Fervo 400MWe updates [v3.6.3]

[softwareengineerprogrammer]

Updates per today's sync:

1. Water loss fraction 2% -> 5%
2. Plant lifetime 15 years -> 20 years
3. Exploration capital cost $0M -> $30M
4. Well drilling/completion cost $4M -> $3.84M
5. Stimulation cost $78M -> $234M
6. ITC 0% -> 30%
7. Surface plant cost adjustment factor 0.78 -> 0.71 to approximate $1900/kW peak production
8. Lateral length 4700 -> 7500 feet (has no effect on output, accounted for in well capex)

[kfbeckers]

I think we have to put the lateral length back to 4700 (or 5000) ft as the drilling cost currently assumed ($~3.8M/well) and flow rate per well assumed (120 kg/s) are for a 5000 ft long lateral well and not a 7500 ft long lateral well.

[softwareengineerprogrammer]

I think we have to put the lateral length back to 4700 (or 5000) ft as the drilling cost currently assumed ($~3.8M/well) and flow rate per well assumed (120 kg/s) are for a 5000 ft long lateral well and not a 7500 ft long lateral well.

@kfbeckers Good catch, reverted back to 4700.