HPRTU measure: carrier's dual fuel RTU option

measures/comstock_sensitivity_reports/measure.rb

@@ -2994,6 +2994,31 @@ def system_type_for(pump)
     runner.registerValue('com_report_unitary_sys_cycling_excess_electricity_heating_pcnt',
                          com_report_unitary_sys_cycling_excess_electricity_heating_pcnt)
 
+    # calculate DX heating load during hybrid heating from EMS output variables
+    # this only gets a value when HPRTU measure is applied in the model
+    # which creates an EMS variable to report this value
+    # this variable is to support the difference between two operating scenarios
+    #  1) simulataneous DX heating and gas coil heating
+    #  2) gas coil heating only and DX compressor locked out
+    # suffix used below is hard-coded in HPRTU measure
+    # timestep of 'Hourly' is also hard-coded in HPRTU measure
+    suffix = "_dx_load_during_hybrid_heating"
+    com_report_hvac_dx_heating_load_during_hybrid_heating_j = 0.0
+    model.getEnergyManagementSystemOutputVariables.each do |ems_var|
+      name = ems_var.name.to_s
+      next unless name.downcase.include?(suffix)
+      ts_opt = sql.timeSeries(ann_env_pd, 'Hourly', name, 'EMS')
+      if ts_opt.is_initialized
+        ts = ts_opt.get
+        values = ts.values
+        annual_j = values.sum * 3600  # Convert from Wh to J (Wh * 3600 s/h)
+        com_report_hvac_dx_heating_load_during_hybrid_heating_j += annual_j
+      else
+        runner.registerError("No time series found for EMS variable #{name} for calculating DX heating load during hybrid heating.")
+      end
+    end
+    runner.registerValue('com_report_hvac_dx_heating_load_during_hybrid_heating_j', com_report_hvac_dx_heating_load_during_hybrid_heating_j)
+
     # Get the outdoor air temp timeseries and calculate heating and cooling degree days
     # Per ISO 15927-6, "Accumulated hourly temperature differences shall be calculated according to 4.4 when hourly data are available. When hourly data are not available, the approximate method given in 4.5, based on the maximum and minimum temperatures each day, may be used."
     # Method 4.4 is used here, summing hour values over/under a threshold and then dividing by 24

measures/comstock_sensitivity_reports/measure.xml

@@ -3,8 +3,8 @@
   <schema_version>3.1</schema_version>
   <name>com_stock_sensitivity_reports</name>
   <uid>aeb81242-de7e-4613-af47-c1faf19d286a</uid>
-  <version_id>0955d5f5-3a15-4c10-9151-5ea649038f6b</version_id>
-  <version_modified>2025-09-17T17:07:23Z</version_modified>
+  <version_id>462e4ec4-a241-4650-9690-6823be753fe5</version_id>
+  <version_modified>2026-01-27T16:45:14Z</version_modified>
   <xml_checksum>A0069B90</xml_checksum>
   <class_name>ComStockSensitivityReports</class_name>
   <display_name>ComStock_Sensitivity_Reports</display_name>
@@ -76,13 +76,13 @@
       <filename>measure.rb</filename>
       <filetype>rb</filetype>
       <usage_type>script</usage_type>
-      <checksum>58DAA5CC</checksum>
+      <checksum>26CFC767</checksum>
     </file>
     <file>
       <filename>Variable List.xlsx</filename>
       <filetype>xlsx</filetype>
       <usage_type>resource</usage_type>
-      <checksum>3B3560C3</checksum>
+      <checksum>D877DBB2</checksum>
     </file>
     <file>
       <filename>8172d17_0000008.osm</filename>
@@ -238,7 +238,7 @@
       <filename>comstock_sensitivity_reports_test.rb</filename>
       <filetype>rb</filetype>
       <usage_type>test</usage_type>
-      <checksum>BA366C89</checksum>
+      <checksum>887C00B2</checksum>
     </file>
     <file>
       <filename>ground_heat_exchanger.osm</filename>

postprocessing/comstockpostproc/resources/comstock_column_definitions.csv

@@ -533,6 +533,7 @@ results.csv,com_stock_sensitivity_reports.com_report_hvac_dx_heating_total_suppl
 results.csv,com_stock_sensitivity_reports.com_report_hvac_dx_heating_total_supplemental_load_electric_j,out.params.dx_heating_total_supplemental_load_electric,TRUE,FALSE,float,j,j,total dx heating equipment supplemental load served by electric
 results.csv,com_stock_sensitivity_reports.com_report_hvac_dx_heating_total_supplemental_load_gas_j,out.params.dx_heating_total_supplemental_load_gas,TRUE,FALSE,float,j,j,total dx heating equipment supplemental load served by gas
 results.csv,com_stock_sensitivity_reports.com_report_hvac_dx_heating_total_supplemental_load_j,out.params.dx_heating_total_supplemental_load,TRUE,FALSE,float,j,j,total dx heating equipment supplemental load served
+results.csv,com_stock_sensitivity_reports.com_report_hvac_dx_heating_load_during_hybrid_heating_j,out.params.dx_heating_load_during_hybrid_heating,TRUE,FALSE,float,j,j,total dx heating load during hybrid heating with gas coil
 results.csv,com_stock_sensitivity_reports.com_report_hvac_economizer_control_type,out.params.economizer_control_type,TRUE,FALSE,string,,,most prevalent economizer control type by total annual airflow
 results.csv,com_stock_sensitivity_reports.com_report_hvac_economizer_high_limit_enthalpy_j_per_kg,out.params.economizer_high_limit_enthalpy,TRUE,FALSE,float,j_per_kg,j_per_kg,"average economizer high limited enthalpy, weighted by total annual airflow"
 results.csv,com_stock_sensitivity_reports.com_report_hvac_economizer_high_limit_temperature_c,out.params.economizer_high_limit_temperature,TRUE,FALSE,float,c,c,"average economizer high limit temperature, weighted by total annual airflow"

resources/measures/upgrade_hvac_add_heat_pump_rtu/README.md

@@ -27,7 +27,7 @@ Specifies if the backup heat fuel type is a gas furnace or electric resistance c
 **Required:** true,
 **Model Dependent:** false
 
-**Choice Display Names** ["match_original_primary_heating_fuel", "electric_resistance_backup"]
+**Choice Display Names** ["match_original_primary_heating_fuel", "electric_resistance_backup", "dual_fuel_gas_furnace_backup"]
 
 
 ### Maximum Performance Oversizing Factor
@@ -85,7 +85,7 @@ Determines performance assumptions. two_speed_standard_eff is a standard efficie
 **Required:** true,
 **Model Dependent:** false
 
-**Choice Display Names** ["two_speed_standard_eff", "two_speed_lab_data", "variable_speed_high_eff", "cchpc_2027_spec"]
+**Choice Display Names** ["two_speed_standard_eff", "two_speed_lab_data", "variable_speed_high_eff", "cchpc_2027_spec", "carrier_48qe_dualfuel"]
 
 
 ### Add Energy Recovery?