diff --git a/.gitignore b/.gitignore
index 1f438e1..7557440 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,5 +22,6 @@ data/processed/*
 !data/raw/solar_hourly.csv
 !data/raw/thuisbatterijgids_catalog.csv
 !data/raw/thuisbatterijgids_catalog.json
+!data/raw/extra_batteries.json
 
 .DS_Store
diff --git a/data/raw/extra_batteries.json b/data/raw/extra_batteries.json
new file mode 100644
index 0000000..b16db05
--- /dev/null
+++ b/data/raw/extra_batteries.json
@@ -0,0 +1,17 @@
+[
+  {
+    "id": -1,
+    "title": "Tesla Powerwall 3 (installed)",
+    "url": "https://www.tesla.com/powerwall",
+    "brand": "Tesla",
+    "brand_slug": "tesla",
+    "capacity": 13.5,
+    "power_continuous": 11500,
+    "price": 9500,
+    "price_per_kwh": 704,
+    "review_score": null,
+    "recommended": false,
+    "installation": "hybrid",
+    "image_url": ""
+  }
+]
diff --git a/src/pluginbattery/web.py b/src/pluginbattery/web.py
index 2bbcd30..0f5c928 100644
--- a/src/pluginbattery/web.py
+++ b/src/pluginbattery/web.py
@@ -49,28 +49,13 @@ _AVG_CONSUMER_BASE = float(_BASE_DF["eur_per_kwh"].mean())
 with open(DATA_DIR / "thuisbatterijgids_catalog.json") as _f:
     _CATALOG = json.load(_f)
 
-# Hybrid / DC-coupled units — not on thuisbatterijgids.net (they only list
-# plug-in), but useful as a reference point. Prices are NL street price incl.
-# a typical install (since these can't be self-installed). Mark with
-# installation == "hybrid" so the LP runs with allows_export=True.
-HYBRID_EXTRAS = [
-    {
-        "id": -1,
-        "title": "Tesla Powerwall 3 (installed)",
-        "url": "https://www.tesla.com/powerwall",
-        "brand": "Tesla",
-        "brand_slug": "tesla",
-        "capacity": 13.5,
-        "power_continuous": 11500,
-        "price": 9500,
-        "price_per_kwh": 704,
-        "review_score": None,
-        "recommended": False,
-        "installation": "hybrid",
-        "image_url": "",
-    },
-]
-_CATALOG = _CATALOG + HYBRID_EXTRAS
+# Edit data/raw/extra_batteries.json to add anything not on thuisbatterijgids.net
+# (hybrids, PV-DC-coupled units, alternative SKUs). Same schema as the scraped
+# catalog; set "installation" to "hybrid" for batteries that can export to grid.
+_EXTRAS_PATH = DATA_DIR / "extra_batteries.json"
+if _EXTRAS_PATH.exists():
+    with open(_EXTRAS_PATH) as _f:
+        _CATALOG = _CATALOG + json.load(_f)
 
 
 def _category(power_kw: float, allows_export: bool) -> str: