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adjust flow rate, production wellhead pressure, and plant lifetime
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‎tests/examples/Fervo_Project_Red-2026.out‎

Lines changed: 54 additions & 78 deletions
Original file line numberDiff line numberDiff line change
@@ -6,17 +6,17 @@ Simulation Metadata
66
----------------------
77
GEOPHIRES Version: 3.13.1
88
Simulation Date: 2026-04-19
9-
Simulation Time: 07:42
10-
Calculation Time: 0.522 sec
9+
Simulation Time: 08:13
10+
Calculation Time: 0.138 sec
1111

1212
***SUMMARY OF RESULTS***
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End-Use Option: Electricity
15-
Average Net Electricity Production: 2.10 MW
16-
Electricity breakeven price: 30.27 cents/kWh
15+
Average Net Electricity Production: 1.94 MW
16+
Electricity breakeven price: 107.03 cents/kWh
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Number of production wells: 1
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Number of injection wells: 1
19-
Flowrate per production well: 41.0 kg/sec
19+
Flowrate per production well: 36.0 kg/sec
2020
Well depth: 2.3 kilometer
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Geothermal gradient: 74 degC/km
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@@ -25,15 +25,15 @@ Simulation Metadata
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Economic Model = BICYCLE
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Accrued financing during construction: 5.00 %
28-
Inflation costs during construction: 1.41 MUSD
29-
Project lifetime: 10 yr
28+
Inflation costs during construction: 1.33 MUSD
29+
Project lifetime: 2 yr
3030
Capacity factor: 90.0 %
31-
Project NPV: -16.16 MUSD
32-
Project IRR: -7.79 %
33-
Project VIR=PI=PIR: 0.43
34-
Project MOIC: -0.29
31+
Project NPV: -24.01 MUSD
32+
Project IRR: -73.48 %
33+
Project VIR=PI=PIR: 0.10
34+
Project MOIC: -0.84
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Project Payback Period: N/A
36-
Estimated Jobs Created: 6
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Estimated Jobs Created: 5
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***ENGINEERING PARAMETERS***
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@@ -42,10 +42,10 @@ Simulation Metadata
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Well depth: 2.3 kilometer
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Water loss rate: 30.0 %
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Pump efficiency: 80.0 %
45-
Injection temperature: 54.7 degC
45+
Injection temperature: 54.8 degC
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Production Wellbore heat transmission calculated with Ramey's model
47-
Average production well temperature drop: 3.8 degC
48-
Flowrate per production well: 41.0 kg/sec
47+
Average production well temperature drop: 5.2 degC
48+
Flowrate per production well: 36.0 kg/sec
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Injection well casing ID: 7.000 in
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Production well casing ID: 7.000 in
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Number of times redrilling: 0
@@ -79,18 +79,18 @@ Simulation Metadata
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***RESERVOIR SIMULATION RESULTS***
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82-
Maximum Production Temperature: 175.7 degC
83-
Average Production Temperature: 174.4 degC
84-
Minimum Production Temperature: 165.4 degC
85-
Initial Production Temperature: 173.5 degC
86-
Average Reservoir Heat Extraction: 20.58 MW
82+
Maximum Production Temperature: 174.8 degC
83+
Average Production Temperature: 174.2 degC
84+
Minimum Production Temperature: 172.7 degC
85+
Initial Production Temperature: 172.7 degC
86+
Average Reservoir Heat Extraction: 18.02 MW
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Production Wellbore Heat Transmission Model = Ramey Model
88-
Average Production Well Temperature Drop: 3.8 degC
89-
Total Average Pressure Drop: 11989.9 kPa
90-
Average Injection Well Pressure Drop: 537.6 kPa
91-
Average Reservoir Pressure Drop: 12914.1 kPa
92-
Average Production Well Pressure Drop: 342.2 kPa
93-
Average Buoyancy Pressure Drop: -1804.0 kPa
88+
Average Production Well Temperature Drop: 5.2 degC
89+
Total Average Pressure Drop: 10197.1 kPa
90+
Average Injection Well Pressure Drop: 415.9 kPa
91+
Average Reservoir Pressure Drop: 11339.2 kPa
92+
Average Production Well Pressure Drop: 264.6 kPa
93+
Average Buoyancy Pressure Drop: -1822.6 kPa
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***CAPITAL COSTS (M$)***
@@ -101,52 +101,44 @@ Simulation Metadata
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Drilling and completion costs per vertical injection well: 3.02 MUSD
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Drilling and completion costs per non-vertical section: 1.80 MUSD
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Stimulation costs: 1.51 MUSD
104-
Surface power plant costs: 11.34 MUSD
105-
Field gathering system costs: 1.60 MUSD
106-
Total surface equipment costs: 12.94 MUSD
107-
Total capital costs: 28.21 MUSD
104+
Surface power plant costs: 9.91 MUSD
105+
Field gathering system costs: 1.50 MUSD
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Total surface equipment costs: 11.40 MUSD
107+
Total capital costs: 26.67 MUSD
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***OPERATING AND MAINTENANCE COSTS (M$/yr)***
