diff --git a/data/grid5000/sites/nantes/pdus/pdu-Z1.10.json b/data/grid5000/sites/nantes/pdus/pdu-Z1.10.json
index cb0f4fb16bf4e080009c4612f44f65c34868e68f..c7c8bf99687f30324949676a037a7f7e351f972b 100644
--- a/data/grid5000/sites/nantes/pdus/pdu-Z1.10.json
+++ b/data/grid5000/sites/nantes/pdus/pdu-Z1.10.json
@@ -12,7 +12,7 @@
       }
     }
   ],
-  "model": "",
+  "model": "AP7940",
   "ports": {
     "10": "ecotype-44",
     "11": "ecotype-45",
diff --git a/data/grid5000/sites/nantes/pdus/pdu-Z1.11.json b/data/grid5000/sites/nantes/pdus/pdu-Z1.11.json
index 4e1408be11405f1e8c2d475029ab2489478801a5..3ea6c8db15edcc9cba76a5cc531f0a3a0a4efce8 100644
--- a/data/grid5000/sites/nantes/pdus/pdu-Z1.11.json
+++ b/data/grid5000/sites/nantes/pdus/pdu-Z1.11.json
@@ -12,7 +12,7 @@
       }
     }
   ],
-  "model": "",
+  "model": "AP7940",
   "ports": {
     "1": "electrical_mgmt_board",
     "10": "ecotype-44",
diff --git a/data/grid5000/sites/nantes/pdus/pdu-Z1.20.json b/data/grid5000/sites/nantes/pdus/pdu-Z1.20.json
index 56fcfd7c7913cd7b03925086d13079e8275b9f98..74a344bd2913ae2bd626682bee298b9023a8402f 100644
--- a/data/grid5000/sites/nantes/pdus/pdu-Z1.20.json
+++ b/data/grid5000/sites/nantes/pdus/pdu-Z1.20.json
@@ -12,7 +12,7 @@
       }
     }
   ],
-  "model": "",
+  "model": "AP7940",
   "ports": {
     "10": "ecotype-32",
     "11": "ecotype-33",
diff --git a/data/grid5000/sites/nantes/pdus/pdu-Z1.21.json b/data/grid5000/sites/nantes/pdus/pdu-Z1.21.json
index b5b16f7eb9bc1909a45a8dd9226750d22017ee6b..65392693001ed4be87f5cf6339ea97e7412b74db 100644
--- a/data/grid5000/sites/nantes/pdus/pdu-Z1.21.json
+++ b/data/grid5000/sites/nantes/pdus/pdu-Z1.21.json
@@ -12,7 +12,7 @@
       }
     }
   ],
-  "model": "",
+  "model": "AP7940",
   "ports": {
     "1": "ecotype-prod2",
     "10": "ecotype-32",
diff --git a/data/grid5000/sites/nantes/pdus/pdu-Z1.40.json b/data/grid5000/sites/nantes/pdus/pdu-Z1.40.json
index 6e592d1d58fc5a735c97f03e3e06e39b80c3e34a..5d2b5128c84a5d147127606d79ae468efc0b744c 100644
--- a/data/grid5000/sites/nantes/pdus/pdu-Z1.40.json
+++ b/data/grid5000/sites/nantes/pdus/pdu-Z1.40.json
@@ -12,7 +12,7 @@
       }
     }
   ],
-  "model": "",
+  "model": "AP7940",
   "ports": {
     "1": "sw-ecotype-adm",
     "10": "ecotype-20",
diff --git a/data/grid5000/sites/nantes/pdus/pdu-Z1.41.json b/data/grid5000/sites/nantes/pdus/pdu-Z1.41.json
index 97775214a9541c5c699cf4480e6adac4f295f5a5..7535cdd8b4a080f22fa6a9bfbe67d79b8cffb80a 100644
--- a/data/grid5000/sites/nantes/pdus/pdu-Z1.41.json
+++ b/data/grid5000/sites/nantes/pdus/pdu-Z1.41.json
@@ -12,7 +12,7 @@
       }
     }
   ],
-  "model": "",
+  "model": "AP7940",
   "ports": {
     "10": "ecotype-20",
     "11": "ecotype-21",
diff --git a/data/grid5000/sites/nantes/pdus/pdu-Z1.50.json b/data/grid5000/sites/nantes/pdus/pdu-Z1.50.json
index e70e65d7264e2bc2c03d837eeeb401f228f90d27..6f3f0072c58232498790e13dcd5521186ae6c2fc 100644
--- a/data/grid5000/sites/nantes/pdus/pdu-Z1.50.json
+++ b/data/grid5000/sites/nantes/pdus/pdu-Z1.50.json
@@ -12,7 +12,7 @@
       }
     }
   ],
-  "model": "",
+  "model": "AP7940",
   "ports": {
     "10": "ecotype-8",
     "11": "ecotype-9",
diff --git a/data/grid5000/sites/nantes/pdus/pdu-Z1.51.json b/data/grid5000/sites/nantes/pdus/pdu-Z1.51.json
index 43627683cf20c76edcf01aa1fcde02f9d49d3735..1c941f33f563dec6bdf25bf65c8c01b2320a4b6e 100644
--- a/data/grid5000/sites/nantes/pdus/pdu-Z1.51.json
+++ b/data/grid5000/sites/nantes/pdus/pdu-Z1.51.json
@@ -12,7 +12,7 @@
       }
     }
   ],
-  "model": "",
+  "model": "AP7940",
   "ports": {
     "1": "ecotype-prod2",
     "10": "ecotype-8",
diff --git a/input/grid5000/sites/nantes/pdus.yaml b/input/grid5000/sites/nantes/pdus.yaml
index c6a79d8adbf5682447fff3a1d3bfd0577ca8cde3..9e59cb6d399f5b29164b11198777bc1d8e4941e8 100644
--- a/input/grid5000/sites/nantes/pdus.yaml
+++ b/input/grid5000/sites/nantes/pdus.yaml
@@ -2,7 +2,7 @@
 pdus:
   pdu-Z1.10:
     vendor: APC
-    model: ''
+    model: 'AP7940'
     metrics:
       - name: pdu_outlet_power_watt
         description: Power consumption per outlet reported by PDU, in watt
@@ -28,7 +28,7 @@ pdus:
 
