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Initial Fervo Project Cape example from workshop NREL#288
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tests/examples/Fervo_Project_Cape.out

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*****************
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***CASE REPORT***
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*****************
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Simulation Metadata
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----------------------
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GEOPHIRES Version: 3.5.3
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Simulation Date: 2024-09-18
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Simulation Time: 09:42
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Calculation Time: 0.673 sec
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***SUMMARY OF RESULTS***
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End-Use Option: Electricity
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Average Net Electricity Production: 88.50 MW
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Electricity breakeven price: 8.75 cents/kWh
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Number of production wells: 12
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Number of injection wells: 12
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Flowrate per production well: 98.0 kg/sec
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Well depth (or total length, if not vertical): 2.6 kilometer
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Geothermal gradient: 73 degC/km
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***ECONOMIC PARAMETERS***
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Economic Model = BICYCLE
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Accrued financing during construction: 5.00
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Project lifetime: 15 yr
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Capacity factor: 90.0 %
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Project NPV: 566.32 MUSD
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Project IRR: 20.97 %
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Project VIR=PI=PIR: 2.17
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Project MOIC: 1.87
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Project Payback Period: 5.67 yr
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Estimated Jobs Created: 226
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***ENGINEERING PARAMETERS***
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Number of Production Wells: 12
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Number of Injection Wells: 12
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Well depth (or total length, if not vertical): 2.6 kilometer
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Water loss rate: 2.0
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Pump efficiency: 80.0
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Injection temperature: 56.2 degC
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Production Wellbore heat transmission calculated with Ramey's model
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Average production well temperature drop: 1.9 degC
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Flowrate per production well: 98.0 kg/sec
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Injection well casing ID: 8.000 in
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Production well casing ID: 8.000 in
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Number of times redrilling: 0
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Power plant type: Supercritical ORC
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***RESOURCE CHARACTERISTICS***
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Maximum reservoir temperature: 400.0 degC
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Number of segments: 1
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Geothermal gradient: 73 degC/km
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***RESERVOIR PARAMETERS***
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Reservoir Model = Multiple Parallel Fractures Model
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Bottom-hole temperature: 199.13 degC
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Fracture model = Rectangular
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Well separation: fracture height: 300.00 meter
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Fracture width: 2400.00 meter
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Fracture area: 720000.00 m**2
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Reservoir volume calculated with fracture separation and number of fractures as input
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Number of fractures: 100.00
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Fracture separation: 15.00 meter
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Reservoir volume: 1069200000 m**3
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Reservoir impedance: 0.01 GPa.s/m**3
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Reservoir density: 2800.00 kg/m**3
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Reservoir thermal conductivity: 2.70 W/m/K
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Reservoir heat capacity: 1000.00 J/kg/K
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***RESERVOIR SIMULATION RESULTS***
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Maximum Production Temperature: 197.2 degC
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Average Production Temperature: 193.7 degC
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Minimum Production Temperature: 172.9 degC
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Initial Production Temperature: 195.9 degC
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Average Reservoir Heat Extraction: 676.81 MW
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Production Wellbore Heat Transmission Model = Ramey Model
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Average Production Well Temperature Drop: 1.9 degC
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Total Average Pressure Drop: 11791.7 kPa
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Average Injection Well Pressure Drop: 1038.6 kPa
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Average Reservoir Pressure Drop: 12337.1 kPa
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Average Production Well Pressure Drop: 1100.8 kPa
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Average Buoyancy Pressure Drop: -2684.7 kPa
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***CAPITAL COSTS (M$)***
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Drilling and completion costs: 115.20 MUSD
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Drilling and completion costs per well: 4.80 MUSD
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Stimulation costs: 10.00 MUSD
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Surface power plant costs: 334.63 MUSD
