From 67cbbc3522ca7bda6391fc90761a7b8d087f7dcc Mon Sep 17 00:00:00 2001
From: Jan-Philipp Benecke <jan-philipp@bnck.me>
Date: Tue, 14 Oct 2025 14:50:28 +0200
Subject: [PATCH] Move Electricity Maps url out of strings.json (#154284)

---
 homeassistant/components/co2signal/config_flow.py | 6 ++++++
 homeassistant/components/co2signal/strings.json   | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/homeassistant/components/co2signal/config_flow.py b/homeassistant/components/co2signal/config_flow.py
index 00acd2829a66..2401121b76e0 100644
--- a/homeassistant/components/co2signal/config_flow.py
+++ b/homeassistant/components/co2signal/config_flow.py
@@ -38,6 +38,10 @@ TYPE_SPECIFY_COUNTRY = "specify_country_code"
 
 _LOGGER = logging.getLogger(__name__)
 
+DESCRIPTION_PLACEHOLDER = {
+    "register_link": "https://electricitymaps.com/free-tier",
+}
+
 
 class ElectricityMapsConfigFlow(ConfigFlow, domain=DOMAIN):
     """Handle a config flow for Co2signal."""
@@ -70,6 +74,7 @@ class ElectricityMapsConfigFlow(ConfigFlow, domain=DOMAIN):
             return self.async_show_form(
                 step_id="user",
                 data_schema=data_schema,
+                description_placeholders=DESCRIPTION_PLACEHOLDER,
             )
 
         data = {CONF_API_KEY: user_input[CONF_API_KEY]}
@@ -179,4 +184,5 @@ class ElectricityMapsConfigFlow(ConfigFlow, domain=DOMAIN):
             step_id=step_id,
             data_schema=data_schema,
             errors=errors,
+            description_placeholders=DESCRIPTION_PLACEHOLDER,
         )
diff --git a/homeassistant/components/co2signal/strings.json b/homeassistant/components/co2signal/strings.json
index a4ec916bd428..69925f589938 100644
--- a/homeassistant/components/co2signal/strings.json
+++ b/homeassistant/components/co2signal/strings.json
@@ -6,7 +6,7 @@
           "location": "[%key:common::config_flow::data::location%]",
           "api_key": "[%key:common::config_flow::data::access_token%]"
         },
-        "description": "Visit https://electricitymaps.com/free-tier to request a token."
+        "description": "Visit the [Electricity Maps page]({register_link}) to request a token."
       },
       "coordinates": {
         "data": {