   pdu-Z1.11:
     vendor: APC
-    model: ''
+    model: 'AP7940'
     metrics:
       - name: pdu_outlet_power_watt
         description: Power consumption per outlet reported by PDU, in watt
@@ -55,7 +55,7 @@ pdus:
 
   pdu-Z1.20:
     vendor: APC
-    model: ''
+    model: 'AP7940'
     metrics:
       - name: pdu_outlet_power_watt
         description: Power consumption per outlet reported by PDU, in watt
@@ -81,7 +81,7 @@ pdus:
 
   pdu-Z1.21:
     vendor: APC
-    model: ''
+    model: 'AP7940'
     metrics:
       - name: pdu_outlet_power_watt
         description: Power consumption per outlet reported by PDU, in watt
@@ -107,7 +107,7 @@ pdus:
       14: ecotype-36
   pdu-Z1.40:
     vendor: APC
-    model: ''
+    model: 'AP7940'
     metrics:
       - name: pdu_outlet_power_watt
         description: Power consumption per outlet reported by PDU, in watt
@@ -134,7 +134,7 @@ pdus:
 
   pdu-Z1.41:
     vendor: APC
-    model: ''
+    model: 'AP7940'
     metrics:
       - name: pdu_outlet_power_watt
         description: Power consumption per outlet reported by PDU, in watt
@@ -160,7 +160,7 @@ pdus:
 
   pdu-Z1.50:
     vendor: APC
-    model: ''
+    model: 'AP7940'
     metrics:
       - name: pdu_outlet_power_watt
         description: Power consumption per outlet reported by PDU, in watt
@@ -186,7 +186,7 @@ pdus:
 
   pdu-Z1.51:
     vendor: APC
-    model: ''
+    model: 'AP7940'
     metrics:
       - name: pdu_outlet_power_watt
         description: Power consumption per outlet reported by PDU, in watt