ReEDS-Model · kodiobika · Aug 18, 2026 · Aug 4, 2026 · Aug 4, 2026 · Aug 4, 2026
diff --git a/exogenous_canadian_trade/Canadian_import_export_formatter.py b/exogenous_canadian_trade/Canadian_import_export_formatter.py
@@ -11,7 +11,7 @@
 Canada_Projection_FN = 'Electricity_Interchange.xlsx' # From https://apps.cer-rec.gc.ca/ftrppndc/dflt.aspx?GoCTemplateCulture=en-CA
 
 # Ensure the headers for the provinces match the excel file
-Province_header_dict = {'Newfoundland and Labrador':6,
+Province_header_dict = {'Newfoundland and Labrador':15,
                         'Prince Edward Island':24,
                         'Nova Scotia':33,
                         'New Brunswick':42,
@@ -70,7 +70,7 @@
 Import_Season_Fractions.sort_values(by = 'order',inplace = True)
 Import_Season_Fractions.drop('order',axis = 1, inplace = True)
 Import_Season_Fractions.columns = ['*szn','frac']
-Import_Season_Fractions.round(4).to_csv(os.path.join(Output_folder, 'can_imports_quarter_frac.csv'), index = False)
+Import_Season_Fractions.round(5).to_csv(os.path.join(Output_folder, 'can_imports_quarter_frac.csv'), index = False)
 
 # generating the Exports season fractions from available years
 Export_Season_Fractions = pd.DataFrame(pd.pivot_table(Historical, values = ['Export_Month_Fraction'], index = 'Season',  aggfunc = 'sum'))
@@ -81,7 +81,7 @@
 Export_Season_Fractions.sort_values(by = 'order',inplace = True)
 Export_Season_Fractions.drop('order',axis = 1, inplace = True)
 Export_Season_Fractions.columns = ['*szn','frac']
-Export_Season_Fractions.round(4).to_csv(os.path.join(Output_folder, 'can_exports_szn_frac.csv'), index = False)
+Export_Season_Fractions.round(5).to_csv(os.path.join(Output_folder, 'can_exports_szn_frac.csv'), index = False)
 
 
 ########################################
@@ -151,4 +151,4 @@
 
 Imports.round(1).to_csv(os.path.join(Output_folder, 'can_imports.csv'))
 
-print(f"Run complete. See outputs folder for outputs which are inputs to ReEDS.")
+print(f"Run complete. See the '{Output_folder}' directory for outputs.")
diff --git a/exogenous_canadian_trade/README.md b/exogenous_canadian_trade/README.md
@@ -24,6 +24,7 @@ Option 2 has been deprecated in the current version of ReEDS (2024.4.0), so the
 To update the province-to-county map:
 - Download the "Border Crossings - Electric Transmission Line" dataset from the EIA: https://www.eia.gov/trilateral/#!/maps. 
 - Move and rename the file to "data/raw_inputs/EIA_trilateral_lines.csv".
+- If there are known lines that are not included in the EIA dataset, add them to "data/raw_inputs/manual_usa_can_lines.csv".
 - Run process_eia_lines.py to create "data/EIA_usa_can_lines.csv".
 
 - Download the "Sheet 1" Excel file from the Canadian government's "International Power Lines" dashboard: https://www.cer-rec.gc.ca/en/data-analysis/facilities-we-regulate/international-power-lines-dashboard/.
@@ -37,3 +38,5 @@ To update the province-to-county map:
 -- In cases where the U.S. state listed in the datasets do not match, we use EIA's provided location, as it has county-level information.
 
