Wellbore Genius
Geothermal screener
Eq. 19-40 electricity output, LCOE bands, pump-split economics, and NPV scenarios for geothermal / EGS prospect screening.
DFIT, geothermal, history match & PVT — modules
Fluid enthalpy
36.84 MW
Gross electric (Eq. 19-40)
4.789 MW
Pump parasitic
0.267 MW
Net electric
4.522 MW
Levelized Cost of Electricity ( economics)
CRF
0.0937
Annual capital
$4.22 M
Annual energy
35652 MWh
LCOE
$143.5/MWh
x Pump parasitic — injection / production split + Darcy–Weisbach head loss
Pump-split sum: 100.00% ✓
All inputs within Swamee–Jain validity (5×10³ ≤ Re ≤ 10⁸, 10⁻⁶ ≤ ε/D ≤ 10⁻²) and shares sum to 100%.
Velocity v
2.55 m/s
Reynolds
5.09e+5
Friction f
0.0158
ΔP_friction
0.639 MPa
Injection pump
0.147 MW
Production pump
0.120 MW
Total parasitic
0.267 MW
Inj/Prod ratio
1.22
ΔP_friction via Darcy–Weisbach with Swamee–Jain explicit f. Pump split assumes one booster lifts produced fluid and a second injects spent brine; total parasitic scales as Q·(ΔP + ΔP_fric)/η_pump.
Economics — Thermal breakthrough · NPV · IRR
t_breakthrough
0.2 yr
Thermal inventory
0.05 TWh
Outlet T @ life
149.0 °C
P(life)/P₀
0.718
Live sensitivity
$85 / MWh
$20$85 base$250
8.0 %
0%8% base25%
NPV
$-39.65 M
IRR
-4.62 %
Payback (yr)
>life
Crossing logic: linear interpolation between bracketing yearly cumulative values. SPB uses undiscounted cum CF (CapEx at yr 0 + Σ annual CF); DPB uses discounted cum NPV (CapEx + Σ PV). Only the first up-crossing (negative → non-negative) is reported.
SPB: 0 crossingsDPB: 0 crossings
SPB warning: Undiscounted cumulative cash flow never crosses zero over the checked window yr 0–25 (final: -25.65 $M). Project does not pay back on a simple basis — extend lifetime or improve economics.
DPB warning: Discounted cumulative NPV never crosses zero over the checked window yr 0–25 (final: -39.65 $M). At this discount rate the project does not recover its CapEx.
IRR & discounted payback
hurdle 8.0% · life 25y
IRR
-4.62 %
IRR − r
-12.62 pp
Discounted payback
> 25 yr
Simple payback
> 25 yr
Discounted payback uses the same r = 8.0% as the NPV curve — it is the year the cumulative discounted cash flow first crosses zero (marked DPB on the chart). IRR is the rate that drives NPV to zero; passing the project requires IRR ≥ r.
