Add documentation for new Enphase Envoy platform

source/_components/sensor.enphase_envoy.markdown

@@ -0,0 +1,55 @@
+---
+layout: page
+title: "Enphase Envoy"
+description: "Instructions on how to setup Enphase Envoy with Home Assistant."
+date: 2018-06-30 12:30
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: enphase-logo.svg
+ha_category: Energy
+ha_release: 0.76
+ha_iot_class: "Local Polling"
+---
+
+A sensor platform for the [Enphase Envoy](https://enphase.com/en-us/products-and-services/envoy) solar energy monitor.
+
+### {% linkable_title Configuration %}
+
+To enable this sensor, add the following lines to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+sensor:
+  - platform: enphase_envoy
+    ip_address: ENVOY_LOCAL_IP_ADDRESS
+```
+
+{% configuration %}
+ip_address:
+  description: The local IP Address of your Envoy
+  required: true
+  type: string
+monitored_conditions:
+  description: The list of conditions to monitor
+  required: false
+  type: list
+  keys:
+    production:
+      description: The power in W being produced by the solar panels
+    daily_production:
+      description: The energy in Wh produced that day
+    7_days_production:
+      description: The energy in Wh produced the last 7 days
+    lifetime_production:
+      description: The energy in Wh produced in the lifetime of the Envoy
+    consumption:
+      description: The power in W being consumed in the whole house
+    daily_consumption:
+      description: The energy in Wh consumed that day
+    7_days_consumption:
+      description: The energy in Wh consumed the last 7 days
+    lifetime_consumption:
+      description: The energy in Wh consumed in the lifetime of the Envoy
+{% endconfiguration %}