Improve Envoy detection and support multiple Envoys (#26665)

* Bump envoy_reader to 0.8.6, fix missing dependency

* Support for optional name in config

* Replace str.format with f-strings

homeassistant/components/enphase_envoy/sensor.py

@@ -9,6 +9,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.const import (
     CONF_IP_ADDRESS,
     CONF_MONITORED_CONDITIONS,
+    CONF_NAME,
     POWER_WATT,
     ENERGY_WATT_HOUR,
 )
@@ -44,6 +45,7 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
         vol.Optional(CONF_MONITORED_CONDITIONS, default=list(SENSORS)): vol.All(
             cv.ensure_list, [vol.In(list(SENSORS))]
         ),
+        vol.Optional(CONF_NAME, default=""): cv.string,
     }
 )
 
@@ -54,6 +56,7 @@ async def async_setup_platform(hass, config, async_add_entities, discovery_info=
 
     ip_address = config[CONF_IP_ADDRESS]
     monitored_conditions = config[CONF_MONITORED_CONDITIONS]
+    name = config[CONF_NAME]
 
     entities = []
     # Iterate through the list of sensors
@@ -66,14 +69,17 @@ async def async_setup_platform(hass, config, async_add_entities, discovery_info=
                         Envoy(
                             ip_address,
                             condition,
-                            "{} {}".format(SENSORS[condition][0], inverter),
+                            f"{name}{SENSORS[condition][0]} {inverter}",
                             SENSORS[condition][1],
                         )
                     )
         else:
             entities.append(
                 Envoy(
-                    ip_address, condition, SENSORS[condition][0], SENSORS[condition][1]
+                    ip_address,
+                    condition,
+                    f"{name}{SENSORS[condition][0]}",
+                    SENSORS[condition][1],
                 )
             )
     async_add_entities(entities)