Table 10.10: Data sheet for economic analysis (Source OEKOTOP; Finck/Oelert, Table 1)
Project title:
Technical service life:
Item Period
Year
1.1 General inflation rate
1)
1.2 Market interest rate, p
1.3 Assumed interest rate,
i 2)
2. Investment costs, I 3)
3.1 Manpower costs 4)
3.2 Maintenance and
repair 5)
spare-parts requirement
4.1 Taxes and levies not
linked to profit
4.2 Other expenditures
5. Total operating costs,
6.1 Energy-related
revenues 6)
6.2 Revenues from
fertilizer 7)
6.3 Time saved 8)
6.4 Other income
6.5 Subsidies
7. Total income
8. Returns (item 7- item 5)
9. Depreciation 9)
10. Capital servicing costs
10)
11. Profit
Location: Owner:
Type of plant/digester volume:
years
0 1 2 3 4 5 6 7 8 9 10
19.. 19.. 19.. 19.. 19.. 19.. 19.. 19.. 19.. 19.. 19...
..........
% 34 34 34 34 34 34 34 34 34 34 34
% 48 48 48 48 48 48 48 48 48 48 48
% 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10.4
4444444444
CU 110
0
CU - - - - - - - - - -
CU - 30 30 30 30 30 30 30 30 30 30
CU - - - - - - - - - - -
CU -
Co
CU -
50 50 50 50 50 50 50 50 50 50
35 35 35 35 35 35 35 35 35 35
210 210 210 210 210 210 210 210 210 210
CU - 250 250 250 250 250 250 250 250 250 250
CU - - - - - - - - - - -
CU - - - - - - - - - - -
CU - - - - - - - - - - -
CU - 235 235 235 235 235 235 235 235 235 235
CU 200 200 200 200 200 200 200 200 200 200 200
CU 110 110 110 110 110 110 110 110 110 110 110
CU - - - - - - - - - - -
CU -
90 90 90 90 90 90 90 90 90 90
CU = currency unit; in local currency or DM/US $ (conversion to DM/US $ rarely advisable due to
fluctuating exchange rates)
Table 10.11: Discounting factors for interest rates of i = 1 -30% and periods of t = 1 - 30 years
t\i 1
1 .990
2 .980
3 .971
4 .961
5 .951
6 .942
7 .933
8 .923
9 .914
2 3 4 5 6 7 8 9 10 11 12 13 14 15
.980 .971 .962 .952 .943 .935 .926 .917 .909 .901 .893 .885 .877 .870
.961 .943 .925 .907 .890 .873 .857 .842 .826 .812 .797 .783 .769 .756
.942 .915 ,889 .864 .840 .816 .794 .772 .751 .731 .712 .693 .675 .658
.924 .888 .855 .823 .792 .763 .735 .708 .683 .659 .636 .613 .592 .572
.906 .863 .822 .784 .747 .713 .681 .650 .621 .593 .567 .543 .519 .497
.888 .837 .790 .746 .705 .666 .630 .596 .564 .535 .507 .480 .456 .432
.871 .813 .760 .711 .665 .623 .583 .547 .513 .482 .452 .425 .400 .376
.853 .789 .731 .677 .627 .582 .540 .502 .467 .434 .404 .376 .351 .327
.837 .766 .703 .645 .592 .544 .500 .460 .424 .391 .361 .333 .308 .284
124