Solar panel installation. Which Inverter?

Feature Requests
37

Alright, here is a simple configuration (Home Assistant 0.87.0.dev0, power-wheel-card from dev branch from today):

I assume that your Envoy-S is already set up and working:

  - platform: enphase_envoy
    ip_address: <Envoy-S IP Address>

Next, you will need to create 2 additional template sensors to calculate the currently exported/imported electricity:

  - platform: template
    sensors:
      exporting:
        friendly_name: "Current Energy Exporting"
        value_template: "{{ [0, (states('sensor.envoy_current_energy_production') | int - states('sensor.envoy_current_energy_consumption') | int)] | max }}"
        unit_of_measurement: 'W'
        icon_template: 'mdi:flash'
      importing:
        friendly_name: "Current Energy Importing"
        value_template: "{{ [0, (states('sensor.envoy_current_energy_consumption') | int - states('sensor.envoy_current_energy_production') | int)] | max }}"
        unit_of_measurement: 'W'
        icon_template: 'mdi:flash'

And then the Lovelace configuration (using the editor in the UI) looks like this:

grid_power_consumption_entity: sensor.importing
grid_power_production_entity: sensor.exporting
solar_power_entity: sensor.envoy_current_energy_production
title_power: Power distribution
type: 'custom:power-wheel-card'

Et voilà, this is how all that looks like:

envoy-s-power-distribution-card
envoy-s-power-distribution-card1006×1108 43.5 KB

I see - I haven’t been part of that journey myself, but I agree that the cost view may be a bit too much, and it wouldn’t work for me anyway because I pay more when buying electricity than I am being reimbursed when selling electricity.

I guess the question would be if it is more desirable to have a generic card that works with many inverters, smart metres, etc. and thus likely requires to add some template sensors to calculate intermediate values, or instead have a card just for a single platform such as the Envoy-S that calculates all the required values under the hood.

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