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Field gathering system costs: 23.00 MUSD
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Total surface equipment costs: 357.63 MUSD
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Exploration costs: 0.00 MUSD
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Total capital costs: 482.83 MUSD
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***OPERATING AND MAINTENANCE COSTS (M$/yr)***
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Wellfield maintenance costs: 2.06 MUSD/yr
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Power plant maintenance costs: 7.06 MUSD/yr
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Water costs: 0.62 MUSD/yr
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Total operating and maintenance costs: 9.74 MUSD/yr
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***SURFACE EQUIPMENT SIMULATION RESULTS***
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Initial geofluid availability: 0.18 MW/(kg/s)
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Maximum Total Electricity Generation: 111.10 MW
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Average Total Electricity Generation: 106.32 MW
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Minimum Total Electricity Generation: 78.86 MW
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Initial Total Electricity Generation: 109.33 MW
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Maximum Net Electricity Generation: 93.42 MW
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Average Net Electricity Generation: 88.50 MW
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Minimum Net Electricity Generation: 60.25 MW
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Initial Net Electricity Generation: 91.64 MW
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Average Annual Total Electricity Generation: 833.28 GWh
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Average Annual Net Electricity Generation: 693.77 GWh
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Initial pumping power/net installed power: 19.31 %
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Average Pumping Power: 17.82 MW
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************************************************************
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* HEATING, COOLING AND/OR ELECTRICITY PRODUCTION PROFILE *
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************************************************************
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YEAR THERMAL GEOFLUID PUMP NET FIRST LAW
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DRAWDOWN TEMPERATURE POWER POWER EFFICIENCY
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(degC) (MW) (MW) (%)
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1 1.0000 195.90 17.6929 91.6401 13.3222
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2 1.0044 196.77 17.6844 92.8580 13.4160
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3 1.0053 196.94 17.6826 93.1066 13.4351
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4 1.0058 197.03 17.6817 93.2356 13.4449
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5 1.0061 197.10 17.6812 93.3206 13.4514
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6 1.0063 197.14 17.6808 93.3814 13.4561
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7 1.0064 197.16 17.6809 93.4146 13.4586
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8 1.0063 197.14 17.6827 93.3794 13.4558
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9 1.0055 196.99 17.6895 93.1598 13.4387
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10 1.0033 196.55 17.7077 92.5261 13.3891
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11 0.9983 195.57 17.7471 91.1195 13.2784
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12 0.9889 193.72 17.8205 88.4867 13.0678
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13 0.9733 190.67 17.9403 84.1709 12.7128
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14 0.9500 186.11 18.1160 77.8405 12.1687
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15 0.9183 179.90 18.3503 69.4176 11.3970
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*******************************************************************
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* ANNUAL HEATING, COOLING AND/OR ELECTRICITY PRODUCTION PROFILE *
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*******************************************************************
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YEAR ELECTRICITY HEAT RESERVOIR PERCENTAGE OF
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PROVIDED EXTRACTED HEAT CONTENT TOTAL HEAT MINED
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(GWh/year) (GWh/year) (10^15 J) (%)
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1 728.7 5444.9 387.93 4.81
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2 733.2 5460.8 368.28 9.63
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3 734.6 5465.6 348.60 14.46
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4 735.4 5468.5 328.91 19.29
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5 736.0 5470.5 309.22 24.12
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6 736.4 5471.8 289.52 28.96
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7 736.4 5472.0 269.82 33.79
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8 735.5 5468.9 250.13 38.62
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9 732.3 5458.1 230.48 43.44
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10 724.6 5431.5 210.93 48.24
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11 709.0 5377.7 191.57 52.99
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12 681.8 5283.6 172.55 57.66
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13 640.0 5136.7 154.06 62.20
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14 581.8 4928.0 136.32 66.55
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15 460.8 4203.2 121.18 70.26
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********************************
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* REVENUE & CASHFLOW PROFILE *
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********************************
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Year Electricity | Heat | Cooling | Carbon | Project
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Since Price Ann. Rev. Cumm. Rev. | Price Ann. Rev. Cumm. Rev. | Price Ann. Rev. Cumm. Rev. | Price Ann. Rev. Cumm. Rev. | OPEX Net Rev. Net Cashflow
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Start (cents/kWh)(MUSD/yr) (MUSD) |(cents/kWh) (MUSD/yr) (MUSD) |(cents/kWh) (MUSD/yr) (MUSD) |(USD/tonne) (MUSD/yr) (MUSD) |(MUSD/yr) (MUSD/yr) (MUSD)
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________________________________________________________________________________________________________________________________________________________________________________________
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1 0.00 -482.83 0.00 | 0.00 0.00 0.00 | 0.00 0.00 0.00 | 0.00 0.00 0.00 | 0.00 -482.83 -482.83
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2 15.00 99.57 109.30 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 9.74 99.57 -383.26
