diff --git a/core/site.go b/core/site.go
index b8adce9e1..bc3a464e5 100644
--- a/core/site.go
+++ b/core/site.go
@@ -534,17 +534,27 @@ func (site *Site) sitePower(totalChargePower, flexiblePower float64) (float64, b
 	sitePower := sitePower(site.log, site.MaxGridSupplyWhileBatteryCharging, site.gridPower, batteryPower, site.ResidualPower)
 
 	// deduct smart loads
-	var auxPower float64
-	for i, meter := range site.auxMeters {
-		if power, err := meter.CurrentPower(); err != nil {
-			site.log.ERROR.Printf("aux meter %d: %v", i, err)
-		} else {
-			auxPower += power
-			site.log.DEBUG.Printf("aux power %d: %.0fW", i, power)
+	if len(site.auxMeters) > 0 {
+		var auxPower float64
+		mm := make([]meterMeasurement, len(site.auxMeters))
+
+		for i, meter := range site.auxMeters {
+			if power, err := meter.CurrentPower(); err == nil {
+				auxPower += power
+				mm[i].Power = power
+				site.log.DEBUG.Printf("aux power %d: %.0fW", i+1, power)
+			} else {
+				site.log.ERROR.Printf("aux meter %d: %v", i+1, err)
+			}
 		}
+
+		sitePower -= auxPower
+
+		site.log.DEBUG.Printf("aux power: %.0fW", auxPower)
+		site.publish("auxPower", auxPower)
+
+		site.publish("aux", mm)
 	}
-	site.publish("auxPower", auxPower)
-	sitePower -= auxPower
 
 	// handle priority
 	if flexiblePower > 0 {
diff --git a/evcc.dist.yaml b/evcc.dist.yaml
index 868ee8bf2..9a29a13e5 100644
--- a/evcc.dist.yaml
+++ b/evcc.dist.yaml
@@ -107,7 +107,8 @@ site:
       - pv # list of pv inverters/ meters
     battery:
       - battery # list of battery meters
-    aux: aux # auxiliary meters for adjusting grid operating point
+    aux:
+      - aux # list of auxiliary meters for adjusting grid operating point
   residualPower: # additional household usage margin
   prioritySoc: # give home battery priority up to this soc (empty to disable)
   bufferSoc: # ignore home battery discharge above soc (empty to disable)