Change PHOTOVOLTAIC to PV (#376)

Author: tiyash-basu-frequenz

RELEASE_NOTES.md

@@ -33,7 +33,7 @@
 
             + `COMPONENT_CATEGORY_GRID` to `ELECTRICAL_COMPONENT_CATEGORY_GRID_CONNECTION_POINT`
             + `ComponentCategoryMetadataVariant.metadata.grid` to `ElectricalComponentCategorySpecificInfo.kind.grid_connection_point`
-        * `InverterType.INVERTER_TYPE_SOLAR` to `InverterType.INVERTER_TYPE_PHOTOVOLTAIC` (to align with the more colloquial term "PV inverter", but without using abbreviations)
+        * `InverterType.INVERTER_TYPE_SOLAR` to `InverterType.INVERTER_TYPE_PV` (to align with the more colloquial term "PV inverter")
 
     + `microgrid.sensors`:
 

proto/frequenz/api/common/v1/metrics/metrics.proto

@@ -185,8 +185,8 @@ enum MetricConnectionCategory {
   // A connection to a metric representing a battery.
   METRIC_CONNECTION_CATEGORY_BATTERY = 2;
 
-  // A connection to a metric representing a photovoltaic (PV) array or string.
-  METRIC_CONNECTION_CATEGORY_PHOTOVOLTAIC = 3;
+  // A connection to a metric representing a PV (photovoltaic) array or string.
+  METRIC_CONNECTION_CATEGORY_PV = 3;
 
   // A connection to a metric representing ambient conditions.
   METRIC_CONNECTION_CATEGORY_AMBIENT = 10;

proto/frequenz/api/common/v1/microgrid/electrical_components/inverter.proto

@@ -18,8 +18,8 @@ enum InverterType {
   // Battery inverter.
   INVERTER_TYPE_BATTERY = 1;
 
-  // Photovoltaic (PV) inverter.
-  INVERTER_TYPE_PHOTOVOLTAIC = 2;
+  // PV (photovoltaic) inverter.
+  INVERTER_TYPE_PV = 2;
 
   // Hybrid inverter.
   INVERTER_TYPE_HYBRID = 3;