 - Run create_province_to_county_map.py in the "Exogenous_Canadian_Trade" directory.
+
+Note: The entry of "data/raw_inputs/CER_usa_can_lines.xlsx" corresponding to the CHPE Quebec-New York City line (https://chpexpress.com/construction/), which has original regulatory instrument ID "EP-306", was updated manually to change its status from "Approved" to "Operating" because the line's completion was not reflected in the CER dataset at the time of writing (August 2026).
diff --git a/exogenous_canadian_trade/create_province_to_county_map.py b/exogenous_canadian_trade/create_province_to_county_map.py
@@ -5,6 +5,11 @@
 
 import pandas as pd
 import json
+import sys
+
+reeds_path = '' # User should specify path to ReEDS repository here
+sys.path.append(reeds_path)
+import reeds
 
 
 def get_line_data(line_id_certificate_map):    
@@ -58,24 +63,20 @@ def main():
     )
     county_capacities = county_capacities.loc[county_capacities.Capacity > 0].copy()
 
-    # Rename counties to match ReEDS counties file and merge to get corresponding pFIPS
-    reeds_counties = pd.read_excel(
-        '../Region_Disaggregation/processing_scripts/county_reeds_corrected0310.xlsx',
-        header=0,
-        usecols=['NAME','STATE_NAME','pFIPS']
-    )
+    # Rename counties to match ReEDS counties file and merge to get corresponding FIPS code
+    reeds_counties = reeds.io.get_countymap()[['NAME', 'STATE', 'rb']]
     county_capacities['County'] = county_capacities['County'].str.replace('Saint', 'St.')
     assert (
         len(reeds_counties.loc[reeds_counties.NAME.isin(county_capacities.County)].NAME.unique())
         == len(county_capacities.County.sort_values().unique())
     )
     county_capacities = (
         county_capacities.merge(
-            reeds_counties[['NAME', 'STATE_NAME', 'pFIPS']],
+            reeds_counties,
             left_on=['County', 'State'],
-            right_on=['NAME', 'STATE_NAME']
+            right_on=['NAME', 'STATE']
         )
-        [['Province', 'pFIPS', 'Capacity']]
+        [['Province', 'rb', 'Capacity']]
     )
 
     # Calculate proportion of each province's transmission capacity going to each county
@@ -87,7 +88,7 @@ def main():
     province_to_county_map = pd.pivot_table(
         county_capacities,
         index='Province',
-        columns='pFIPS',
+        columns='rb',
         values='proportion_of_province_capacity'
     )
     assert(all(province_to_county_map.sum(axis=1) == 1))

