Update/synchronize Fervo_Project_Cape-4 Inflation Rate During Construction documentation

Author: softwareengineerprogrammer

docs/Fervo_Project_Cape-4.md

@@ -54,7 +54,7 @@ in source code for the full set of inputs.
 | Fraction of Investment in Bonds (percent debt vs. equity) | 60%                                                                                                                   | Approximate remaining percentage of CAPEX with $1 billion sponsor equity per Matson, 2024. Note that this source says that Fervo ultimately wants to target "15% sponsor equity, 15% bridge loan, and 70% construction to term loans", but this case study does not attempt to model that capital structure.                                                             |
 | Exploration Capital Cost                                  | $30M                                                                                                                  | Estimate significantly higher exploration costs than default correlation in consideration of potential risks associated with second/third/fourth-of-a-kind EGS projects                                                                                                                                                                                                  |
 | Investment Tax Credit Rate (ITC)                          | 30%                                                                                                                   | Same as 400 MWe case study (Fervo_Project_Cape-3)                                                                                                                                                                                                                                                                                                                        |
-| Inflation Rate During Construction                        | 4.769%                                                                                                                | Yields 15% indirect capital cost over 3-year construction period                                                                                                                                                                                                                                                                                                         |
+| Inflation Rate During Construction                        | 15%                                                                                                                   | Models a higher annual inflation rate (4.769%) over the 3-year construction period as a hedge against short-term inflation volatility.                                                                                                                                                                                                                                   |
 
 ### Technical & Engineering Parameters
 

tests/examples/Fervo_Project_Cape-4.txt

@@ -17,7 +17,7 @@ Fraction of Investment in Bonds, .6, -- Based on fraction of CAPEX with $1 billi
 Inflated Bond Interest Rate, .056
 
 Inflation Rate, .023, -- US inflation as of April 2025
-Inflation Rate During Construction, 0.15, -- Corresponds to a higher inflation rate (4.769%) over the construction period to hedge against short-term inflation volatility.
+Inflation Rate During Construction, 0.15, -- Models a higher annual inflation rate (4.769%) over the 3-year construction period as a hedge against short-term inflation volatility.
 Construction Years, 3, -- Calibrated to a 2-6 year construction time for a 1 GW plant (Yusifov & Enriquez, 2025)