handling various fuel types

backend/Property.py

@@ -1207,6 +1207,12 @@ class Property:
 
         self.heating_energy_source = self.heating_energy_source[0]
 
+        if self.heating_energy_source == "Varied (Community Scheme)":
+            if self.main_fuel["fuel_type"] == "mains gas":
+                self.heating_energy_source = "Natural Gas (Community Scheme)"
+            else:
+                raise Exception("Implement me")
+
         if self.hotwater["heater_type"] is not None:
             self.hot_water_energy_source = heater_type_to_fuel[self.hotwater["heater_type"]]
         else:

backend/ml_models/AnnualBillSavings.py

@@ -263,7 +263,7 @@ class AnnualBillSavings:
         if fuel == "Electricity":
             return (kwh / cop) * cls.ELECTRICITY_PRICE_CAP
 
-        if fuel == "Natural Gas":
+        if fuel in ["Natural Gas", "Natural Gas (Community Scheme)"]:
             return (kwh / cop) * cls.GAS_PRICE_CAP
 
         if fuel == "LPG":

etl/bill_savings/data_collection.py

@@ -134,7 +134,7 @@ def app():
     for i, directory in tqdm(enumerate(epc_directories), total=len(epc_directories)):
         try:
             # Skip the first 50
-            if i < 200:
+            if i < 256:
                 continue
 
             data = pd.read_csv(directory / "certificates.csv", low_memory=False)

recommendations/Recommendations.py

@@ -32,6 +32,12 @@ DESCRIPTIONS_TO_FUEL_TYPES = {
     "Room heaters, mains gas": {"fuel": 'Natural Gas', "cop": 0.9},
     "Warm air, mains gas": {"fuel": 'Natural Gas', "cop": 0.9},
     "Boiler, mains gas": {"fuel": 'Natural Gas', "cop": 0.9},
+    "Gas multipoint": {"fuel": "Natural Gas", "cop": 0.9},
+    "Warm air, Electricaire": {"fuel": "Electricity", "cop": 1},
+    "Gas boiler/circulator": {"fuel": "Natural Gas", "cop": 0.9},
+    "Boiler and underfloor heating, mains gas": {"fuel": "Natural Gas", "cop": 0.9},
+    "No system present: electric heaters assumed": {"fuel": "Electricity", "cop": 1},
+    "Electric instantaneous at point of use": {"fuel": "Electricity", "cop": 1},
 }
 STARTING_DUMMY_ID_VALUE = -9999
 
@@ -517,7 +523,19 @@ class Recommendations:
         return property_recommendations, impact_summary
 
     @staticmethod
-    def map_descriptions_to_fuel(heating_description, hotwater_description):
+    def map_descriptions_to_fuel(heating_description, hotwater_description, main_fuel_description):
+
+        # Handle the case of community schemes
+        if (heating_description == "Community scheme") or (hotwater_description == "Community scheme"):
+            if main_fuel_description == "mains gas (community)":
+                return {
+                    "heating_fuel_type": "Natural Gas (Community Scheme)",
+                    "hotwater_fuel_type": "Natural Gas (Community Scheme)",
+                    "heating_cop": 1,
+                    "hotwater_cop": 1
+                }
+            raise NotImplementedError("Handle this case")
+
         mapped = DESCRIPTIONS_TO_FUEL_TYPES[heating_description]
         heating_fuel = mapped["fuel"]
 
@@ -529,7 +547,9 @@ class Recommendations:
                 "heating_cop": mapped["cop"], "hotwater_cop": mapped["cop"]
             }
 
-        if hotwater_description == "From main system, plus solar":
+        if hotwater_description in [
+            "From main system, plus solar", "From main system, plus solar, no cylinder thermostat"
+        ]:
             # The fuel is
             return {
                 "heating_fuel_type": heating_fuel, "hotwater_fuel_type": heating_fuel + " + Solar Thermal",
@@ -623,7 +643,9 @@ class Recommendations:
         fuel_mapping = pd.DataFrame([
             {
                 "id": epc["id"],
-                **cls.map_descriptions_to_fuel(epc["mainheat-description"], epc["hotwater-description"])
+                **cls.map_descriptions_to_fuel(
+                    epc["mainheat-description"], epc["hotwater-description"], epc["main-fuel"]
+                )
             } for epc in property_instance.updated_simulation_epcs
         ])
 
@@ -635,7 +657,8 @@ class Recommendations:
                             "id": STARTING_DUMMY_ID_VALUE,
                             **cls.map_descriptions_to_fuel(
                                 property_instance.data["mainheat-description"],
-                                property_instance.data["hotwater-description"]
+                                property_instance.data["hotwater-description"],
+                                property_instance.data["main-fuel"]
                             )
                         }
                     ]
@@ -710,11 +733,15 @@ class Recommendations:
                 rec["energy_cost_savings"] = energy_cost_savings
 
         # Finally, we set the current energy bill
+        # For a community scheme, there is a standing charge but it's based on the operational cost of the network
+        # and therefore is likely different to the typical standing charge. This will be a cost typically defined
+        # by the network operator and often a building, whose residents are on a heat network, where the building
+        # operator will purchase energy from the network and re-sell it to the residents
         starting_figures = kwh_impact_table[kwh_impact_table["id"] == STARTING_DUMMY_ID_VALUE].squeeze()
         gas_standing_charge = 0
         if (
-            (starting_figures["heating_fuel_type"] == "Natural Gas") or
-            (starting_figures["hotwater_fuel_type"] == "Natural Gas")
+            (starting_figures["heating_fuel_type"] in ["Natural Gas", "Natural Gas (Community Scheme)"]) or
+            (starting_figures["hotwater_fuel_type"] == ["Natural Gas", "Natural Gas (Community Scheme)"])
         ):
             gas_standing_charge = AnnualBillSavings.DAILY_STANDARD_CHARGE_GAS * 365