diff --git a/src/operation/initial_conditions_update_in_memory_store.jl b/src/operation/initial_conditions_update_in_memory_store.jl
index 7c7793050..48d56e9af 100644
--- a/src/operation/initial_conditions_update_in_memory_store.jl
+++ b/src/operation/initial_conditions_update_in_memory_store.jl
@@ -2,12 +2,15 @@
 ################## ic updates from store for emulation problems simulation #################
 
 function update_initial_conditions!(
-    ics::Vector{T},
+    ics::Vector{
+        Union{
+            InitialCondition{InitialTimeDurationOn, Nothing},
+            InitialCondition{InitialTimeDurationOn, JuMP.VariableRef},
+        },
+    },
     store::EmulationModelStore,
     ::Dates.Millisecond,
-) where {
-    T <: InitialCondition{InitialTimeDurationOn, S},
-} where {S <: Union{Float64, JuMP.VariableRef}}
+)
     for ic in ics
         var_val = get_value(store, TimeDurationOn(), get_component_type(ic))
         set_ic_quantity!(ic, get_last_recorded_value(var_val)[get_component_name(ic)])
@@ -16,12 +19,15 @@ function update_initial_conditions!(
 end
 
 function update_initial_conditions!(
-    ics::Vector{T},
+    ics::Vector{
+        Union{
+            InitialCondition{InitialTimeDurationOff, Nothing},
+            InitialCondition{InitialTimeDurationOff, JuMP.VariableRef},
+        },
+    },
     store::EmulationModelStore,
     ::Dates.Millisecond,
-) where {
-    T <: InitialCondition{InitialTimeDurationOff, S},
-} where {S <: Union{Float64, JuMP.VariableRef}}
+)
     for ic in ics
         var_val = get_value(store, TimeDurationOff(), get_component_type(ic))
         set_ic_quantity!(ic, get_last_recorded_value(var_val)[get_component_name(ic)])
@@ -30,12 +36,15 @@ function update_initial_conditions!(
 end
 
 function update_initial_conditions!(
-    ics::Vector{T},
+    ics::Vector{
+        Union{
+            InitialCondition{DevicePower, Nothing},
+            InitialCondition{DevicePower, JuMP.VariableRef},
+        },
+    },
     store::EmulationModelStore,
     ::Dates.Millisecond,
-) where {
-    T <: InitialCondition{DevicePower, S},
-} where {S <: Union{Float64, JuMP.VariableRef}}
+)
     for ic in ics
         var_val = get_value(store, ActivePowerVariable(), get_component_type(ic))
         set_ic_quantity!(ic, get_last_recorded_value(var_val)[get_component_name(ic)])
@@ -44,12 +53,15 @@ function update_initial_conditions!(
 end
 
 function update_initial_conditions!(
-    ics::Vector{T},
+    ics::Vector{
+        Union{
+            InitialCondition{DeviceStatus, Nothing},
+            InitialCondition{DeviceStatus, JuMP.VariableRef},
+        },
+    },
     store::EmulationModelStore,
     ::Dates.Millisecond,
-) where {
-    T <: InitialCondition{DeviceStatus, S},
-} where {S <: Union{Float64, JuMP.VariableRef}}
+)
     for ic in ics
         var_val = get_value(store, OnVariable(), get_component_type(ic))
         set_ic_quantity!(ic, get_last_recorded_value(var_val)[get_component_name(ic)])
@@ -58,12 +70,15 @@ function update_initial_conditions!(
 end
 
 function update_initial_conditions!(
-    ics::Vector{T},
+    ics::Vector{
+        Union{
+            InitialCondition{DeviceAboveMinPower, Nothing},
+            InitialCondition{DeviceAboveMinPower, JuMP.VariableRef},
+        },
+    },
     store::EmulationModelStore,
     ::Dates.Millisecond,
-) where {
-    T <: InitialCondition{DeviceAboveMinPower, S},
-} where {S <: Union{Float64, JuMP.VariableRef}}
+)
     for ic in ics
         var_val =
             get_value(store, PowerAboveMinimumVariable(), get_component_type(ic))
@@ -72,6 +87,7 @@ function update_initial_conditions!(
     return
 end
 
+#= Unused without the AGC model enabled
 function update_initial_conditions!(
     ics::Vector{T},
     store::EmulationModelStore,
@@ -85,14 +101,18 @@ function update_initial_conditions!(
     end
     return
 end
+=#
 
 function update_initial_conditions!(
-    ics::Vector{T},
+    ics::Vector{
+        Union{
+            InitialCondition{InitialEnergyLevel, Nothing},
+            InitialCondition{InitialEnergyLevel, JuMP.VariableRef},
+        },
+    },
     store::EmulationModelStore,
     ::Dates.Millisecond,
-) where {
-    T <: InitialCondition{InitialEnergyLevel, S},
-} where {S <: Union{Float64, JuMP.VariableRef}}
+)
     for ic in ics
         var_val = get_value(store, EnergyVariable(), get_component_type(ic))
         set_ic_quantity!(ic, get_last_recorded_value(var_val)[get_component_name(ic)])