diff --git a/homeassistant/components/powerwall/strings.json b/homeassistant/components/powerwall/strings.json
index 2ec174a4b18..86b7db3e909 100644
--- a/homeassistant/components/powerwall/strings.json
+++ b/homeassistant/components/powerwall/strings.json
@@ -3,14 +3,18 @@
     "step": {
       "user": {
         "title": "Connect to the powerwall",
-        "data": { "ip_address": "[%key:common::config_flow::data::ip%]" }
+        "data": {
+          "ip_address": "[%key:common::config_flow::data::ip%]"
+        }
       }
     },
     "error": {
-      "cannot_connect": "Failed to connect, please try again",
+      "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]",
       "wrong_version": "Your powerwall uses a software version that is not supported. Please consider upgrading or reporting this issue so it can be resolved.",
-      "unknown": "Unexpected error"
+      "unknown": "[%key:common::config_flow::error::unknown%]"
     },
-    "abort": { "already_configured": "The powerwall is already configured" }
+    "abort": {
+      "already_configured": "[%key:common::config_flow::abort::already_configured_device%]"
+    }
   }
 }