diff --git a/julia_src/Manifest.toml b/julia_src/Manifest.toml
index b0930d9ab..ad678af5d 100644
--- a/julia_src/Manifest.toml
+++ b/julia_src/Manifest.toml
@@ -948,9 +948,11 @@ version = "1.11.0"
 
 [[deps.REopt]]
 deps = ["ArchGDAL", "CSV", "CoolProp", "DataFrames", "Dates", "DelimitedFiles", "HTTP", "JLD", "JSON", "JuMP", "LinDistFlow", "LinearAlgebra", "Logging", "MathOptInterface", "Requires", "Roots", "Statistics", "TestEnv"]
-git-tree-sha1 = "00bb39c8f932a3320960f01adc139229c24e12b7"
+git-tree-sha1 = "dad8d89841fe74d3027414359a883b991258d934"
+repo-rev = "chp-expand"
+repo-url = "https://github.com/NREL/REopt.jl.git"
 uuid = "d36ad4e8-d74a-4f7a-ace1-eaea049febf6"
-version = "0.56.2"
+version = "0.56.4"
 
 [[deps.Random]]
 deps = ["SHA"]
diff --git a/julia_src/http.jl b/julia_src/http.jl
index 10228ea09..9a5458996 100644
--- a/julia_src/http.jl
+++ b/julia_src/http.jl
@@ -126,7 +126,7 @@ function reopt(req::HTTP.Request)
                     :size_class, :electric_efficiency_half_load, :thermal_efficiency_half_load,
                     :macrs_option_years, :macrs_bonus_fraction, :federal_itc_fraction
                 ]
-                chp_dict = Dict(key=>getfield(model_inputs.s.chp, key) for key in inputs_with_defaults_from_julia_chp)
+                chp_dict = Dict(key=>getfield(model_inputs.s.chps[1], key) for key in inputs_with_defaults_from_julia_chp)
             else
                 chp_dict = Dict()
             end
diff --git a/reoptjl/migrations/0114_chpoutputs_electric_curtailed_series_kw.py b/reoptjl/migrations/0114_chpoutputs_electric_curtailed_series_kw.py
new file mode 100644
index 000000000..3269fcd6e
--- /dev/null
+++ b/reoptjl/migrations/0114_chpoutputs_electric_curtailed_series_kw.py
@@ -0,0 +1,19 @@
+# Generated by Django 4.2.26 on 2026-02-03 16:40
+
+import django.contrib.postgres.fields
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('reoptjl', '0113_merge_20251209_2338'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='chpoutputs',
+            name='electric_curtailed_series_kw',
+            field=django.contrib.postgres.fields.ArrayField(base_field=models.FloatField(blank=True, null=True), blank=True, default=list, help_text='Electric power curtailed time-series array [kW]', size=None),
+        ),
+    ]
diff --git a/reoptjl/models.py b/reoptjl/models.py
index 17a9560b3..498b8459f 100644
--- a/reoptjl/models.py
+++ b/reoptjl/models.py
@@ -4939,6 +4939,13 @@ class CHPOutputs(BaseModel, models.Model):
         default=list, blank=True,
         help_text="Electric power serving the electric load time-series array [kW]"
     )
+    electric_curtailed_series_kw = ArrayField(
+        models.FloatField(
+            null=True, blank=True
+        ),
+        default=list, blank=True,
+        help_text="Electric power curtailed time-series array [kW]"
+    )
     thermal_to_storage_series_mmbtu_per_hour = ArrayField(
         models.FloatField(
             null=True, blank=True