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Stochastic (Combined Heat and Power) Anaerobic Digestion Economic Assessment Tool

(SADEAT)


Project lifetime (years)
Number of cases to simulate
Seed (for reproducibility of results)
Building and infrastructure capital costs, £
AD Digester
Separator
Feedstock and other storage
Digestate storage
Grid connection
Start/Backup boiler
Water connection
Groundworks
Silage clamp
Weighbridge
Roadways
District heating system
Mixing pit
Project development
Other

Grant assistance
Total building cost
Machinery capital costs, £
CHP generator
Cables and pipes
Heat exchanger
Biogas scrubber
Fencing
Depackaging
Cleaning technology
Degritter
Front end loader
Pumps
Shredder
Pasteuriser
Other

Grant assistance
Total machinery cost
Initial year overhead costs, £

Labour
Labour
Regular and casual
Management

General
General insurance
Transport
Water
Assurances
Professional fees
Testing fees
Office and telephone
Other

Land and building
Rent

Total initial year overhead cost
Additional cost information
Building depreciation duration (years)
Machinery depreciation duration (years)
% Debt (0 - 100%)
Debt repayment term (years)
Prices
p/kWh
Electricity: Feed-in-tariff (FIT)
Electricity: Export tariff
Heat: Renewable heat incentive (RHI)
Heat: Export tariff

Money rates
Debt interest rate (0.01 - 100%)
Inflation rate (0 - 100%)
Cashflow discount rate (0 - 100%)
Tax rate (0 - 100%)
MIRR finance rate (0 - 100%)
MIRR reinvestment rate (0 - 100%)
Select feedstock
Minimum feed (tonnes)
Modal feed (tonnes)
Maximum feed (tonnes)
Minimum yield (m3/tonne)
Modal yield (m3/tonne)
Maximum yield (m3/tonne)
Select quantity distribution type
Select yield distribution type

Animal feedstock
Triangular
Triangular
Uniform
Uniform

Energy crop feedstock

Other feedstock
Minimum
Modal
Maximum
Select distribution
Energy in methane (kWh/m3)
Triangular
Amount of methane in biogas (0 - 100%)
Uniform
CHP plant electricity efficiency (0 - 100%)
CHP plant heat efficiency (0 - 100%)
Overall plant inefficiency (0 - 100%)
Parasitic load electricity (0 - 100%)
Parasitic load heat (0 - 100%)
Downtime (0 - 100%)
Select indicator

Note: Modified internal rate of return is currently deprecated. Further development of SADEAT is currently being undertaken for faster execution of this indicator.


A textual summary of the sorted distribution of NPVs above will be displayed here.