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copy edit - 'ATB baseline' is redundant
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docs/Fervo_Project_Cape-4.md

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| Economic Model | SAM Single Owner PPA | The SAM Single Owner PPA economic model is used to calculate financial results including LCOE, NPV, IRR, and pro-forma cash flow analysis. See [GEOPHIRES documentation of SAM Economic Models](https://softwareengineerprogrammer.github.io/GEOPHIRES/SAM-Economic-Models.html) for details on how System Advisor Model financial models are integrated into GEOPHIRES. |
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| Inflation Rate | 2.3% | US inflation rate as of April 2025 |
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| PPA Price | Starting at 9.5 cents/kWh, escalating to 10 cents/kWh by project year 11 | Upper end of ranges given in 2024 NREL ATB baseline (NREL, 2024). Both PPAs 'firm for 10 years at less than $100/MWh' estimate given in a podcast. |
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| PPA Price | Starting at 9.5 cents/kWh, escalating to 10 cents/kWh by project year 11 | Upper end of ranges given in 2024 NREL ATB (NREL, 2024). Both PPAs 'firm for 10 years at less than $100/MWh' estimate given in a podcast. |
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| Well Drilling Cost Correlation & Adjustment Factor | Vertical large baseline correlation + adjustment factor = 0.84 to align with Fervo claimed drilling costs of <$4M/well | Akindipe & Witter, 2025; Latimer, 2025. |
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| Reservoir Stimulation Capital Cost Adjustment Factor | 2.66 | Estimated cost of ~$2M per well. Typical range for Nth-of-kind projects may be $0.5–2M. |
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| Capital Cost for Power Plant for Electricity Generation | $1900/kW | US DOE, 2021. |

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