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3 15.00 100.24 219.29 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 9.74 100.24 -283.02
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4 15.41 103.43 332.45 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 9.74 103.43 -179.58
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5 15.81 106.54 448.73 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 9.74 106.54 -73.05
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6 16.22 109.61 568.08 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 9.74 109.61 36.57
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7 16.62 112.66 690.47 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 9.74 112.66 149.23
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8 17.03 115.65 815.86 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 9.74 115.65 264.88
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9 17.43 118.48 944.07 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 9.74 118.48 383.35
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10 17.84 120.89 1074.70 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 9.74 120.89 504.25
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11 18.24 122.44 1206.88 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 9.74 122.44 626.69
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12 18.65 122.47 1339.09 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 9.74 122.47 749.16
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13 19.05 120.18 1469.00 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 9.74 120.18 869.34
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14 19.46 114.80 1593.54 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 9.74 114.80 984.14
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15 19.86 105.83 1709.11 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 9.74 105.83 1089.97

tests/examples/Fervo_Project_Cape.txt

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# Fervo Project Cape
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# Presented at NREL GEOPHIRES workshop 2024-07-18
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# https://gtp.scientificwebservices.com/geophires/?shared-geophires-result-id=2bfa1f9f-d50b-476e-a05f-90e7f6a84ac1
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Reservoir Model, 1
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Reservoir Volume Option, 1
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Reservoir Density, 2800
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Reservoir Depth, 8500 feet, -- https://pangea.stanford.edu/ERE/db/GeoConf/papers/SGW/2024/Fercho.pdf
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Reservoir Heat Capacity, 1000
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Reservoir Thermal Conductivity, 2.7
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Number of Fractures, 100
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Fracture Shape, 4
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Fracture Height, 300
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Fracture Width, 2400
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Fracture Separation, 15
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Number of Segments, 1
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Gradient 1, 73, -- temperature at 8500 ft: 200 deg C (https://pangea.stanford.edu/ERE/db/GeoConf/papers/SGW/2024/Fercho.pdf)
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Plant Outlet Pressure, 1000 psi
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Number of Injection Wells, 12, -- Reservoir artificially increased by a factor of 12 (12 doublets)
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Number of Production Wells, 12
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Well Geometry Configuration, 4
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Has Nonvertical Section, True
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Multilaterals Cased, True
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Number of Multilateral Sections, 2
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Total Nonvertical Length, 5000 feet
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Production Flow Rate per Well, 98
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Production Well Diameter, 8
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Injection Well Diameter, 8
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Well Separation, 365 feet
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Injection Temperature, 60 degC
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Injection Wellbore Temperature Gain, 3
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Reservoir Impedance, 0.01
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Ramey Production Wellbore Model, 1
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Utilization Factor, .9
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Water Loss Fraction, 0.02
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Maximum Drawdown, 1
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Ambient Temperature, 10 degC
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Surface Temperature, 10 degC
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End-Use Option, 1
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Plant Lifetime, 15
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Power Plant Type, 2
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Circulation Pump Efficiency, 0.80
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Exploration Capital Cost, 0
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Well Drilling and Completion Capital Cost, 4.8, -- https://houston.innovationmap.com/fervo-energy-drilling-utah-project-2667300142.html
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Reservoir Stimulation Capital Cost, 10
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Economic Model, 3
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Starting Electricity Sale Price, 0.15
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Ending Electricity Sale Price, 1.00
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Electricity Escalation Rate Per Year, 0.004053223
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Electricity Escalation Start Year, 1
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Fraction of Investment in Bonds, .5
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Combined Income Tax Rate, .3
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Gross Revenue Tax Rate, 0
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Inflated Bond Interest Rate, .05
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Inflated Equity Interest Rate, .08
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Inflation Rate, .02
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Investment Tax Credit Rate, 0
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Inflation Rate During Construction, 0.05
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Property Tax Rate, 0
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Time steps per year, 10

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