diff --git a/core/loadpoint.go b/core/loadpoint.go
index ebaa30b6e..fec0e29f8 100644
--- a/core/loadpoint.go
+++ b/core/loadpoint.go
@@ -347,6 +347,7 @@ func (lp *LoadPoint) Prepare(uiChan chan<- util.Param, pushChan chan<- push.Even
 	lp.publish("maxCurrent", lp.MaxCurrent)
 	lp.publish("phases", lp.Phases)
 	lp.publish("activePhases", lp.Phases)
+	lp.publish("soc", len(lp.vehicles) > 0)
 
 	lp.Lock()
 	lp.publish("mode", lp.Mode)