SAM example descriptions - clarify BICYCLE comparison context

Author: softwareengineerprogrammer

README.rst

@@ -466,7 +466,7 @@ Example-specific web interface deeplinks are listed in the Link column.
      - `example_SAM-single-owner-PPA.txt <tests/examples/example_SAM-single-owner-PPA.txt>`__
      - `.out <tests/examples/example_SAM-single-owner-PPA.out>`__
      - `link <https://gtp.scientificwebservices.com/geophires?geophires-example-id=example_SAM-single-owner-PPA>`__
-   * - SAM Single Owner PPA: 400 MWe
+   * - SAM Single Owner PPA: 400 MWe BICYCLE Comparison
      - `example_SAM-single-owner-PPA-2.txt <tests/examples/example_SAM-single-owner-PPA-2.txt>`__
      - `.out <tests/examples/example_SAM-single-owner-PPA-2.out>`__
      - `link <https://gtp.scientificwebservices.com/geophires?geophires-example-id=example_SAM-single-owner-PPA-2>`__

tests/examples/example_SAM-single-owner-PPA-2.txt

@@ -1,8 +1,11 @@
-# Example: SAM Single Owner PPA Economic Model
+# Example: SAM Single Owner PPA Economic Model: 400 MWe BICYCLE Comparison
 # This example is adapted from Fervo_Project_Cape-3, allowing for comparison between BICYCLE and SAM economic models.
-# See "SAM Economic Models" in GEOPHIRES documentation for details on how GEOPHIRES parameters and outputs are transformed and passed
-# to the SAM financial model.
-# NREL SAM PPA (Power Purchase Agreement) Financial Model documentation: https://sam.nrel.gov/financial-models/utility-scale-ppa
+# Note that this example produces an unrealistically high IRR of ~60%. This is an artifact of using Fervo_Project_Cape-3's
+# BICYCLE parameters and assumptions as-is with the SAM Economic Model (such as starting electricity rate = $15 cents/kWh).
+# See example_SAM-single-owner-PPA for parameters formulated with more refined assumptions appropriate for the
+# SAM Economic Model.
+# See "SAM Economic Models" in GEOPHIRES documentation: https://nrel.github.io/GEOPHIRES-X/SAM-Economic-Models.html
+
 
 # *** ECONOMIC/FINANCIAL PARAMETERS ***
 # *************************************

tests/examples/example_SAM-single-owner-PPA.txt

@@ -1,4 +1,4 @@
-# Example: SAM Single Owner PPA Economic Model
+# Example: SAM Single Owner PPA Economic Model: 50 MWe
 # This example demonstrates a 50 MWe EGS project with similar engineering parameters to Fervo Cape Station.
 # The SAM Single Owner PPA Economic Model calculates project NPV, after-tax IRR, and cash flow based on
 # electricity production, capital costs, and economic input parameters.