogas (€300 /year)• Local Energy and Food Security
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Product• Simple On-site Biogas System• Lease with Service Package
• struvite fertilizer collection• Proven and Demonstrated• Health and Safety Guarantee• Future potential
• fuel cells • integrated gardens
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Competitors2 years research by LeAF and CCN •Too big, complex and expensive No network and service package• Not H&S compliant
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LeAF Phase 1 Report: Review of Equipment
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The €200 System
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