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Updated Fervo 400 MWe estimates
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# Case Study: Fervo Project Cape 3: Extrapolation from Fervo results pre-published 2024-09-10 at
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# https://eartharxiv.org/repository/view/7665/ to 400MWe capacity.
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# Norbeck J., Gradl C., and Latimer T. 2024.
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# Norbeck J., -- Gradl C., and Latimer T. 2024.
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# "Deployment of Enhanced Geothermal System technology leads to rapid cost reductions and performance improvements."
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# https://doi.org/10.31223/X5VH8C
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Reservoir Model, 1
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Reservoir Volume Option, 1
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Reservoir Density, 2800
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Reservoir Thermal Conductivity, 3.05
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Reservoir Porosity, 0.0118
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Reservoir Impedance, 0.001
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Number of Fractures, 149
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Fracture Shape, 4
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Fracture Height, 2000
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Fracture Width, 10000
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Fracture Separation, 30
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Number of Segments, 1
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Gradient 1, 74, -- temperature at 8500 ft: 200 degC (https://pangea.stanford.edu/ERE/db/GeoConf/papers/SGW/2024/Fercho.pdf); 228.89 degC @ 9824 ft (https://doi.org/10.31223/X5VH8C)
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Number of Injection Wells, 39
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Number of Production Wells, 39
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Production Flow Rate per Well, 120, -- peak flow reported in paper
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Ambient Temperature, 10 degC
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Surface Temperature, 10 degC
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End-Use Option, 1
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Plant Lifetime, 15
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Plant Lifetime, 20
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Power Plant Type, 2
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Circulation Pump Efficiency, 0.80
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Exploration Capital Cost, 0
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Well Drilling and Completion Capital Cost, 4, -- Assume cost continues to decrease from 4.8 (https://houston.innovationmap.com/fervo-energy-drilling-utah-project-2667300142.html)
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Reservoir Stimulation Capital Cost, 78, -- $1M/well estimated
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Exploration Capital Cost, 30
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Well Drilling and Completion Capital Cost, 5.84, -- $3.84M/well + $2M/well additional stimulation cost
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Reservoir Stimulation Capital Cost, 78, -- $3M/well - $1M as stimulation + $2M represented in well drilling cost
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Economic Model, 3
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Starting Electricity Sale Price, 0.15
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Ending Electricity Sale Price, 1.00
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Inflated Bond Interest Rate, .05
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Inflated Equity Interest Rate, .08
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Inflation Rate, .02
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Investment Tax Credit Rate, 0
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Investment Tax Credit Rate, .3
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Inflation Rate During Construction, 0.05
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Property Tax Rate, 0
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Time steps per year, 10
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Maximum Temperature, 500
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Surface Plant Capital Cost Adjustment Factor, 0.78, -- pad drilling reduces surface CAPEX by 22% https://www.resfrac.com/blog/digesting-the-bonkers-incredible-off-the-charts-spectacular-results-from-the-fervo-and-forge-enhanced-geothermal-projects
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Surface Plant Capital Cost Adjustment Factor, 0.71, -- $1900/kW (peak production)
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Well Geometry Configuration, 4
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Has Nonvertical Section, True
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Multilaterals Cased, True
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Number of Multilateral Sections, 3
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Nonvertical Length per Multilateral Section, 4700 feet
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Nonvertical Length per Multilateral Section, 7500 feet

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