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example_multiple_gradients.out
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*****************
***CASE REPORT***
*****************
Simulation Metadata
----------------------
GEOPHIRES Version: 3.8.4
Simulation Date: 2025-03-19
Simulation Time: 10:30
Calculation Time: 0.814 sec
***SUMMARY OF RESULTS***
End-Use Option: Electricity
Average Net Electricity Production: 8.00 MW
Electricity breakeven price: 8.36 cents/kWh
Number of production wells: 2
Number of injection wells: 2
Flowrate per production well: 60.0 kg/sec
Well depth: 4.0 kilometer
Segment 1 Geothermal gradient: 50 degC/km
Segment 1 Thickness: 1 kilometer
Segment 2 Geothermal gradient: 40 degC/km
Segment 2 Thickness: 1 kilometer
Segment 3 Geothermal gradient: 30 degC/km
Segment 3 Thickness: 1 kilometer
Segment 4 Geothermal gradient: 50 degC/km
***ECONOMIC PARAMETERS***
Economic Model = Fixed Charge Rate (FCR)
Fixed Charge Rate (FCR): 5.00
Accrued financing during construction: 0.00
Project lifetime: 30 yr
Capacity factor: 90.0 %
Project NPV: -47.23 MUSD
Project IRR: -2.22 %
Project VIR=PI=PIR: 0.31
Project MOIC: -0.16
Project Payback Period: N/A
Estimated Jobs Created: 17
***ENGINEERING PARAMETERS***
Number of Production Wells: 2
Number of Injection Wells: 2
Well depth: 4.0 kilometer
Water loss rate: 2.0
Pump efficiency: 80.0 %
Injection temperature: 50.0 degC
User-provided production well temperature drop
Constant production well temperature drop: 2.0 degC
Flowrate per production well: 60.0 kg/sec
Injection well casing ID: 7.000 in
Production well casing ID: 7.000 in
Number of times redrilling: 0
Power plant type: Supercritical ORC
***RESOURCE CHARACTERISTICS***
Maximum reservoir temperature: 400.0 degC
Number of segments: 4
Segment 1 Geothermal gradient: 50 degC/km
Segment 1 Thickness: 1 kilometer
Segment 2 Geothermal gradient: 40 degC/km
Segment 2 Thickness: 1 kilometer
Segment 3 Geothermal gradient: 30 degC/km
Segment 3 Thickness: 1 kilometer
Segment 4 Geothermal gradient: 50 degC/km
***RESERVOIR PARAMETERS***
Reservoir Model = Multiple Parallel Fractures Model
Bottom-hole temperature: 190.00 degC
Fracture model = Square
Well separation: fracture height: 600.00 meter
Fracture area: 360000.00 m**2
Reservoir volume: 1000000000 m**3
Reservoir hydrostatic pressure: 38390.69 kPa
Plant outlet pressure: 1530.99 kPa
Production wellhead pressure: 1599.94 kPa
Productivity Index: 5.00 kg/sec/bar
Injectivity Index: 5.00 kg/sec/bar
Reservoir density: 2700.00 kg/m**3
Reservoir thermal conductivity: 2.70 W/m/K
Reservoir heat capacity: 1000.00 J/kg/K
***RESERVOIR SIMULATION RESULTS***
Maximum Production Temperature: 188.0 degC
Average Production Temperature: 185.1 degC
Minimum Production Temperature: 177.8 degC
Initial Production Temperature: 188.0 degC
Average Reservoir Heat Extraction: 67.23 MW
Wellbore Heat Transmission Model = Constant Temperature Drop: 2.0 degC
Average Injection Well Pump Pressure Drop: -122.6 kPa
Average Production Well Pump Pressure Drop: 1138.5 kPa
***CAPITAL COSTS (M$)***
Drilling and completion costs: 26.49 MUSD
Drilling and completion costs per well: 6.62 MUSD
Stimulation costs: 3.02 MUSD
Surface power plant costs: 30.27 MUSD
Field gathering system costs: 2.26 MUSD
Total surface equipment costs: 32.53 MUSD
Exploration costs: 6.16 MUSD
Total capital costs: 68.20 MUSD
Annualized capital costs: 3.41 MUSD
***OPERATING AND MAINTENANCE COSTS (M$/yr)***
Wellfield maintenance costs: 0.55 MUSD/yr
Power plant maintenance costs: 1.25 MUSD/yr
Water costs: 0.06 MUSD/yr
Total operating and maintenance costs: 1.86 MUSD/yr
***SURFACE EQUIPMENT SIMULATION RESULTS***
Initial geofluid availability: 0.15 MW/(kg/s)
Maximum Total Electricity Generation: 8.54 MW
Average Total Electricity Generation: 8.19 MW
Minimum Total Electricity Generation: 7.32 MW
Initial Total Electricity Generation: 8.54 MW
Maximum Net Electricity Generation: 8.37 MW
Average Net Electricity Generation: 8.00 MW
Minimum Net Electricity Generation: 7.09 MW
Initial Net Electricity Generation: 8.37 MW
Average Annual Total Electricity Generation: 64.52 GWh
Average Annual Net Electricity Generation: 63.03 GWh
Initial pumping power/net installed power: 2.05 %
Average Pumping Power: 0.19 MW
Heat to Power Conversion Efficiency: 11.89 %
************************************************************
* HEATING, COOLING AND/OR ELECTRICITY PRODUCTION PROFILE *
************************************************************
YEAR THERMAL GEOFLUID PUMP NET FIRST LAW
DRAWDOWN TEMPERATURE POWER POWER EFFICIENCY
(degC) (MW) (MW) (%)
1 1.0000 188.00 0.1715 8.3701 12.1869
2 1.0000 188.00 0.1715 8.3701 12.1869
3 1.0000 188.00 0.1715 8.3701 12.1869
4 1.0000 188.00 0.1715 8.3701 12.1869
5 1.0000 188.00 0.1715 8.3701 12.1868
6 1.0000 188.00 0.1715 8.3699 12.1867
7 1.0000 187.99 0.1716 8.3690 12.1860
8 0.9998 187.97 0.1717 8.3663 12.1839
9 0.9996 187.93 0.1720 8.3606 12.1795