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112-
Wellfield maintenance costs: 0.21 MUSD/yr
113-
Power plant maintenance costs: 0.45 MUSD/yr
114-
Water costs: 0.32 MUSD/yr
115-
Total operating and maintenance costs: 0.98 MUSD/yr
112+
Wellfield maintenance costs: 0.19 MUSD/yr
113+
Power plant maintenance costs: 0.36 MUSD/yr
114+
Water costs: 0.28 MUSD/yr
115+
Total operating and maintenance costs: 0.83 MUSD/yr
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***SURFACE EQUIPMENT SIMULATION RESULTS***
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Initial geofluid availability: 0.15 MW/(kg/s)
120-
Maximum Total Electricity Generation: 2.97 MW
121-
Average Total Electricity Generation: 2.91 MW
122-
Minimum Total Electricity Generation: 2.52 MW
123-
Initial Total Electricity Generation: 2.87 MW
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Maximum Net Electricity Generation: 2.16 MW
125-
Average Net Electricity Generation: 2.10 MW
126-
Minimum Net Electricity Generation: 1.69 MW
127-
Initial Net Electricity Generation: 2.06 MW
128-
Average Annual Total Electricity Generation: 22.95 GWh
129-
Average Annual Net Electricity Generation: 16.54 GWh
130-
Initial pumping power/net installed power: 39.43 %
131-
Average Pumping Power: 0.81 MW
132-
Heat to Power Conversion Efficiency: 10.19 %
120+
Maximum Total Electricity Generation: 2.57 MW
121+
Average Total Electricity Generation: 2.55 MW
122+
Minimum Total Electricity Generation: 2.49 MW
123+
Initial Total Electricity Generation: 2.49 MW
124+
Maximum Net Electricity Generation: 1.96 MW
125+
Average Net Electricity Generation: 1.94 MW
126+
Minimum Net Electricity Generation: 1.88 MW
127+
Initial Net Electricity Generation: 1.88 MW
128+
Average Annual Total Electricity Generation: 20.10 GWh
129+
Average Annual Net Electricity Generation: 15.31 GWh
130+
Initial pumping power/net installed power: 32.25 %
131+
Average Pumping Power: 0.61 MW
132+
Heat to Power Conversion Efficiency: 10.77 %
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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
139139
(degC) (MW) (MW) (%)
140-
1 1.0000 173.51 0.8118 2.0586 10.0774
141-
2 1.0088 175.03 0.8112 2.1275 10.2825
142-
3 1.0106 175.35 0.8111 2.1418 10.3248
143-
4 1.0116 175.51 0.8110 2.1493 10.3467
144-
5 1.0122 175.62 0.8110 2.1543 10.3612
145-
6 1.0126 175.70 0.8110 2.1578 10.3714
146-
7 1.0127 175.71 0.8110 2.1583 10.3728
147-
8 1.0112 175.45 0.8115 2.1459 10.3359
148-
9 1.0044 174.27 0.8134 2.0912 10.1714
149-
10 0.9858 171.04 0.8184 1.9430 9.7127
140+
1 1.0000 172.75 0.6074 1.8834 10.5805
141+
2 1.0099 174.46 0.6069 1.9508 10.8030
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*******************************************************************
@@ -155,16 +147,8 @@ Simulation Metadata
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YEAR ELECTRICITY HEAT RESERVOIR PERCENTAGE OF
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PROVIDED EXTRACTED HEAT CONTENT TOTAL HEAT MINED
157149
(GWh/year) (GWh/year) (10^15 J) (%)
158-
1 16.6 162.4 6.61 8.12
159-
2 16.8 163.4 6.02 16.29
160-
3 16.9 163.7 5.44 24.48
161-
4 17.0 163.9 4.85 32.68
162-
5 17.0 164.0 4.25 40.88
163-
6 17.0 164.0 3.66 49.09
164-
7 17.0 163.9 3.07 57.28
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8 16.7 163.0 2.49 65.44
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9 16.0 160.2 1.91 73.45
167-
10 14.4 154.2 1.36 81.17
150+
1 15.2 141.6 6.69 7.09
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2 15.4 142.6 6.17 14.22
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********************************
@@ -174,14 +158,6 @@ Year Electricity | Heat |
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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/lb) (MUSD/yr) (MUSD) |(MUSD/yr) (MUSD/yr) (MUSD)
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________________________________________________________________________________________________________________________________________________________________________________________
177-
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 -28.21 -28.21
178-
1 15.00 2.49 2.49 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 0.98 1.51 -26.70
179-
2 15.00 2.53 5.01 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 0.98 1.54 -25.16
180-
3 15.41 2.61 7.62 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 0.98 1.63 -23.53
181-
4 15.81 2.68 10.30 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 0.98 1.70 -21.83
182-
5 16.22 2.76 13.06 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 0.98 1.78 -20.05
183-
6 16.62 2.83 15.89 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 0.98 1.85 -18.21
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7 17.03 2.89 18.78 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 0.98 1.91 -16.30
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8 17.43 2.92 21.70 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 0.98 1.94 -14.36
186-
9 17.84 2.85 24.55 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 0.98 1.87 -12.49
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10 18.24 2.63 27.17 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 0.98 1.65 -10.84
161+
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 -26.67 -26.67
162+
1 15.00 2.28 2.28 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 0.83 1.45 -25.22
163+
2 15.00 2.32 4.59 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 0.83 1.49 -23.73

