diff --git a/changelog.md b/changelog.md
index 70cb86e..c3fa4cd 100644
--- a/changelog.md
+++ b/changelog.md
@@ -4,7 +4,11 @@
 * None.
 
 ### New Features
-* None.
+* Update `ModelConfig` to contain four optional list of values which makes up the default load profile for hosting capacity model generation.
+  * `default_load_watts` Note: expects same size list of values as `default_load_var` 
+  * `default_gen_watts` Note: expects same size list of values as `default_gen_var`
+  * `default_load_var`
+  * `default_gen_var`
 
 ### Enhancements
 * None.
diff --git a/src/zepben/eas/client/eas_client.py b/src/zepben/eas/client/eas_client.py
index 003b0e7..d0bbabf 100644
--- a/src/zepben/eas/client/eas_client.py
+++ b/src/zepben/eas/client/eas_client.py
@@ -258,6 +258,10 @@ async def async_run_hosting_capacity_work_package(self, work_package: WorkPackag
                                     "energyConsumerMeterGroup": work_package.generator_config.model.meter_placement_config.energy_consumer_meter_group
                                 } if work_package.generator_config.model.meter_placement_config is not None else None,
                                 "seed": work_package.generator_config.model.seed,
+                                "defaultLoadWatts" : work_package.generator_config.model.default_load_watts,
+                                "defaultGenWatts" : work_package.generator_config.model.default_gen_watts,
+                                "defaultLoadVar" : work_package.generator_config.model.default_load_var,
+                                "defaultGenVar" : work_package.generator_config.model.default_gen_var
                             } if work_package.generator_config.model is not None else None,
                             "solve": {
                                 "normVMinPu": work_package.generator_config.solve.norm_vmin_pu,
diff --git a/src/zepben/eas/client/work_package.py b/src/zepben/eas/client/work_package.py
index 10a04c1..a6970d8 100644
--- a/src/zepben/eas/client/work_package.py
+++ b/src/zepben/eas/client/work_package.py
@@ -135,6 +135,10 @@ class ModelConfig:
     load_interval_length_hours: Optional[float] = None
     meter_placement_config: Optional[MeterPlacementConfig] = None
     seed: Optional[int] = None
+    default_load_watts: Optional[List[float]] = None
+    default_gen_watts: Optional[List[float]] = None
+    default_load_var: Optional[List[float]] = None
+    default_gen_var: Optional[List[float]] = None
 
 
 class SolveMode(Enum):