Add default values when there are no consumption and therefore no emissions can be calculated

co2_emission/co2_emission.py

@@ -22,6 +22,8 @@ class Co2Emission:
                           cte.RENEWABLE: 0}
     self._emissions_factor = emissions_factor
     self._building = building
+    self._year = [0]
+    self._month = [0 for _ in range(12)]
 
   @property
   def building(self) -> Building:
@@ -63,11 +65,23 @@ class Co2Emission:
       values = [v * emission_factor for v in self._building.lighting_electrical_demand[time_period]]
       results_by_time_period[time_period] = values
     results[cte.LIGHTING] = results_by_time_period
-
     results_by_time_period = {}
     for time_period in self._building.appliances_electrical_demand:
       values = [v * emission_factor for v in self._building.appliances_electrical_demand[time_period]]
       results_by_time_period[time_period] = values
     results[cte.APPLIANCES] = results_by_time_period
 
+    if cte.HEATING not in results:
+      results[cte.HEATING] = {cte.YEAR: self._year, cte.MONTH: self._month}
+    if cte.COOLING not in results:
+      results[cte.COOLING] = {cte.YEAR: self._year, cte.MONTH: self._month}
+    if cte.ELECTRICITY not in results:
+      results[cte.ELECTRICITY] = {cte.YEAR: self._year, cte.MONTH: self._month}
+    if cte.LIGHTING not in results:
+      results[cte.LIGHTING] = {cte.YEAR: self._year, cte.MONTH: self._month}
+    if cte.APPLIANCES not in results:
+      results[cte.APPLIANCES] = {cte.YEAR: self._year, cte.MONTH: self._month}
+    if cte.DOMESTIC_HOT_WATER not in results:
+      results[cte.DOMESTIC_HOT_WATER] = {cte.YEAR: self._year, cte.MONTH: self._month}
+
     return results

tests/unit_tests.py

@@ -62,6 +62,7 @@ class UnitTests(unittest.TestCase):
     for building in self.init.city.buildings:
       result = Co2Emission(building).operational_co2
       self.assertIsNotNone(result)
+      print(result)
 
   def tearDown(self):
     files = glob.glob('output/[!.]*')