Jepp - you are completely right.
The power-flow-card-plus card is MUCH MUCH MORE simpler then the Tesla card and therefore much more reliable.
- type: custom:power-flow-card-plus
title: Power Flow - Now
min_flow_rate: 3
max_flow_rate: 10
watt_threshold: 7800
kw_decimals: 3
w_decimals: 0
clickable_entities: true
dashboard_link: /energy
entities:
home:
entity: sensor.house_consumption_power
solar:
entity: sensor.inverter_input_power
battery:
entity: sensor.battery_charge_discharge_power
state_of_charge: sensor.battery_state_of_capacity
color_circle: true
grid:
entity: sensor.power_meter_active_power
fossil_fuel_percentage:
entity: sensor.co2_signal_grid_fossil_fuel_percentage
icon: mdi:pine-tree
color_icon: true
display_zero: true
name: Low-carbon
state_type: power
inverted_entities: grid,battery
For me there is only the need for one additional sensor:
# ########## Start: Power Flow Card ##########
# custom:power-flow-card
# https://github.com/ulic75/power-flow-card
#
# or with some improvements
# custom:system-energy-flow-card-plus
# https://github.com/flixlix/power-flow-card-plus
#
# solar : sensor.inverter_input_power
# battery : sensor.battery_charge_discharge_power
# grid : sensor.power_meter_active_power
# house : house_consumption_power
# load (FusionSolar) : house_consumption_power
#
- name: house_consumption_power
unique_id: house_consumption_power
#friendly_name: "Power meter House power"
state_class: measurement
device_class: power
unit_of_measurement: "W"
icon: mdi:solar-power
state: >-
{% set inv_input_power = states('sensor.inverter_input_power')|float(0) %}
{% set bat_charge_discharge_power = states('sensor.battery_charge_discharge_power')|float(0) %}
{% set pm_active_power = states('sensor.power_meter_active_power')|float(0) %}
{{ (inv_input_power - bat_charge_discharge_power - pm_active_power)|float(0)|round(0) }}
availability: >-
{{ (states('sensor.inverter_input_power')|is_number)
and (states('sensor.battery_charge_discharge_power')|is_number)
and (states('sensor.power_meter_active_power')|is_number) }}
#
# ########## End: Power Flow Card ##########