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Case Study
Northern Vermont Composting
Partnership (NVCP)
Hardwick area businesses and schools Diversion of food
scraps
Study tracks activities and applies
emissions factors Goal: calculator and net emissions from
base case
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Comparison - OverallCOMPOST SCENARIO WASTE SCENARIO
Setup
Facilities
Hauling
Processing
Application/Sequestration
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Comparison
SETUP
[Planning] [Planning]
[Outreach] [Outreach]
Tote manufacturing [Dumpster manufacturing]
[Tote delivery] [Dumpster delivery]
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Comparison
FACILITIES
[Buckets] [Buckets]
[Hot water to wash out buckets] [Hot water to rinse food]
Plastic liners
In-sink garbage disposal
[Wastewater management]
[Packer trucks rinsed]
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Comparison
HAULING
To Highfields [To Coventry ]
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PROCESSING
Hot water to wash out totes
Pile turning, machinery [Machinery emissions]CH4 and
N2Oemissions from pile Landfill emissions, pre-cap
[CO2 emissions from pile]Importing carbon
Comparison
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Comparison
APPLICATION
[CO2 emissions from burnt LFG]
CH4 emissions from leakageDisplaced emissions from NEPool[Other
environmental impacts from
grid generation, transmission]Averting nitrogen fertilizer
production[Avoided NO2 losses fromfertilizer application]
[Other environmental impactsfrom fertilizer and fungicide
use]
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Comparison
SEQUESTRATION
Soil Landfill
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Emissions Factors
Compost Scenario
tote material, 7.5% recycled 0.02351 MTCO2e/tote
hauling to THI 0.00082 MTCO2e/mile diesel dump truchot water to
wash out totes 0.00031 MTCO2e/tote
importing carbon 0.00079 MTCO2e/mile gas light truck
importing carbon 0.00070 MTCO2e/mile diesel light truck
pile turning 0.01134 MTCO2e/gallon diesel fuelsoil sequestration
-0.01008 MTCO2e/half tote of food waste
fertilizer production offset -0.00993 MT 2e half tote of food
waste
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Emissions Factors
Coventry Scenario
plastic liners 0.000094 MTCO2e/one bag
garbage disposal negligible
landfill sequestration -0.0040 MTCO2e/half tote
emissions from landfill pre-cap 0.03234 MTCO2e/half tote
displaced emissions from grid -0.000000131 MTCO2e/half tote
fugitive emissions post cap 0.00055 MTCO2e/half tote
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Sample Results1#
APR 07-APR08 MTCO2e
Coventry scenario 48.2
Highfields compost scenario -32.3Net emissions from project,
first year -80.6
Emissions avoided per 48 gallon tote -0.096
This project offset the equivalent* of burning
over 9000 gallons of gasoline in this period at over 11 gallons
of gasoline per tote
2CO2emission from a gallon of gasoline = 19.4
pounds/gallon1Preliminary
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Benefits
Reductions in greenhouse gas
emissions
from carbon sequestration in soil
from avoided fertilizer production
from avoided plastic liner production
from reduced landfill operations
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Benefits (contd)
Turns nutrients back into soil
Has saved money for participating
businesses
Raises awareness of food waste
generators re: composting
Benefits from compost
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Costs
Energy is not produced
Participants may need to be financially
subsidized
x
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For more information:
[email protected]
[email protected]