Annual cash-flow schedule
| yr | Energy (GWh) | Revenue ($M) | O&M ($M) | CF ($M) | PV ($M) | Cum NPV ($M) | SPB frac | DPB frac |
|---|---|---|---|---|---|---|---|---|
| 0 | — | — | — | −45.00 | −45.00 | −45.0 | — | — |
| 1 | 1.72 | 0.146 | 0.900 | -0.754 | -0.698 | -45.70 | — | — |
| 2 | 6.54 | 0.556 | 0.900 | -0.344 | -0.295 | -45.99 | — | — |
| 3 | 10.15 | 0.863 | 0.900 | -0.037 | -0.030 | -46.02 | — | — |
| 4 | 12.75 | 1.084 | 0.900 | 0.184 | 0.135 | -45.89 | — | — |
| 5 | 14.72 | 1.251 | 0.900 | 0.351 | 0.239 | -45.65 | — | — |
| 6 | 16.26 | 1.382 | 0.900 | 0.482 | 0.304 | -45.35 | — | — |
| 7 | 17.50 | 1.488 | 0.900 | 0.588 | 0.343 | -45.00 | — | — |
| 8 | 18.54 | 1.576 | 0.900 | 0.676 | 0.365 | -44.64 | — | — |
| 9 | 19.42 | 1.651 | 0.900 | 0.751 | 0.375 | -44.26 | — | — |
| 10 | 20.17 | 1.715 | 0.900 | 0.815 | 0.377 | -43.88 | — | — |
| 11 | 20.83 | 1.771 | 0.900 | 0.871 | 0.374 | -43.51 | — | — |
| 12 | 21.42 | 1.820 | 0.900 | 0.920 | 0.366 | -43.15 | — | — |
| 13 | 21.94 | 1.865 | 0.900 | 0.965 | 0.355 | -42.79 | — | — |
| 14 | 22.40 | 1.904 | 0.900 | 1.004 | 0.342 | -42.45 | — | — |
| 15 | 22.82 | 1.940 | 0.900 | 1.040 | 0.328 | -42.12 | — | — |
| 16 | 23.21 | 1.973 | 0.900 | 1.073 | 0.313 | -41.81 | — | — |
| 17 | 23.56 | 2.003 | 0.900 | 1.103 | 0.298 | -41.51 | — | — |
| 18 | 23.88 | 2.030 | 0.900 | 1.130 | 0.283 | -41.23 | — | — |
| 19 | 24.18 | 2.055 | 0.900 | 1.155 | 0.268 | -40.96 | — | — |
| 20 | 24.46 | 2.079 | 0.900 | 1.179 | 0.253 | -40.71 | — | — |
| 21 | 24.72 | 2.101 | 0.900 | 1.201 | 0.239 | -40.47 | — | — |
| 22 | 24.96 | 2.121 | 0.900 | 1.221 | 0.225 | -40.24 | — | — |
| 23 | 25.18 | 2.141 | 0.900 | 1.241 | 0.211 | -40.03 | — | — |
| 24 | 25.40 | 2.159 | 0.900 | 1.259 | 0.198 | -39.83 | — | — |
| 25 | 25.59 | 2.176 | 0.900 | 1.276 | 0.186 | -39.65 | — | — |
| Σ | 492.3 | 41.85 | 22.50 | 19.35 | 5.35 | -39.65 | — | — |
Fluid enthalpy
36.84 MW
Gross electric (Eq. 19-40)
4.789 MW
Pump parasitic
0.267 MW
Net electric
4.522 MW
Levelized Cost of Electricity ( economics)
CRF
0.0937
Annual capital
$4.22 M
Annual energy
35652 MWh
LCOE
$143.5/MWh
x Pump parasitic — injection / production split + Darcy–Weisbach head loss
Pump-split sum: 100.00% ✓
All inputs within Swamee–Jain validity (5×10³ ≤ Re ≤ 10⁸, 10⁻⁶ ≤ ε/D ≤ 10⁻²) and shares sum to 100%.
Velocity v
2.55 m/s
Reynolds
5.09e+5
Friction f
0.0158
ΔP_friction
0.639 MPa
Injection pump
0.147 MW
Production pump
0.120 MW
Total parasitic
0.267 MW
Inj/Prod ratio
1.22
ΔP_friction via Darcy–Weisbach with Swamee–Jain explicit f. Pump split assumes one booster lifts produced fluid and a second injects spent brine; total parasitic scales as Q·(ΔP + ΔP_fric)/η_pump.
Economics — Thermal breakthrough · NPV · IRR
t_breakthrough
0.2 yr
Thermal inventory
0.05 TWh
Outlet T @ life
149.0 °C
P(life)/P₀
0.718
Live sensitivity
$85 / MWh
$20$85 base$250
8.0 %
0%8% base25%
NPV
$-39.65 M
IRR
-4.62 %
Payback (yr)
>life
Crossing logic: linear interpolation between bracketing yearly cumulative values. SPB uses undiscounted cum CF (CapEx at yr 0 + Σ annual CF); DPB uses discounted cum NPV (CapEx + Σ PV). Only the first up-crossing (negative → non-negative) is reported.
