diff --git a/src/descriptors/power_system_structs.json b/src/descriptors/power_system_structs.json
index a63d4e8b83..ec2e777dad 100644
--- a/src/descriptors/power_system_structs.json
+++ b/src/descriptors/power_system_structs.json
@@ -16615,6 +16615,13 @@
                     "data_type": "Float64",
                     "default": "0.0"
                 },
+                {
+                    "name": "base_power",
+                    "comment": "Base Power in MVA",
+                    "null_value": 0,
+                    "data_type": "Float64",
+                    "default": "100.0"
+                },
                 {
                     "name": "dynamic_injector",
                     "data_type": "Union{Nothing, DynamicInjection}",
diff --git a/src/models/generated/Source.jl b/src/models/generated/Source.jl
index 1a5014cf22..a6152896e4 100644
--- a/src/models/generated/Source.jl
+++ b/src/models/generated/Source.jl
@@ -15,6 +15,7 @@ This file is auto-generated. Do not edit.
         X_th::Float64
         internal_voltage::Float64
         internal_angle::Float64
+        base_power::Float64
         dynamic_injector::Union{Nothing, DynamicInjection}
         services::Vector{Service}
         ext::Dict{String, Any}
@@ -35,6 +36,7 @@ Commonly used in dynamics simulations to represent a very large machine on a sin
 - `X_th::Float64`: Source Thevenin reactance, validation range: `(0, nothing)`
 - `internal_voltage::Float64`: (default: `1.0`) Internal Voltage (pu), validation range: `(0, nothing)`
 - `internal_angle::Float64`: (default: `0.0`) Internal Angle
+- `base_power::Float64`: (default: `100.0`) Base Power in MVA
 - `dynamic_injector::Union{Nothing, DynamicInjection}`: (default: `nothing`) corresponding dynamic injection device
 - `services::Vector{Service}`: (default: `Device[]`) Services that this device contributes to
 - `ext::Dict{String, Any}`: (default: `Dict{String, Any}()`) An [*ext*ra dictionary](@ref additional_fields) for users to add metadata that are not used in simulation, such as latitude and longitude.
@@ -59,6 +61,8 @@ mutable struct Source <: StaticInjection
     internal_voltage::Float64
     "Internal Angle"
     internal_angle::Float64
+    "Base Power in MVA"
+    base_power::Float64
     "corresponding dynamic injection device"
     dynamic_injector::Union{Nothing, DynamicInjection}
     "Services that this device contributes to"
@@ -69,12 +73,12 @@ mutable struct Source <: StaticInjection
     internal::InfrastructureSystemsInternal
 end
 
-function Source(name, available, bus, active_power, reactive_power, R_th, X_th, internal_voltage=1.0, internal_angle=0.0, dynamic_injector=nothing, services=Device[], ext=Dict{String, Any}(), )
-    Source(name, available, bus, active_power, reactive_power, R_th, X_th, internal_voltage, internal_angle, dynamic_injector, services, ext, InfrastructureSystemsInternal(), )
+function Source(name, available, bus, active_power, reactive_power, R_th, X_th, internal_voltage=1.0, internal_angle=0.0, base_power=100.0, dynamic_injector=nothing, services=Device[], ext=Dict{String, Any}(), )
+    Source(name, available, bus, active_power, reactive_power, R_th, X_th, internal_voltage, internal_angle, base_power, dynamic_injector, services, ext, InfrastructureSystemsInternal(), )
 end
 
-function Source(; name, available, bus, active_power, reactive_power, R_th, X_th, internal_voltage=1.0, internal_angle=0.0, dynamic_injector=nothing, services=Device[], ext=Dict{String, Any}(), internal=InfrastructureSystemsInternal(), )
-    Source(name, available, bus, active_power, reactive_power, R_th, X_th, internal_voltage, internal_angle, dynamic_injector, services, ext, internal, )
+function Source(; name, available, bus, active_power, reactive_power, R_th, X_th, internal_voltage=1.0, internal_angle=0.0, base_power=100.0, dynamic_injector=nothing, services=Device[], ext=Dict{String, Any}(), internal=InfrastructureSystemsInternal(), )
+    Source(name, available, bus, active_power, reactive_power, R_th, X_th, internal_voltage, internal_angle, base_power, dynamic_injector, services, ext, internal, )
 end
 
 # Constructor for demo purposes; non-functional.
@@ -89,6 +93,7 @@ function Source(::Nothing)
         X_th=0,
         internal_voltage=0,
         internal_angle=0,
+        base_power=0,
         dynamic_injector=nothing,
         services=Device[],
         ext=Dict{String, Any}(),
@@ -113,6 +118,8 @@ get_X_th(value::Source) = value.X_th
 get_internal_voltage(value::Source) = value.internal_voltage
 """Get [`Source`](@ref) `internal_angle`."""
 get_internal_angle(value::Source) = value.internal_angle
+"""Get [`Source`](@ref) `base_power`."""
+get_base_power(value::Source) = value.base_power
 """Get [`Source`](@ref) `dynamic_injector`."""
 get_dynamic_injector(value::Source) = value.dynamic_injector
 """Get [`Source`](@ref) `services`."""
@@ -138,6 +145,8 @@ set_X_th!(value::Source, val) = value.X_th = val
 set_internal_voltage!(value::Source, val) = value.internal_voltage = val
 """Set [`Source`](@ref) `internal_angle`."""
 set_internal_angle!(value::Source, val) = value.internal_angle = val
+"""Set [`Source`](@ref) `base_power`."""
+set_base_power!(value::Source, val) = value.base_power = val
 """Set [`Source`](@ref) `services`."""
 set_services!(value::Source, val) = value.services = val
 """Set [`Source`](@ref) `ext`."""