Merge pull request #690 from NREL/develop

v3.17.3 Add Wind Power Density Input

Author: Bill-Becker

CHANGELOG.md

@@ -26,6 +26,11 @@ Classify the change according to the following categories:
     ##### Removed
     ### Patches
 
+## v3.17.3
+### Minor Updates
+##### Added
+- Input for `Wind`: `acres_per_kw` which has a default of 0.03; Wind is only constrained by this for sizes greater than 1500 kW.
+
 ## v3.17.2
 ### Minor Updates
 ##### Added

reoptjl/migrations/0112_windinputs_acres_per_kw.py

@@ -0,0 +1,19 @@
+# Generated by Django 4.2.26 on 2025-12-08 23:22
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('reoptjl', '0111_alter_electricloadinputs_monthly_totals_kwh'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='windinputs',
+            name='acres_per_kw',
+            field=models.FloatField(blank=True, default=0.03, help_text='Land area required per kW of wind capacity in acres/kW; only constrained by this for systems greater than 1500 kW', validators=[django.core.validators.MinValueValidator(0), django.core.validators.MaxValueValidator(100.0)]),
+        ),
+    ]

reoptjl/models.py

@@ -3615,6 +3615,15 @@ class WIND_SIZE_CLASS_CHOICES(models.TextChoices):
         help_text="Only applicable when off_grid_flag=True; defaults to 0.5 (50 pct) for off-grid scenarios and fixed at 0 otherwise."
             "Required operating reserves applied to each timestep as a fraction of wind generation serving load in that timestep."
     )
+    acres_per_kw = models.FloatField(
+        default=0.03,
+        validators=[
+            MinValueValidator(0),
+            MaxValueValidator(100.0)
+        ],
+        blank=True,
+        help_text="Land area required per kW of wind capacity in acres/kW; only constrained by this for systems greater than 1500 kW"
+    )
 
     def clean(self):
         if self.size_class != "" and self.installed_cost_per_kw is None:

reoptjl/test/posts/all_inputs_test.json

@@ -265,7 +265,8 @@
         "can_wholesale": true,
         "can_export_beyond_nem_limit": true,
         "can_curtail": true,
-        "operating_reserve_required_fraction": 0.0
+        "operating_reserve_required_fraction": 0.0,
+        "acres_per_kw": 0.03
     },
     "ExistingBoiler": {
         "production_type": "hot_water",