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Welcome to the "Huawei Solar HEMS" Wiki!

For installation follow all prerequisites and installation guides stricly!

• Step by step.

Notes:

The provided custom template sensors are based on a Huawei Solar setup with one inverter and two batteries. This is reflected throughout the README and these Wiki Pages.

Table of Contents

• Home
  • Welcome
  • Table of Contents
  • Overview of used Sensors
  • Flows, Definitions and Calculations
  • Supporting staff
    • PVGIS
• Installation
  • General
  • Prerequisites
    • Environment
    • Advanced configuration
      • Editing configuration.yaml
      • Validating the configuration
      • Reloading the configuration to apply changes
      • Troubleshooting the configuration
    • HACS
    • Add-ons
      • Energy Management for Home Assistant (EMHASS)
        • Introduction
        • Forecast data
        • Optimization plan
          • Check points
          • Dependencies
          • Setup
          • Automation
          • Logs
        • Configuration parameters
        • Home Assistant (HA) integration
        • Deferrable Load
        • Electricity spot price forecast
        • PV power production forecast
        • Huawei Smart Energy Controller
        • Huawei Smart String ESS
    • Integrations
      • Huawei Solar
      • Solcast
      • EPEXSpot
      • Sun2
      • Multiscrape
      • Electricity Maps
      • RESTful
      • Season
    • Lovelace Cards
    • Custom Sensors

Overview of used Sensors

Flows, Definitions and Calculations

The diagram and the table below shows the definitions and calculations used for the power- and energy flows between the Solar PV, House, Batteries, and Grid. These definitions are used in the naming convention of the custom template sensors included in the "Huawei Solar HEMS packages".

