diff --git a/templates/definition/tariff/electricitymaps.yaml b/templates/definition/tariff/electricitymaps.yaml
index 5500e5ab0..9b59319b6 100644
--- a/templates/definition/tariff/electricitymaps.yaml
+++ b/templates/definition/tariff/electricitymaps.yaml
@@ -25,6 +25,7 @@ params:
       en: "see [api.electricitymap.org](https://api.electricitymap.org/v3/zones)"
 render: |
   type: electricitymaps
+  features: ["cacheable"]
   uri: {{ .uri }}
   token: {{ .token }}
   zone: {{ .zone }}
diff --git a/templates/definition/tariff/energypriceforecast-co2.yaml b/templates/definition/tariff/energypriceforecast-co2.yaml
index d7f7af61b..d2fa25f23 100644
--- a/templates/definition/tariff/energypriceforecast-co2.yaml
+++ b/templates/definition/tariff/energypriceforecast-co2.yaml
@@ -26,6 +26,7 @@ params:
     required: true
 render: |
   type: custom
+  features: ["cacheable"]
   tariff: co2
   forecast:
     source: http