i am actually planning to install a SMA Sunny Tripower Smart Energy solar inverter.
As i already own a smart meter from our local electricity provider and get the relevant data via mqtt into home assistant. I wondered if it is possible to run it without installing a Sunny Home Manager 2.0 or SMA Energy Meter. Additionally i would like to install a SMA Home Storage battery - SMA Home Storage battery | SMA Solar
My plan is to do all the automation in Home Assistant, like loading the battery. Loading my EV (honda e), unloading the battery in the night etc.
Has anyone an idea if this is possible without installing a Sunny Home Manager 2.0 or SMA Energy Meter?
I’m pretty sure that’s not possible, as the inverter actually communicates with the SHM or energy meter to know what the inverter should do, charge/discharge battery based on grid consumption or production
It ist possible using modbus. As Home Assistant works on 1 second time slots the charge and discharge regulation produces more overshoots than the 200ms SMA control. Results in somewhat higher regulation “losses”, aka discharge to the grid. Otherweise works fine for half a year now.
True but as written in my i inital post, i am already owning a smart meter from our local electricity provider, where i am able to read out all the relevant data.
I have a sunnyboy inverter and read all data with integration + modbus.
I can even set a limit that seems to work.
but I cannot read the current limit that is set. what do i wrong?
my code:
# SMA inverter logging modbus TCP/IP
#
# Revision: v1.01 18/5/2024
modbus:
- name: SMA1
type: tcp
host: 192.168.0.80 ## or create !secret inverter_ip with ip adress
port: 502
delay: 5
message_wait_milliseconds: 600
timeout: 5
sensors:
- name: SMA Actueel
unique_id: sma_actueel
unit_of_measurement: W
slave: 3
address: 30775
input_type: input
data_type: int32
min_value: 0
device_class: power
state_class: measurement
- name: SMA_Grens
unique_id: SMA_Grens
unit_of_measurement: W
slave: 3
address: 31405
input_type: input
data_type: int32
min_value: 0
device_class: power
state_class: measurement
- name: SMA Vandaag
unique_id: sma_vandaag
unit_of_measurement: kWh
scale: 0.001
precision: 3
slave: 3
address: 30517
data_type: int64
min_value: 0
device_class: energy
state_class: total_increasing
- name: SMA Totaal
unique_id: sma_totaal
unit_of_measurement: kWh
slave: 3
address: 30531
input_type: input
scale: 1.0
precision: 0
data_type: int32
min_value: 0
device_class: energy
state_class: total_increasing
- name: SMA AC Spanning
unique_id: sma_ac_spanning
unit_of_measurement: V
slave: 3
address: 30783
input_type: input
scale: 0.01
precision: 2
data_type: int32
min_value: 0
device_class: voltage
state_class: measurement
- name: SMA AC Frequentie
unique_id: sma_ac_frequentie
unit_of_measurement: Hz
slave: 3
address: 30803
input_type: input
scale: 0.01
precision: 2
data_type: int32
min_value: 0
device_class: frequency
state_class: measurement
- name: SMA DC Spanning 1
unique_id: sma_dc_spanning_1
unit_of_measurement: V
slave: 3
address: 30771
input_type: input
scale: 0.01
precision: 1
data_type: int32
min_value: 0
device_class: voltage
state_class: measurement
- name: SMA DC Stroom 1
unique_id: sma_dc_stroom_1
unit_of_measurement: A
slave: 3
address: 30769
input_type: input
scale: 0.001
precision: 2
data_type: int32
min_value: 0
device_class: current
state_class: measurement
- name: SMA DC Power 1
unique_id: sma_dc_power_1
unit_of_measurement: W
slave: 3
address: 30773
input_type: input
data_type: int32
min_value: 0
device_class: power
state_class: measurement
