diff --git a/data/grid5000/sites/nancy/pdus/gros-wattmetre1.json b/data/grid5000/sites/nancy/pdus/gros-wattmetre1.json
index c3b23d976bfebd240f974936a5dd0b60c3af4a6d..2794932372ec0d0b489408df333f176d614ccf06 100644
--- a/data/grid5000/sites/nancy/pdus/gros-wattmetre1.json
+++ b/data/grid5000/sites/nancy/pdus/gros-wattmetre1.json
@@ -1,5 +1,16 @@
 {
   "ip": "172.16.79.18",
+  "metrics": [
+    {
+      "description": "Power consumption per outlet reported by wattmetre, in watt",
+      "name": "wattmetre_power_watt",
+      "optional_period": 20,
+      "period": 1000,
+      "source": {
+        "protocol": "wattmetre"
+      }
+    }
+  ],
   "model": "",
   "ports": {
     "0": "gros-1",
diff --git a/data/grid5000/sites/nancy/pdus/gros-wattmetre2.json b/data/grid5000/sites/nancy/pdus/gros-wattmetre2.json
index 967b49c754f39b9e6074bb47cdf8957022697f45..dcc5aba66f10b5f7cbad758eeaae799fb9abaaaf 100644
--- a/data/grid5000/sites/nancy/pdus/gros-wattmetre2.json
+++ b/data/grid5000/sites/nancy/pdus/gros-wattmetre2.json
@@ -1,5 +1,16 @@
 {
   "ip": "172.16.79.18",
+  "metrics": [
+    {
+      "description": "Power consumption per outlet reported by wattmetre, in watt",
+      "name": "wattmetre_power_watt",
+      "optional_period": 20,
+      "period": 1000,
+      "source": {
+        "protocol": "wattmetre"
+      }
+    }
+  ],
   "model": "",
   "ports": {
     "0": "gros-71",
diff --git a/data/grid5000/sites/nancy/pdus/gros-wattmetre3.json b/data/grid5000/sites/nancy/pdus/gros-wattmetre3.json
index 2dea1e1f3269d28e533d1316f645c99f26623136..35a5a0ecdb90cb2f864ae32bc311182225dde152 100644
--- a/data/grid5000/sites/nancy/pdus/gros-wattmetre3.json
+++ b/data/grid5000/sites/nancy/pdus/gros-wattmetre3.json
@@ -1,5 +1,16 @@
 {
   "ip": "172.16.79.18",
+  "metrics": [
+    {
+      "description": "Power consumption per outlet reported by wattmetre, in watt",
+      "name": "wattmetre_power_watt",
+      "optional_period": 20,
+      "period": 1000,
+      "source": {
+        "protocol": "wattmetre"
+      }
+    }
+  ],
   "model": "",
   "ports": {
     "0": "gros-113",
diff --git a/input/grid5000/sites/nancy/pdus.yaml b/input/grid5000/sites/nancy/pdus.yaml
index 50a6287abf6c2c0194227f70456dcd0a51a89eac..df853d6266a861d6f9c99f1d0e25ee527d8be3f2 100644
--- a/input/grid5000/sites/nancy/pdus.yaml
+++ b/input/grid5000/sites/nancy/pdus.yaml
@@ -190,6 +190,14 @@ pdus:
             unit: W
             www:
               url: "http://wattmetre.nancy.grid5000.fr/GetWatts-json.php"
+    metrics:
+    - name: wattmetre_power_watt
+      description: Power consumption per outlet reported by wattmetre, in watt
+      period: 1000
+      optional_period: 20
+      source:
+        protocol: wattmetre
+
   gros-wattmetre2:
     vendor: OmegaWatt
     model: ''
@@ -203,6 +211,14 @@ pdus:
             unit: W
             www:
               url: "http://wattmetre.nancy.grid5000.fr/GetWatts-json.php"
+    metrics:
+    - name: wattmetre_power_watt
+      description: Power consumption per outlet reported by wattmetre, in watt
+      period: 1000
+      optional_period: 20
+      source:
+        protocol: wattmetre
+
   gros-wattmetre3:
     vendor: OmegaWatt
     model: ''
@@ -216,3 +232,10 @@ pdus:
             unit: W
             www:
               url: "http://wattmetre.nancy.grid5000.fr/GetWatts-json.php"
+    metrics:
+    - name: wattmetre_power_watt
+      description: Power consumption per outlet reported by wattmetre, in watt
+      period: 1000
+      optional_period: 20
+      source:
+        protocol: wattmetre