diff --git a/Ontology/Willow/Capability/Sensor/QuantitySensor/CurrentSensor/Current Magnitude Sensor/Line A/LineACurrentDemandSensor.json b/Ontology/Willow/Capability/Sensor/QuantitySensor/CurrentSensor/Current Magnitude Sensor/Line A/LineACurrentDemandSensor.json
new file mode 100644
index 00000000..297f3c1a
--- /dev/null
+++ b/Ontology/Willow/Capability/Sensor/QuantitySensor/CurrentSensor/Current Magnitude Sensor/Line A/LineACurrentDemandSensor.json	
@@ -0,0 +1,17 @@
+{
+  "@id": "dtmi:com:willowinc:LineACurrentDemandSensor;1",
+  "@type": "Interface",
+  "displayName": {
+    "en": "Line A Current Demand Sensor"
+  },
+  "description": {"en": "The current demand feedback from a sensor associated with line a"},
+  "extends" : [
+    "dtmi:com:willowinc:LineACurrentMagnitudeSensor;1"
+  ],
+  "contents": [
+
+  ],
+  "@context": [
+    "dtmi:dtdl:context;3"
+  ]
+}
diff --git a/Ontology/Willow/Capability/Sensor/QuantitySensor/CurrentSensor/Current Magnitude Sensor/Line A/LineACurrentMagnitudeSensor.json b/Ontology/Willow/Capability/Sensor/QuantitySensor/CurrentSensor/Current Magnitude Sensor/Line A/LineACurrentMagnitudeSensor.json
new file mode 100644
index 00000000..1e64eb56
--- /dev/null
+++ b/Ontology/Willow/Capability/Sensor/QuantitySensor/CurrentSensor/Current Magnitude Sensor/Line A/LineACurrentMagnitudeSensor.json	
@@ -0,0 +1,17 @@
+{
+  "@id": "dtmi:com:willowinc:LineACurrentMagnitudeSensor;1",
+  "@type": "Interface",
+  "displayName": {
+    "en": "Line A Current Magnitude Sensor"
+  },
+  "description": {"en": "The current magnitude feedback from a sensor associated with line a"},
+  "extends" : [
+    "dtmi:com:willowinc:CurrentMagnitudeSensor;1"
+  ],
+  "contents": [
+
+  ],
+  "@context": [
+    "dtmi:dtdl:context;3"
+  ]
+}
diff --git a/Ontology/Willow/Capability/Sensor/QuantitySensor/CurrentSensor/Current Magnitude Sensor/Line B/LineBCurrentDemandSensor.json b/Ontology/Willow/Capability/Sensor/QuantitySensor/CurrentSensor/Current Magnitude Sensor/Line B/LineBCurrentDemandSensor.json
new file mode 100644
index 00000000..c69e7c0c
--- /dev/null
+++ b/Ontology/Willow/Capability/Sensor/QuantitySensor/CurrentSensor/Current Magnitude Sensor/Line B/LineBCurrentDemandSensor.json	
@@ -0,0 +1,17 @@
+{
+  "@id": "dtmi:com:willowinc:LineBCurrentDemandSensor;1",
+  "@type": "Interface",
+  "displayName": {
+    "en": "Line B Current Demand Sensor"
+  },
+  "description": {"en": "The current demand feedback from a sensor associated with line b"},
+  "extends" : [
+    "dtmi:com:willowinc:LineBCurrentMagnitudeSensor;1"
+  ],
+  "contents": [
+
+  ],
+  "@context": [
+    "dtmi:dtdl:context;3"
+  ]
+}
diff --git a/Ontology/Willow/Capability/Sensor/QuantitySensor/CurrentSensor/Current Magnitude Sensor/Line B/LineBCurrentMagnitudeSensor.json b/Ontology/Willow/Capability/Sensor/QuantitySensor/CurrentSensor/Current Magnitude Sensor/Line B/LineBCurrentMagnitudeSensor.json
new file mode 100644
index 00000000..3c67fbe1
--- /dev/null
+++ b/Ontology/Willow/Capability/Sensor/QuantitySensor/CurrentSensor/Current Magnitude Sensor/Line B/LineBCurrentMagnitudeSensor.json	