SPB: 0 crossingsDPB: 0 crossings
SPB warning: Undiscounted cumulative cash flow never crosses zero over the checked window yr 0–25 (final: -25.65 $M). Project does not pay back on a simple basis — extend lifetime or improve economics.
DPB warning: Discounted cumulative NPV never crosses zero over the checked window yr 0–25 (final: -39.65 $M). At this discount rate the project does not recover its CapEx.
IRR & discounted payback
hurdle 8.0% · life 25y
IRR
-4.62 %
IRR − r
-12.62 pp
Discounted payback
> 25 yr
Simple payback
> 25 yr
Discounted payback uses the same r = 8.0% as the NPV curve — it is the year the cumulative discounted cash flow first crosses zero (marked DPB on the chart). IRR is the rate that drives NPV to zero; passing the project requires IRR ≥ r.
Annual cash-flow schedule
| yr | Energy (GWh) | Revenue ($M) | O&M ($M) | CF ($M) | PV ($M) | Cum NPV ($M) | SPB frac | DPB frac |
|---|---|---|---|---|---|---|---|---|
| 0 | — | — | — | −45.00 | −45.00 | −45.0 | — | — |
| 1 | 1.72 | 0.146 | 0.900 | -0.754 | -0.698 | -45.70 | — | — |
| 2 | 6.54 | 0.556 | 0.900 | -0.344 | -0.295 | -45.99 | — | — |
| 3 | 10.15 | 0.863 | 0.900 | -0.037 | -0.030 | -46.02 | — | — |
| 4 | 12.75 | 1.084 | 0.900 | 0.184 | 0.135 | -45.89 | — | — |
| 5 | 14.72 | 1.251 | 0.900 | 0.351 | 0.239 | -45.65 | — | — |
| 6 | 16.26 | 1.382 | 0.900 | 0.482 | 0.304 | -45.35 | — | — |
| 7 | 17.50 | 1.488 | 0.900 | 0.588 | 0.343 | -45.00 | — | — |
| 8 | 18.54 | 1.576 | 0.900 | 0.676 | 0.365 | -44.64 | — | — |
| 9 | 19.42 | 1.651 | 0.900 | 0.751 | 0.375 | -44.26 | — | — |
| 10 | 20.17 | 1.715 | 0.900 | 0.815 | 0.377 | -43.88 | — | — |
| 11 | 20.83 | 1.771 | 0.900 | 0.871 | 0.374 | -43.51 | — | — |
| 12 | 21.42 | 1.820 | 0.900 | 0.920 | 0.366 | -43.15 | — | — |
| 13 | 21.94 | 1.865 | 0.900 | 0.965 | 0.355 | -42.79 | — | — |
| 14 | 22.40 | 1.904 | 0.900 | 1.004 | 0.342 | -42.45 | — | — |
| 15 | 22.82 | 1.940 | 0.900 | 1.040 | 0.328 | -42.12 | — | — |
| 16 | 23.21 | 1.973 | 0.900 | 1.073 | 0.313 | -41.81 | — | — |
| 17 | 23.56 | 2.003 | 0.900 | 1.103 | 0.298 | -41.51 | — | — |
| 18 | 23.88 | 2.030 | 0.900 | 1.130 | 0.283 | -41.23 | — | — |
| 19 | 24.18 | 2.055 | 0.900 | 1.155 | 0.268 | -40.96 | — | — |
| 20 | 24.46 | 2.079 | 0.900 | 1.179 | 0.253 | -40.71 | — | — |
| 21 | 24.72 | 2.101 | 0.900 | 1.201 | 0.239 | -40.47 | — | — |
| 22 | 24.96 | 2.121 | 0.900 | 1.221 | 0.225 | -40.24 | — | — |
| 23 | 25.18 | 2.141 | 0.900 | 1.241 | 0.211 | -40.03 | — | — |
| 24 | 25.40 | 2.159 | 0.900 | 1.259 | 0.198 | -39.83 | — | — |
| 25 | 25.59 | 2.176 | 0.900 | 1.276 | 0.186 | -39.65 | — | — |
| Σ | 492.3 | 41.85 | 22.50 | 19.35 | 5.35 | -39.65 | — | — |