- name: SMA DC Spanning 2
unique_id: sma_dc_spanning_2
unit_of_measurement: V
slave: 3
address: 30959
input_type: input
scale: 0.01
precision: 1
data_type: int32
min_value: 0
device_class: voltage
state_class: measurement
- name: SMA DC Stroom 2
unique_id: sma_dc_stroom_2
unit_of_measurement: A
slave: 3
address: 30957
input_type: input
scale: 0.001
precision: 2
data_type: int32
min_value: 0
device_class: current
state_class: measurement
- name: SMA DC Power 2
unique_id: sma_dc_power_2
unit_of_measurement: W
slave: 3
address: 30961
input_type: input
data_type: int32
min_value: 0
device_class: power
state_class: measurement
- name: SMA temperatuur
unique_id: sma_temperatuur
unit_of_measurement: °C
slave: 3
address: 30953
input_type: input
scale: 0.1
precision: 1
data_type: int32
min_value: 0
device_class: temperature
state_class: measurement
- name: SMA isolatieweerstand
unique_id: sma_isolatieweerstand
unit_of_measurement: Ohm
slave: 3
address: 30225
input_type: input
scale: 0.001
precision: 0
data_type: int32
min_value: 0
## device_class: resistance
state_class: measurement
- name: SMA aardlekkage
unique_id: sma_aardlekkage
unit_of_measurement: A
slave: 3
address: 31247
input_type: input
scale: 0.001
precision: 3
data_type: int32
min_value: 0
device_class: current
state_class: measurement
- name: SMA status
unique_id: sma_status
slave: 3
address: 30201
data_type: int32
- name: SMA grid
unique_id: sma_grid
slave: 3
address: 30217
data_type: uint32
- name: SMA limit percent
unique_id: sma_limit_percent
unit_of_measurement: "%"
slave: 3
address: 41255
input_type: holding
data_type: int16
min_value: 0
scale: 0.01
precision: 0
state_class: measurement
##holding
- name: SMA_limiet
unique_id: SMA_limiet
unit_of_measurement: "%"
slave: 3
address: 41255
input_type: holding
data_type: int16
min_value: 0
scale: 0.01
precision: 0
state_class: measurement
sensor:
- platform: template
sensors:
sma_power:
friendly_name: 'Power'
value_template: >-
{% if states('sensor.sma_actueel')|float < 0 or states('sensor.sma_actueel')|float > 10000 %}
0
{% else %}
{{ states('sensor.sma_actueel') }}
{% endif %}
unit_of_measurement: "W"
icon_template: mdi:flash
unique_id: sma_power
- platform: template
sensors:
sma_energie_vandaag:
friendly_name: 'Energie vandaag'
value_template: >-
{% if states('sensor.sma_vandaag')|float < 0 or states('sensor.sma_vandaag')|float > 10000 %}
0
{% else %}
{{ states('sensor.sma_vandaag') }}
{% endif %}
unit_of_measurement: "kWh"
icon_template: mdi:weather-sunny
unique_id: sma_energie_vandaag
sma_inverter_status:
friendly_name: 'Omvormer Status'
value_template: >-
{% if is_state('sensor.sma_status', '307' ) %}
OK
{% elif is_state('sensor.sma_status', '303' ) %}
Uit
{% elif is_state('sensor.sma_status', '455' ) %}
Waarschuwing
{% elif is_state('sensor.sma_status', '35' ) %}
Fout
{% endif %}
icon_template: mdi:state-machine
unique_id: sma_inverter_status
sma_grid_contactor:
friendly_name: 'Grid relais'
value_template: >-
{% if is_state('sensor.sma_grid', '51' ) %}
Gesloten
{% else %}
Open
{% endif %}
icon_template: mdi:connection
unique_id: sma_grid_connector
input_number:
sma_power_limit_slider:
name: SMA Power Limiet Slider
initial: 100
min: 0
max: 100
step: 1
unit_of_measurement: "%"
### or use:
#automation:
# alias: Power Limit
# description: ''
# trigger:
# - platform: state
# entity_id: input_number.sma_power_limit_slider
# condition: []
# action:
# - service: modbus.write_register
# data:
# address: 40023
# slave: 3
# value: '{{ states("input_number.sma_power_limit_slider") |int *100 }}'
# hub: SMA1 # unique name
# mode: single