@@ -0,0 +1,17 @@
+{
+  "@id": "dtmi:com:willowinc:LineBCurrentMagnitudeSensor;1",
+  "@type": "Interface",
+  "displayName": {
+    "en": "Line B Current Magnitude Sensor"
+  },
+  "description": {"en": "The current magnitude feedback from a sensor associated with line b"},
+  "extends" : [
+    "dtmi:com:willowinc:CurrentMagnitudeSensor;1"
+  ],
+  "contents": [
+
+  ],
+  "@context": [
+    "dtmi:dtdl:context;3"
+  ]
+}
diff --git a/Ontology/Willow/Capability/Sensor/QuantitySensor/CurrentSensor/Current Magnitude Sensor/Line C/LineCCurrentDemandSensor.json b/Ontology/Willow/Capability/Sensor/QuantitySensor/CurrentSensor/Current Magnitude Sensor/Line C/LineCCurrentDemandSensor.json
new file mode 100644
index 00000000..b30e7e9d
--- /dev/null
+++ b/Ontology/Willow/Capability/Sensor/QuantitySensor/CurrentSensor/Current Magnitude Sensor/Line C/LineCCurrentDemandSensor.json	
@@ -0,0 +1,17 @@
+{
+  "@id": "dtmi:com:willowinc:LineCCurrentDemandSensor;1",
+  "@type": "Interface",
+  "displayName": {
+    "en": "Line C Current Demand Sensor"
+  },
+  "description": {"en": "The current demand feedback from a sensor associated with line c"},
+  "extends" : [
+    "dtmi:com:willowinc:LineCCurrentMagnitudeSensor;1"
+  ],
+  "contents": [
+
+  ],
+  "@context": [
+    "dtmi:dtdl:context;3"
+  ]
+}
diff --git a/Ontology/Willow/Capability/Sensor/QuantitySensor/CurrentSensor/Current Magnitude Sensor/Line C/LineCCurrentMagnitudeSensor.json b/Ontology/Willow/Capability/Sensor/QuantitySensor/CurrentSensor/Current Magnitude Sensor/Line C/LineCCurrentMagnitudeSensor.json
new file mode 100644
index 00000000..7fb43d0a
--- /dev/null
+++ b/Ontology/Willow/Capability/Sensor/QuantitySensor/CurrentSensor/Current Magnitude Sensor/Line C/LineCCurrentMagnitudeSensor.json	
@@ -0,0 +1,17 @@
+{
+  "@id": "dtmi:com:willowinc:LineCCurrentMagnitudeSensor;1",
+  "@type": "Interface",
+  "displayName": {
+    "en": "Line C Current Magnitude Sensor"
+  },
+  "description": {"en": "The current magnitude feedback from a sensor associated with line c"},
+  "extends" : [
+    "dtmi:com:willowinc:CurrentMagnitudeSensor;1"
+  ],
+  "contents": [
+
+  ],
+  "@context": [
+    "dtmi:dtdl:context;3"
+  ]
+}
diff --git a/Ontology/Willow/Capability/Sensor/QuantitySensor/VoltageSensor/Voltage Magnitude Sensor/LineNGVoltageMagnitudeSensor.json b/Ontology/Willow/Capability/Sensor/QuantitySensor/VoltageSensor/Voltage Magnitude Sensor/LineNGVoltageMagnitudeSensor.json
new file mode 100644
index 00000000..35bcfbf0
--- /dev/null
+++ b/Ontology/Willow/Capability/Sensor/QuantitySensor/VoltageSensor/Voltage Magnitude Sensor/LineNGVoltageMagnitudeSensor.json	
@@ -0,0 +1,17 @@
+{
+  "@id": "dtmi:com:willowinc:LineNGVoltageMagnitudeSensor;1",
+  "@type": "Interface",
+  "displayName": {
+    "en": "Line N-G Voltage Magnitude Sensor"
+  },
+  "description": {"en": "The voltage magnitude feedback from a sensor associated with line n-g, neutral to ground"},
+  "extends" : [
+    "dtmi:com:willowinc:VoltageMagnitudeSensor;1"
+  ],
+  "contents": [
+
+  ],
+  "@context": [
+    "dtmi:dtdl:context;3"
+  ]
+}