‎tests/examples/Fervo_Project_Red-2026.txt‎

Lines changed: 3 additions & 2 deletions
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@@ -26,7 +26,8 @@ Number of Multilateral Sections, 2, -- Two parallel horizontal sections
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Nonvertical Length per Multilateral Section, 3250 feet, -- per the paper
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Well Drilling Cost Correlation, 10, -- per the drill cost paper - works out to $400/ft
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Horizontal Well Drilling Cost Correlation, 10, -- per the drill cost paper - works out to $400/ft
29-
Production Flow Rate per Well, 41, -- =650 gpm per the paper - per the paper the maximum flow rate was 63 L/s but the range was 550-750 gpm
29+
Production Flow Rate per Well, 36, -- per https://fervoenergy.com/enhanced-geothermal-has-been-proven-at-scale-heres-what-two-years-of-production-data-show/
30+
Production Wellhead Pressure, 225 psi, -- per https://fervoenergy.com/enhanced-geothermal-has-been-proven-at-scale-heres-what-two-years-of-production-data-show/
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Production Well Diameter, 7, -- per the paper
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Injection Well Diameter, 7, -- per the paper
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Well Separation, 365 feet, -- per the paper
@@ -40,7 +41,7 @@ Maximum Drawdown, 1, -- no redrilling considered
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Ambient Temperature, 8 degC, -- per the paper. Published ambient is 10.27 degC
4142
Surface Temperature, 8 degC, -- per the paper. Published ambient is 10.27 degC
4243
End-Use Option, 1, -- electricity as the main product
43-
Plant Lifetime, 10
44+
Plant Lifetime, 2, -- 614 days of operation from April 2023 to April 2026
4445
Power Plant Type, 2, -- supercritical binary cycle
4546
End-Use Efficiency Factor, .9
4647
Circulation Pump Efficiency, 0.80, -- per the paper

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