diff --git a/Resources/Prototypes/Entities/Structures/Power/Generation/teg.yml b/Resources/Prototypes/Entities/Structures/Power/Generation/teg.yml
index e6e4b6b72b..debc07b6eb 100644
--- a/Resources/Prototypes/Entities/Structures/Power/Generation/teg.yml
+++ b/Resources/Prototypes/Entities/Structures/Power/Generation/teg.yml
@@ -62,6 +62,7 @@
     # It fires processing on behalf of its connected circulators.
     - type: AtmosDevice
     - type: TegGenerator
+      thermalEfficiency: 0.1
 
     - type: DeviceNetwork
       deviceNetId: AtmosDevices