diff --git a/src/WebApi_prometheus.cpp b/src/WebApi_prometheus.cpp
index 3596376ea..2cbc6f5d1 100644
--- a/src/WebApi_prometheus.cpp
+++ b/src/WebApi_prometheus.cpp
@@ -81,6 +81,22 @@ void WebApiPrometheusClass::onPrometheusMetricsGet(AsyncWebServerRequest* reques
             stream->printf("opendtu_last_update{serial=\"%s\",unit=\"%d\",name=\"%s\"} %d\n",
                 serial.c_str(), i, name, inv->Statistics()->getLastUpdate() / 1000);
 
+            if (i == 0) {
+                stream->print("# HELP opendtu_inverter_limit_relative current relative limit of the inverter\n");
+                stream->print("# TYPE opendtu_inverter_limit_relative gauge\n");
+            }
+            stream->printf("opendtu_inverter_limit_relative{serial=\"%s\",unit=\"%d\",name=\"%s\"} %f\n",
+                serial.c_str(), i, name, inv->SystemConfigPara()->getLimitPercent() / 100.0);
+
+            if (inv->DevInfo()->getMaxPower() > 0) {
+                if (i == 0) {
+                    stream->print("# HELP opendtu_inverter_limit_absolute current relative limit of the inverter\n");
+                    stream->print("# TYPE opendtu_inverter_limit_absolute gauge\n");
+                }
+                stream->printf("opendtu_inverter_limit_absolute{serial=\"%s\",unit=\"%d\",name=\"%s\"} %f\n",
+                    serial.c_str(), i, name, inv->SystemConfigPara()->getLimitPercent() * inv->DevInfo()->getMaxPower() / 100.0);
+            }
+
             // Loop all channels if Statistics have been updated at least once since DTU boot
             if (inv->Statistics()->getLastUpdate() > 0) {
                 for (auto& t : inv->Statistics()->getChannelTypes()) {