Selected Eco Energy Biomass Cost Analysis
Status Quo Choose Current Fuel
 
Current Annual Spend on Heating £   Boiler Size
Fuel Cost per kWh pence kWh
A perfect System Would Produce Annually kWh Year's worth of Fuel
Current System Efficiency % Litres
Therefore Actual Buildings Heat Demand kWh Current System Efficiency
Spend Actually Heating Buildings £ % %
      New System Efficiency
      %
Biomass Boiler Data & Benefits Woodchip Cost/Tonne
      £ per/t
Fuel Type   Woodpellet Cost/Tonne
Recommended Boiler Size 1 kW £ per/t
New System Efficiency 2 % Oil Cost per Litre
Annual Heat Output of Biomass Boiler Needed 3 kWh pence
Annual Boiler Full Load Running Hours hrs LPG Cost per Litre
kWh/t pence
Annual Fuel Required Tonnes Gas Cost per kWh
Annual Fuel Cost £   pence
Annual Fuel Cost Saving by Switching   Annual Maintenance
      % of Total Cost
Tier 1 Rate p/kW RPI Assumed
Tier 2 Rate p/kW %
Tier Break kWh Project Cost
      £
First Year Total RHI Tier 1 income £   Current RHI Rates
First Year Total RHI Tier 2 income £   0 - 199kW
TOTAL YEAR 1 RHI INCOME £   Tier 1 pence Tier 2 pence
      4.40 1.17
    200 - 999kW
Annual CRC benefit £16.40 £   Tier 1 pence Tier 2 pence
      5.18 2.24
      >999kW
Capital Cost of Project £   Tier 1 pence Tier 2 pence
First Years RHI Income and Savings £   2.24 2.24
Payback Period Years Wood Chip 3200
Total Gain over 20 years £ Wood Pellet 4800

Notes - LPG 6.9 kWh/ltr - Oil 10 kWh/ltr - Gas 1:1

1 This is based on keeping the Full Load Running Hours as close to 2600 as possible
2 This includes any district heating pipework, heat exchangers etc
3 This is what is needed to put the same heat energy into the buildings as before
Fossil Fuel Price Increase Assumed at %
Pellet/Woodchip Price Increase Assumed at %

Fuel cost comparison, RHI Income and Maintenance
RHI Income Current Fuel Price Indexed at %  
Year RHI Revenue Stream Per Year Projected Maintenance costs PA Cumulative Maintenance Costs Difference
year 1 £ £ £ £ £ £
year 2 £ £ £ £ £ £
year 3 £ £ £ £ £ £
year 4 £ £ £ £ £ £
year 5 £ £ £ £ £ £
year 6 £ £ £ £ £ £
year 7 £ £ £ £ £ £
year 8 £ £ £ £ £ £
year 9 £ £ £ £ £ £
year 10 £ £ £ £ £ £
year 11 £ £ £ £ £ £
year 12 £ £ £ £ £ £
year 13 £ £ £ £ £ £
year 14 £ £ £ £ £ £
year 15 £ £ £ £ £ £
year 16 £ £ £ £ £ £
year 17 £ £ £ £ £ £
year 18 £ £ £ £ £ £
year 19 £ £ £ £ £ £
year 20 £ £ £ £ £ £
   
Total RHI revenue £ CRC Savings over 20 Years £ £ Total fuel differential cost £
   
Total Income & Savings £
Less Capital Cost £
Total Gain over 20 Years £