10 0.9992 187.85 0.1724 8.3506 12.1717
11 0.9986 187.73 0.1731 8.3352 12.1597
12 0.9977 187.57 0.1741 8.3138 12.1431
13 0.9966 187.35 0.1754 8.2861 12.1214
14 0.9951 187.09 0.1770 8.2519 12.0947
15 0.9935 186.77 0.1789 8.2115 12.0630
16 0.9916 186.42 0.1811 8.1652 12.0265
17 0.9894 186.01 0.1835 8.1134 11.9856
18 0.9871 185.57 0.1862 8.0565 11.9405
19 0.9845 185.09 0.1890 7.9952 11.8916
20 0.9818 184.58 0.1921 7.9299 11.8393
21 0.9789 184.04 0.1953 7.8612 11.7839
22 0.9759 183.48 0.1986 7.7895 11.7258
23 0.9728 182.89 0.2021 7.7153 11.6653
24 0.9696 182.29 0.2056 7.6390 11.6027
25 0.9663 181.66 0.2093 7.5609 11.5383
26 0.9629 181.03 0.2130 7.4815 11.4723
27 0.9595 180.39 0.2167 7.4010 11.4050
28 0.9560 179.73 0.2205 7.3197 11.3366
29 0.9525 179.07 0.2243 7.2379 11.2673
30 0.9490 178.41 0.2282 7.1557 11.1971
*******************************************************************
* ANNUAL HEATING, COOLING AND/OR ELECTRICITY PRODUCTION PROFILE *
*******************************************************************
YEAR ELECTRICITY HEAT RESERVOIR PERCENTAGE OF
PROVIDED EXTRACTED HEAT CONTENT TOTAL HEAT MINED
(GWh/year) (GWh/year) (10^15 J) (%)
1 66.0 541.5 376.05 0.52
2 66.0 541.5 374.10 1.03
3 66.0 541.5 372.15 1.55
4 66.0 541.5 370.20 2.06
5 66.0 541.5 368.25 2.58
6 66.0 541.5 366.30 3.09
7 66.0 541.4 364.35 3.61
8 65.9 541.3 362.41 4.13
9 65.9 541.1 360.46 4.64
10 65.8 540.7 358.51 5.16
11 65.6 540.1 356.57 5.67
12 65.4 539.4 354.63 6.18
13 65.2 538.4 352.69 6.70
14 64.9 537.3 350.75 7.21
15 64.6 536.0 348.82 7.72
16 64.2 534.5 346.90 8.23
17 63.7 532.8 344.98 8.74
18 63.3 531.0 343.07 9.24
19 62.8 529.1 341.16 9.74
20 62.3 527.0 339.27 10.25
21 61.7 524.9 337.38 10.75
22 61.1 522.6 335.50 11.24
23 60.5 520.3 333.62 11.74
24 59.9 517.9 331.76 12.23
25 59.3 515.4 329.90 12.72
26 58.7 512.9 328.06 13.21
27 58.0 510.3 326.22 13.70
28 57.4 507.8 324.39 14.18
29 56.7 505.1 322.57 14.66
30 56.1 502.7 320.76 15.14
********************************
* REVENUE & CASHFLOW PROFILE *
********************************
Year Electricity | Heat | Cooling | Carbon | Project
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
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)
________________________________________________________________________________________________________________________________________________________________________________________
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 -68.20 -68.20
1 5.50 3.63 3.63 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.77 -66.43
2 5.50 3.63 7.26 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.77 -64.66
3 5.50 3.63 10.89 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.77 -62.89
4 5.50 3.63 14.52 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.77 -61.12
5 5.50 3.63 18.15 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.77 -59.35
6 5.50 3.63 21.78 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.77 -57.58
7 5.50 3.63 25.40 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.77 -55.81
8 5.50 3.63 29.03 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.77 -54.04
9 5.50 3.62 32.65 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.76 -52.28
10 5.50 3.62 36.27 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.76 -50.52
11 5.50 3.61 39.88 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.75 -48.77
12 5.50 3.60 43.48 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.74 -47.03
13 5.50 3.59 47.07 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.73 -45.31
14 5.50 3.57 50.64 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.71 -43.60
15 5.50 3.55 54.19 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.69 -41.90
16 5.50 3.53 57.72 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.67 -40.24
17 5.50 3.51 61.22 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.65 -38.59
18 5.50 3.48 64.70 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.62 -36.97
19 5.50 3.45 68.16 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.59 -35.38
20 5.50 3.42 71.58 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.56 -33.81
21 5.50 3.39 74.97 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.53 -32.28
22 5.50 3.36 78.34 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.50 -30.78
23 5.50 3.33 81.66 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.47 -29.31
24 5.50 3.30 84.96 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.44 -27.87
25 5.50 3.26 88.22 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.40 -26.47
26 5.50 3.23 91.45 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.37 -25.10
27 5.50 3.19 94.64 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.33 -23.77
28 5.50 3.16 97.80 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.30 -22.47
29 5.50 3.12 100.92 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.26 -21.21
30 5.50 3.09 104.01 | 2.50 0.00 0.00 | 2.50 0.00 0.00 | 0.00 0.00 0.00 | 1.86 1.23 -19.99