diff --git a/hems/semp/semp.go b/hems/semp/semp.go
index 495af2019..142910b24 100644
--- a/hems/semp/semp.go
+++ b/hems/semp/semp.go
@@ -368,7 +368,7 @@ func (s *SEMP) deviceStatus(id int, lp core.LoadPointAPI) DeviceStatus {
 
 	res := DeviceStatus{
 		DeviceID:          s.deviceID(id),
-		EMSignalsAccepted: isPV,
+		EMSignalsAccepted: s.controllable && isPV,
 		PowerInfo: PowerInfo{
 			AveragePower:      int(chargePower),
 			AveragingInterval: 60,