diff --git a/core/site.go b/core/site.go
index 4485fe70d..55cbf83c5 100644
--- a/core/site.go
+++ b/core/site.go
@@ -455,7 +455,7 @@ func (site *Site) update(lp Updater) {
 	// TODO: use energy instead of current power for better results
 	deltaCharged, deltaSelf := site.savings.Update(site, site.gridPower, site.pvPower, site.batteryPower, totalChargePower)
 	if telemetry.Enabled && totalChargePower > standbyPower {
-		go telemetry.ChargeProgress(site.log, totalChargePower, deltaCharged, deltaSelf)
+		go telemetry.UpdateChargeProgress(site.log, totalChargePower, deltaCharged, deltaSelf)
 	}
 }
 
diff --git a/util/telemetry/charging.go b/util/telemetry/charging.go
index 8730201c4..6608c14b6 100644
--- a/util/telemetry/charging.go
+++ b/util/telemetry/charging.go
@@ -24,15 +24,12 @@ func Create(token string) error {
 	return nil
 }
 
-func ChargeProgress(log *util.Logger, power, deltaCharged, deltaGreen float64) {
+func UpdateChargeProgress(log *util.Logger, power, deltaCharged, deltaGreen float64) {
 	log.DEBUG.Printf("telemetry: charge: Δ%.0f/%.0fWh @ %.0fW", deltaGreen*1e3, deltaCharged*1e3, power)
 
-	data := struct {
-		ChargePower  float64 `json:"chargePower"`
-		ChargeEnergy float64 `json:"chargeEnergy"`
-		GreenEnergy  float64 `json:"greenEnergy"`
-	}{
+	data := ChargeProgress{
 		ChargePower:  power,
+		GreenPower:   power * deltaGreen / deltaCharged,
 		ChargeEnergy: deltaCharged,
 		GreenEnergy:  deltaGreen,
 	}
diff --git a/util/telemetry/types.go b/util/telemetry/types.go
new file mode 100644
index 000000000..62e429c69
--- /dev/null
+++ b/util/telemetry/types.go
@@ -0,0 +1,8 @@
+package telemetry
+
+type ChargeProgress struct {
+	ChargePower  float64 `json:"chargePower"`
+	GreenPower   float64 `json:"greenPower"`
+	ChargeEnergy float64 `json:"chargeEnergy"`
+	GreenEnergy  float64 `json:"greenEnergy"`
+}