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Table 5 Comparison of the results for minimum and maximum substrate costs for scenario 1

From: Ecological and economic evaluation of biogas from intercrops

Depreciation period: 15 years

Minimum

Maximum

Capacity (%)

Total investment costs (1,000 €)

Digester f7 80 kWel

474.7

474.7

100

Digester f7 250 kWel

1,075.6

1075.6

100

CHP 80 kWel location 1

110

110

100

CHP 250 kWel central

250

250

100

Transformer

35

35

-

Silo management

150

150

-

Biogas pipelines

44.3

44.3

-

Total investment costs

2,139.6

2139.6

-

Yearly depreciation (1,000 €/year)

142.6

142.6

-

Yearly operating costs (1,000 €/year)

Material costs

73.0

119.6

-

Transport costs

56.6

56.6

-

Digester f7 80 kWel

27.1

27.1

100

Digester f7 250 kWel

37.8

37.8

100

CHP 80 kWel location 1

18.9

18.9

100

CHP 250 kWel central

29.2

29.2

100

Silo management

5.9

5.9

-

Electricity from national grid

23.2

23.2

-

Total operating costs (1,000 €/year)

271.7

318.3

-

Yearly profit (1,000 €/year)

District heat 22.5 € × 2,340 MWh

52.6

52.6

-

Electricity feed in 205 € × 2,574 MWh

527.7

527.7

-

Total profit (1,000 €/year)a without depreciation and operating costs

580.3

580.3

-

Total profit (1,000 €/year)a

166.0

119.5

 
  1. aWithout interest rates.