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Set Number of Multilateral Sections = 0 with comment explaining how vertical and horizontal costs are lumped for better result clarity. TODO to investigate using a deviated drilling correlation to possibly 'better' represent costs
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‎docs/Fervo_Project_Cape-4.md

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@@ -8,7 +8,7 @@ Financial results are calculated
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using
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the [SAM Single Owner PPA Economic Model](https://softwareengineerprogrammer.github.io/GEOPHIRES/SAM-Economic-Models.html#sam-single-owner-ppa).
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Key case study results include LCOE = $76.5/MWh and CAPEX = $4350/kW.
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Key case study results include LCOE = $76.3/MWh and CAPEX = $4340/kW.
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[Click here](https://gtp.scientificwebservices.com/geophires/?geophires-example-id=Fervo_Project_Cape-4) to
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interactively explore the case study in the GEOPHIRES web interface.
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| Metric | Result Value | Reference Value(s) | Reference Source |
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|------------------------------------|----------------------------------------------------------|--------------------------|---------------------------------------------|
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| LCOE | $76.5/MWh | $80/MWh | Horne et al, 2025 |
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| LCOE | $76.3/MWh | $80/MWh | Horne et al, 2025 |
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| Project capital costs: Total CAPEX | $2.67B | | |
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| Project capital costs: $/kW | $4350/kW (based on maximum total electricity generation) | $4500/kW, $3000–$6000/kW | Horne et al, 2025; Latimer, 2025. |
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| Well Drilling and Completion Cost | $3.96M/well | $<4M/well | Latimer, 2025. |
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| Project capital costs: $/kW | $4340/kW (based on maximum total electricity generation) | $4500/kW, $3000–$6000/kW | Horne et al, 2025; Latimer, 2025. |
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| Well Drilling and Completion Cost | $3.96M/well (before 5% indirect costs) | $<4M/well | Latimer, 2025. |
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| WACC | 8.3% | 8.3% | Matson, 2024. |
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| After-tax IRR | 30.7% | 15–25% | Typical levered returns for energy projects |
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| After-tax IRR | 30.8% | 15–25% | Typical levered returns for energy projects |
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### Technical & Engineering Results
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| Metric | Result Value | Reference Value(s) | Reference Source |
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|-------------------------------------------------|--------------|----------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| Minimum Net Electricity Generation | 503 MW | 500 MW | Fervo Energy, 2025. The 500 MW PPA is interpreted to mean that Cape Station's net electricity generation must never fall below 500 MWe. |
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| Maximum Total Electricity Generation | 615 MW | | Actual maximum total generation may be bounded or constrained by modular power plant design not modeled in this case study. For example, a modular design with 50MW units may constrain maximum total generation to 600 MW. |
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| Maximum Total Electricity Generation | 614 MW | | Actual maximum total generation may be bounded or constrained by modular power plant design not modeled in this case study. For example, a modular design with 50MW units may constrain maximum total generation to 600 MW. |
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| Number of times redrilling | 3 | 3–6 | Redrilling expected to be required within 5–10 years of project start |
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| Average Production Temperature | 199℃ | 204℃, 190.6–198.6℃ (optimal plant operating range) | Trent, 2024; Norbeck et al, 2024. |
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| Total fracture surface area per production well | 2.787×10⁶ m² | 2.787×10⁶ m² (30 million ft² per well) | Fercho et al, 2025. |

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