diff --git a/exogenous_canadian_trade/data/EIA_usa_can_lines.csv b/exogenous_canadian_trade/data/EIA_usa_can_lines.csv
@@ -30,3 +30,4 @@ Ontario,Minnesota,Hydro One Networks Inc.,Fort Frances IPL_115,Fort Frances,Inte
 Ontario,Michigan,Hydro One Networks Inc.,Sarnia Scott-Bunce Creek B3N IPL_230,FroomField,Marysville,Saint Clair,230.0,1,FroomField-Marysville_230
 Ontario,Michigan,Hydro One Networks Inc.,Lambton-St. Clair L51D IPL_235,Courtright,St. Claire,Saint Clair,235.0,1,Courtright-St. Claire_235
 Ontario,Michigan,Hydro One Networks Inc.,Lambton-St. Clair L4D IPL_345,Courtright,St. Claire,Saint Clair,345.0,1,Courtright-St. Claire_345
+Quebec,New York,Quebec Hydro - Hydro-Quebec,CHPE_400,Hertel,Astoria Annex,Queens,400.0,1,Hertel-Astoria Annex_400
diff --git a/exogenous_canadian_trade/data/line_id_certificate_map.json b/exogenous_canadian_trade/data/line_id_certificate_map.json
@@ -96,5 +96,8 @@
     ],
     "Courtright-St. Claire_345": [
         "EC-III-6"
+    ],
+    "Hertel-Astoria Annex_400": [
+        "EP-306"
     ]
 }
diff --git a/exogenous_canadian_trade/data/province_to_county_map.csv b/exogenous_canadian_trade/data/province_to_county_map.csv
@@ -1,8 +1,8 @@
-Province,p23003,p26147,p26163,p27071,p27135,p30035,p36063,p36089,p38023,p38079,p50009,p50011,p50019,p53051,p53073
-Alberta,,,,,,1.0,,,,,,,,,
-British Columbia,,,,,,,,,,,,,,0.24324324324324326,0.7567567567567568
-Manitoba,,,,,0.5694294940796556,,,,,0.43057050592034446,,,,,
-New Brunswick,1.0,,,,,,,,,,,,,,
-Ontario,,0.363659401926001,0.14445007602635582,0.03801317790167258,,,0.4538773441459706,,,,,,,,
-Quebec,,,,,,,,0.7092198581560284,,,0.19574468085106383,0.06382978723404255,0.031205673758865248,,
-Saskatchewan,,,,,,,,,1.0,,,,,,
+Province,p23003,p26147,p26163,p27071,p27135,p30035,p36063,p36081,p36089,p38023,p38079,p50009,p50011,p50019,p53051,p53073
+Alberta,,,,,,1.0,,,,,,,,,,
+British Columbia,,,,,,,,,,,,,,,0.17647058823529413,0.8235294117647058
+Manitoba,,,,,0.5694294940796556,,,,,,0.43057050592034446,,,,,
+New Brunswick,1.0,,,,,,,,,,,,,,,
+Ontario,,0.37654159013382316,0.11414326948307531,0.039359748097612175,,,0.4699553922854894,,,,,,,,,
+Quebec,,,,,,,,0.2617801047120419,0.5235602094240838,,,0.14450261780104712,0.04712041884816754,0.023036649214659685,,
+Saskatchewan,,,,,,,,,,1.0,,,,,,
diff --git a/exogenous_canadian_trade/data/raw_inputs/CER_usa_can_lines.xlsx b/exogenous_canadian_trade/data/raw_inputs/CER_usa_can_lines.xlsx
diff --git a/exogenous_canadian_trade/data/raw_inputs/Electricity_Interchange.xlsx b/exogenous_canadian_trade/data/raw_inputs/Electricity_Interchange.xlsx
diff --git a/...de/data/raw_inputs/electricity-trade-summary-resume-echanges-commerciaux-electricite.xlsx b/...de/data/raw_inputs/electricity-trade-summary-resume-echanges-commerciaux-electricite.xlsx
diff --git a/exogenous_canadian_trade/data/raw_inputs/manual_usa_can_lines.csv b/exogenous_canadian_trade/data/raw_inputs/manual_usa_can_lines.csv
@@ -0,0 +1,2 @@
+Origin,Destination,Company,LineName,CanadianSite,AmericanSite,County,voltage,num_lines,line_ID
+Quebec,New York,Quebec Hydro - Hydro-Quebec,CHPE_400,Hertel,Astoria Annex,Queens,400,1,Hertel-Astoria Annex_400
diff --git a/exogenous_canadian_trade/process_eia_lines.py b/exogenous_canadian_trade/process_eia_lines.py
@@ -102,6 +102,10 @@ def main():
     )
     df_eia['LineName'] = df_eia.LineName + '_' + df_eia.voltage.astype(int).astype(str)
 
+    # Append manually specified lines that aren't included in the EIA dataset
+    df_manual = pd.read_csv("data/raw_inputs/manual_usa_can_lines.csv")
+    df_eia = pd.concat([df_eia, df_manual], ignore_index=True)
+
     out_fpath = "data/EIA_usa_can_lines.csv"
     df_eia.to_csv(out_fpath, index=False)
     print(f"Run complete. See {out_fpath} for outputs.")
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,2 @@
		Origin,Destination,Company,LineName,CanadianSite,AmericanSite,County,voltage,num_lines,line_ID
		Quebec,New York,Quebec Hydro - Hydro-Quebec,CHPE_400,Hertel,Astoria Annex,Queens,400,1,Hertel-Astoria Annex_400