diff --git a/server/src/main/java/net/laprun/sustainability/power/sensors/AbstractPowerSensor.java b/server/src/main/java/net/laprun/sustainability/power/sensors/AbstractPowerSensor.java
index d1b9ee2..fc52ce4 100644
--- a/server/src/main/java/net/laprun/sustainability/power/sensors/AbstractPowerSensor.java
+++ b/server/src/main/java/net/laprun/sustainability/power/sensors/AbstractPowerSensor.java
@@ -1,5 +1,7 @@
 package net.laprun.sustainability.power.sensors;
 
+import io.quarkus.logging.Log;
+
 public abstract class AbstractPowerSensor<M extends Measures> implements PowerSensor {
     protected final M measures;
 
@@ -9,11 +11,13 @@ public AbstractPowerSensor(M measures) {
 
     @Override
     public RegisteredPID register(long pid) {
+        Log.info("Registered pid: " + pid);
         return measures.register(pid);
     }
 
     @Override
     public void unregister(RegisteredPID registeredPID) {
         measures.unregister(registeredPID);
+        Log.info("Unregistered pid: " + registeredPID.pid());
     }
 }
diff --git a/server/src/main/java/net/laprun/sustainability/power/sensors/RegisteredPID.java b/server/src/main/java/net/laprun/sustainability/power/sensors/RegisteredPID.java
index 8bfa1fa..c744a8f 100644
--- a/server/src/main/java/net/laprun/sustainability/power/sensors/RegisteredPID.java
+++ b/server/src/main/java/net/laprun/sustainability/power/sensors/RegisteredPID.java
@@ -9,4 +9,8 @@ public RegisteredPID(long pid) {
     public static String prepare(long pid) {
         return " " + pid + " ";
     }
+
+    public long pid() {
+        return Long.parseLong(stringForMatching().trim());
+    }
 }