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Table 2 Selection of case studies from literature used for comparison

From: A simplified model for the estimation of life-cycle greenhouse gas emissions of enhanced geothermal systems

Code

Case study from literature

Depth (z) [m]

Number of wells (Nw)

Installed capacity (PORC) [kW]

Estimate of GHG performances [gCO2eq/kWh]

FA1

Frick et al. (2010) - SiteA1

3,800

2

1,240

54

FB1

Frick et al. (2010) - SiteB1

4,700

2

1,290

53

PtO

Platt et al. (2012) - `ORG' site

3,162

2

1,740a

23

PtS

Platt et al. (2012) - `SMB' site

4,307

2

2,870a

19

Ba

Bauer et al. (2008)

5,500

3

2,940a

27

Hu1

Huenges (2010) - case 1

4,000

2

1,440

58

Hu2

Huenges (2010) - case 2

4,000

2

1,440

55

LBa

Lacirignola and Blanc (2013) - base case

4,000

3

1,820

37

Su

Sullivan et al. (2013)

6,000

10

20,000

18.9

  1. aFor Bauer et al. (2008), the auxiliary power demand of the ORC equipment is assumed to be 2% of the generator's output, considering that the total auxiliary demand (including the pumps of the geothermal loop) amounts to 4%. For Platt et al. (2012), the auxiliary power demand of the ORC equipment is assumed to be 20% of the generator's output considering that the total auxiliary demand accounted in its study (including the pumps of the geothermal loop) amounts to 37%.