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increase time steps per year 100 (GEOPHIRES max, for now, TODO to increase at some point...)
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‎docs/Fervo_Project_Red.md‎

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@@ -35,7 +35,7 @@ thermal conditioning phase and steady-state operations.
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This boundary is an analytical judgment call necessitated by structural differences in the models: the Fervo curve
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appears to assume an idealized steady-state flow from inception, omitting the early thermal ramp-up phase entirely.
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Conversely, while the GEOPHIRES (Gringarten) model does account for early transient heat transfer, its precision
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during this rapid ramp-up is inherently constrained by its temporal resolution (one simulation time step per month).
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during this rapid ramp-up is inherently constrained by its temporal resolution (100 time steps per year).
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## Production Temperature: Measured vs. Modeled
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‎docs/_images/fervo_project_red-2026_production-temperature-data-vs-modeling-1.png‎

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‎docs/_images/fervo_project_red-2026_production-temperature-data-vs-modeling-2.png‎

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‎tests/examples/Fervo_Project_Red-2026.out‎

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@@ -6,14 +6,14 @@ Simulation Metadata
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----------------------
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GEOPHIRES Version: 3.13.1
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Simulation Date: 2026-04-20
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Simulation Time: 13:52
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Calculation Time: 0.157 sec
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Simulation Time: 15:10
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Calculation Time: 1.010 sec
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***SUMMARY OF RESULTS***
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End-Use Option: Electricity
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Average Net Electricity Production: 1.98 MW
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Electricity breakeven price: 107.61 cents/kWh
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Electricity breakeven price: 107.59 cents/kWh
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Number of production wells: 1
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Number of injection wells: 1
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Flowrate per production well: 36.0 kg/sec
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Project lifetime: 2 yr
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Capacity factor: 90.0 %
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Project NPV: -24.67 MUSD
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Project IRR: -74.31 %
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Project IRR: -74.27 %
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Project VIR=PI=PIR: 0.10
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Project MOIC: -0.84
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Project Payback Period: N/A
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Pump efficiency: 80.0 %
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Injection temperature: 56.4 degC
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Production Wellbore heat transmission calculated with Ramey's model
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Average production well temperature drop: 4.7 degC
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Average production well temperature drop: 4.8 degC
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Flowrate per production well: 36.0 kg/sec
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Injection well casing ID: 4.276 in
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Production well casing ID: 4.276 in
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***RESERVOIR SIMULATION RESULTS***
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Maximum Production Temperature: 181.5 degC
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Average Production Temperature: 179.9 degC
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Average Production Temperature: 180.0 degC
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Minimum Production Temperature: 174.1 degC
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Initial Production Temperature: 180.2 degC
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Average Reservoir Heat Extraction: 18.66 MW
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Initial Production Temperature: 177.7 degC
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Average Reservoir Heat Extraction: 18.67 MW
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Production Wellbore Heat Transmission Model = Ramey Model
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Average Production Well Temperature Drop: 4.7 degC
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Average Production Well Temperature Drop: 4.8 degC
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Average Injection Well Pump Pressure Drop: 2655.7 kPa
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Average Production Well Pump Pressure Drop: 10752.8 kPa
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Average Production Well Pump Pressure Drop: 10751.1 kPa
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***CAPITAL COSTS (M$)***
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***SURFACE EQUIPMENT SIMULATION RESULTS***
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Initial geofluid availability: 0.16 MW/(kg/s)
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Initial geofluid availability: 0.15 MW/(kg/s)
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Maximum Total Electricity Generation: 2.74 MW
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Average Total Electricity Generation: 2.68 MW
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Minimum Total Electricity Generation: 2.45 MW
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Initial Total Electricity Generation: 2.69 MW
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Initial Total Electricity Generation: 2.59 MW
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Maximum Net Electricity Generation: 2.04 MW
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Average Net Electricity Generation: 1.98 MW
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Minimum Net Electricity Generation: 1.75 MW
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Initial Net Electricity Generation: 1.99 MW
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Average Annual Total Electricity Generation: 21.12 GWh
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Initial Net Electricity Generation: 1.89 MW
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Average Annual Total Electricity Generation: 21.13 GWh
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Average Annual Net Electricity Generation: 15.63 GWh
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Initial pumping power/net installed power: 35.02 %
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Initial pumping power/net installed power: 36.84 %
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Average Pumping Power: 0.70 MW
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Heat to Power Conversion Efficiency: 10.60 %
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Heat to Power Conversion Efficiency: 10.61 %
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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 180.20 0.6969 1.9901 10.6413
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2 1.0064 181.35 0.6969 2.0357 10.7855
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1 1.0000 177.73 0.6971 1.8922 10.3245
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2 1.0207 181.41 0.6969 2.0379 10.7923
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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 16.0 148.6 1.44 27.09
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2 15.3 145.8 0.91 53.67
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1 16.0 148.5 1.44 27.07
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2 15.3 145.9 0.91 53.68
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********************************
@@ -160,5 +160,5 @@ Since Price Ann. Rev. Cumm. Rev. | Price Ann. Rev. Cumm. Rev. | Pr
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Start (cents/kWh)(MUSD/yr) (MUSD) |(cents/kWh) (MUSD/yr) (MUSD) |(cents/kWh) (MUSD/yr) (MUSD) |(USD/lb) (MUSD/yr) (MUSD) |(MUSD/yr) (MUSD/yr) (MUSD)
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________________________________________________________________________________________________________________________________________________________________________________________
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0 0.00 0.00 0.00 | 0.00 0.00 0.00 | 0.00 0.00 0.00 | 0.00 0.00 0.00 | 0.00 -27.33 -27.33
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1 15.00 2.40 2.40 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 0.88 1.52 -25.80
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2 15.00 2.29 4.69 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 0.88 1.41 -24.39
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1 15.00 2.39 2.39 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 0.88 1.52 -25.81
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2 15.00 2.29 4.69 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 0.88 1.42 -24.39

‎tests/examples/Fervo_Project_Red-2026.txt‎

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Property Tax Rate, 0, -- Required for BICYCLE model
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Print Output to Console, 1
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Time steps per year, 12
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Time steps per year, 100

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