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Table 1 Parameters characterization for the reference model (Equation 3 )
Symbol | Parameter | Value range | Unit | Probability distribution in the value range | Main references |
|---|---|---|---|---|---|
z | Borehole depth | 2,000 to 6,000 | m | Equiprobability | Current EGS projectsa, Genter et al. (2010), Frick et al. (2010), Bauer et al. (2008) |
f | Produced flow rate | 25 to 100 | kg/s | Equiprobability | Current EGS projectsa, Frick et al. (2010) |
Nw | Number of wells | 2 to 3 | Adimensional | Equiprobability | Current EGS projectsa, Huenges (2010), Bauer et al. (2008), Schmidt et al. (2010) |
d | Fuel for drilling | 3,000 to 7,000 | MJ/m | Equiprobability | Drilling reports from Soultz-sous-Forêtsb, Bauer et al. (2008), Frick et al. (2010) |
LF | Load factor | 0.85 to 0.95 | Adimensional | Equiprobability | |
LT | Lifetime | 20 to 40 | years | Normal distribution centered on LT = 30 years with σ = 3.25 | Frick et al. (2010), Platt et al.(2012), Bauer et al. (2008), Huenges (2010) |
SFe | Scaling factor enhancement | 0.5 to 10 | Adimensional | Lognormal distribution with σ = 1, μ = 0 and peak on SFe = 1 | Schindler et al. (2010), Hettkamp et al. (2004), Nami et al. (2008), Graff and Baujard (personal communication) |
P p | Specific power of pumps | 3.6 to 8.6 | kW/(kg/s) | Equiprobability | Frick et al. (2010), Lacirignola and Blanc (2013), Graff and Baujard (personal communication) |
P ORC | Installed capacity ORC | 1,250 to 3,500 | kW | Equiprobability | Current EGS projectsa, Huenges (2010), Bauer et al. (2008) |