diff --git a/tesla_powerwall/const.py b/tesla_powerwall/const.py
index 1b52447..2910f20 100644
--- a/tesla_powerwall/const.py
+++ b/tesla_powerwall/const.py
@@ -63,6 +63,7 @@ class MeterType(Enum):
     SITE = "site"
     BATTERY = "battery"
     LOAD = "load"
+    GENERATOR = "generator"
 
 
 class DeviceType(Enum):