diff --git a/devices/generic/items/state_power_divisor_item.json b/devices/generic/items/state_power_divisor_item.json
new file mode 100644
index 0000000000..e01d5116d6
--- /dev/null
+++ b/devices/generic/items/state_power_divisor_item.json
@@ -0,0 +1,22 @@
+{
+  "schema": "resourceitem1.schema.json",
+  "id": "state/power_divisor",
+  "datatype": "UInt16",
+  "access": "R",
+  "public": false,
+  "description": "AC Power Divisor to be divided against the Instantaneous Power and Active Power attributes.",
+  "read": {
+    "at": "0x0605",
+    "cl": "0x0b04",
+    "ep": 0,
+    "fn": "zcl:attr"
+  },
+  "parse": {
+    "at": "0x0605",
+    "cl": "0x0b04",
+    "ep": 0,
+    "eval": "if (Attr.val > 0) { Item.val = Attr.val; }"
+  },
+  "refresh.interval": 300,
+  "default": 1
+}
diff --git a/devices/generic/items/state_power_item.json b/devices/generic/items/state_power_item.json
index a1924b19b5..56a410505e 100644
--- a/devices/generic/items/state_power_item.json
+++ b/devices/generic/items/state_power_item.json
@@ -2,9 +2,9 @@
   "schema": "resourceitem1.schema.json",
   "id": "state/power",
   "datatype": "Int16",
-  "access": "RW",
+  "access": "R",
   "public": true,
-  "description": "The measured power (in W).",
+  "description": "Active Power (in Watts). Positive values indicate power delivered, negative values indicate power received.",
   "read": {
     "at": "0x050b",
     "cl": "0x0b04",
@@ -15,7 +15,7 @@
     "at": "0x050b",
     "cl": "0x0b04",
     "ep": 0,
-    "eval": "if (Attr.val != -32768 && Attr.val != 32768) { Item.val = Attr.val; }"
+    "eval": "if (Attr.val != -32768 && Attr.val != 32768) { Item.val = Attr.val * R.item('state/power_multiplier').val / R.item('state/power_divisor').val; }"
   },
   "refresh.interval": 300,
   "default": 0
diff --git a/devices/generic/items/state_power_multiplier_item.json b/devices/generic/items/state_power_multiplier_item.json
new file mode 100644
index 0000000000..7359ff5089
--- /dev/null
+++ b/devices/generic/items/state_power_multiplier_item.json
@@ -0,0 +1,22 @@
+{
+  "schema": "resourceitem1.schema.json",
+  "id": "state/power_multiplier",
+  "datatype": "UInt16",
+  "access": "R",
+  "public": false,
+  "description": "AC Power Divisor to be divided against the Instantaneous Power and Active Power attributes.",
+  "read": {
+    "at": "0x0604",
+    "cl": "0x0b04",
+    "ep": 0,
+    "fn": "zcl:attr"
+  },
+  "parse": {
+    "at": "0x0604",
+    "cl": "0x0b04",
+    "ep": 0,
+    "eval": "if (Attr.val > 0) { Item.val = Attr.val; }"
+  },
+  "refresh.interval": 300,
+  "default": 1
+}