Dashboard: Level 6

Reg	Sensor	Unit	Calculation
32016	Inverter_PV_1_Voltage	V
32017	Inverter_PV_1_Current	A
	Inverter_PV_1_Power	W	= [32016] * [32017]
32018	Inverter_PV_2_Voltage	V
32019	Inverter_PV_2_Current	A
	Inverter_PV_2_Power	W	= [32018] * [32019]
	Inverter_PV_Power pv_power	W	= pv_1_power * pv_2_power = [32016] * [32017] + [32018] * [32019]
32064	Inverter_Input_Power inv_in_power	W
	Inverter_Input_Power_Corrected 1	W	= [32064]*n
32080	Inverter_Active_Power inv_active_power	W	In(-), Out(+)
37765	Batteries_Charge_Discharge_Power	W	= bat_active_power = inv_in_power - inv_active_power In(+), Out(-)
	Batteries_Active_Power bat_active_power	W	= inv_in_power - inv_active_power = [32064] - [32080] In(+), Out(-)
	Batteries_Charge_Power	W	= max(0, [32064] - [32080])
	Batteries_Charge_Power_Average_last_30mins	W	= statistics(max(0, [32064] - [32080], mean, 0.5h)
	Batteries_Charge_from_Grid_Power inv_in_grid_power	W	= -min(0, inv_active_power) = -min(0, [32080])
	Batteries_Discharge_Power	W	= -min(0, [32064] - [32080])
	Batteries_Discharge_Power_Average_last_24h	W	= statistics(-min(0, [32064] - [32080]), mean, 24h)
37113	Power_Meter_Active_Power pm_active_power	W	In(-), Out(+)
	Grid_Import_Power	W	= -min(0, [37113])
	Grid_Export_Power	W	= max(0, [37113])
	House_Consumption_Power	W	= inv_in_power - bat_active_power - pm_active_power = inv_in_power - (inv_in_power - inv_active_power) - pm_active_power = inv_active_power - pm_active_power = [32080] - [37113]
32108	Inverter_Total_DC_Input_Energy PV_Yield	kWh	= pv_yield_strings
	PV_Yield_Quarter_Hourly PV_Yield_Hourly PV_Yield_Daily	kWh	= UM(pv_yield) = UM([32108])
	PV_Yield_Strings	kWh	= integration(pv_power, left) = integration([32016] * [32017] + [32018] * [32019], left)
	PV_Yield_Strings_Quarter_Hourly PV_Yield_Strings_Hourly PV_Yield_Strings_Daily	kWh	= UM(pv_yield_strings)
	Solar_Yield 3 inv_in_solar	kWh	= integration(inv_in_power, left) = integration([32064], left)
	Solar_Yield_Quarter_Hourly Solar_Yield_Hourly Solar_Yield_Daily	kWh	= UM([3 solar_yield])
	FusionSolar_Yield_Total	kWh	= inv_out + Batteries_Total_Charge - Batteries_Total_Discharge = [32106] + [37066] - [37068]
	FusionSolar_Yield_Daily	kWh	= [32114] + [37015] - [37017]
32106	Inverter_Total_Yield inv_out	kWh
	Inverter_Yield_Quarter_Hourly Inverter_Yield_Hourly Inverter_Yield_Weekly Inverter_Yield_Monthly Inverter_Yield_Yearly	kWh	= UM([32106])
32114	Inverter_Daily_Yield	kWh
37119	Power_Meter_Exported grid_out	kWh
	Power_Meter_Exported_Energy_Daily Power_Meter_Exported_Energy_Weekly Power_Meter_Exported_Energy_Monthly Power_Meter_Exported_Energy_Yearly	kWh	= UM([37119])
37121	Power_Meter_Consumption grid_in	kWh
	Power_Meter_Consumption_Energy_Hourly Power_Meter_Consumption_Energy_Daily Power_Meter_Consumption_Energy_Weekly Power_Meter_Consumption_Energy_Monthly Power_Meter_Consumption_Energy_Yearly	kWh	= UM([37121])
37066	Batteries_Total_Charge	kWh
	Batteries_Charge_from_Grid_Energy_Total inv_in_grid	kWh	= integration(inv_in_grid_power, left)
	Batteries_Charge_from_Grid_Energy_Daily	kWh	= UM(inv_in_grid)
37068	Batteries_Total_Discharge	kWh
37015	Batteries_Day_Charge	kWh
	Batteries_Day_Charge_with_Loss bat_in	kWh	= [37015] + 5 bat_in_loss
37017	Batteries_Day_Discharge	kWh
	Batteries_Day_Discharge_with_Loss bat_out	kWh	= [37017] - 6 bat_out_loss
	Inverter_Loss_Daily 4	kWh	= 5 bat_in_loss + 6 bat_out_loss = Solar_Yield_Daily + [37017] - [37015] - [32114]
	Batteries_Charge_Loss_Daily 5 bat_in_loss	kWh	if([37765] >= 0) = 4 inverter_loss - 6 bat_out_loss
	Batteries_Discharge_Loss_Daily 6 bat_out_loss	kWh	if([37765] < 0) = 4 inverter_loss - 5 bat_in_loss
	House_Consumption_Energy_Total house_in	kWh	= inv_out + grid_in - gid_out - inv_in_grid = [32106] + [37121] - [37119] - inv_in_grid
	House_Consumption_Energy_Weekly House_Consumption_Energy_Monthly House_Consumption_Energy_yearly	kWh	= UM(house_in)
	House_Consumption_Energy_Daily	kWh	= [32114] + UM([37121]) - UM([37119] - UM(inv_in_grid) )
	House_Consumption_Solar_Energy_Daily house_consumption_solar	kWh	= inv_in_solar + inv_in_grid - bat_in - grid_out
	Solar_Yield_Self_Use_Total Inverter_Yield_Self_Use_Total	kWh	= inv_out - gid_out - inv_in_grid = [32106] - [37119] - inv_in_grid
	Inverter_Yield_Self_Use_Daily	kWh	= [32114] - UM([37119]) - UM(inv_in_grid)
37760	Batteries_State_of_Capacity bat_soc	%
37758	Batteries_Rated_Capacity	Wh
	Batteries_Rated_Charge_Energy	kWh	= [37758] * 1.15
	Batteries_State_of_Capacity_Energy bat_soc_energy	kWh	= [37758] * 1.15 * [37760] / 100
	Batteries_State_of_Capacity_remaining_Charge_Energy	kWh	= [37758] * 1.15 * (1 - [37760] / 100)
	Batteries_State_of_Capacity_remaining_Charge_Time	h	= bat_soc_energy_remaining / bat_charge_power_average_last_30mins / 1000
	Batteries_State_of_Capacity_remaining_Discharge_Time	h	= bat_soc_energy / bat_discharge_power_average_last_24h / 1000
	Solar_Yield_Self_Sufficiency_Total House_Self_Sufficiency_Total	%	= self_use / house_in = ( inv_out - gid_out - inv_in_grid ) / ( inv_out + grid_in - gid_out - inv_in_grid ) = ( [32106] - [37119]  - inv_in_grid ) / ( [32106] + [37121] - [37119] - inv_in_grid )
	House_Self_Sufficiency_Daily	%	= ( [32114] - UM([37119]) - inv_in_grid ) / ( [32114] + UM([37121]) - UM([37119]) - UM(inv_in_grid) )
32087	Inverter_Internal_Temperature	°C
	Inverter_Efficiency_Daily	%
	Inverter_Efficiency_Average	%

Supporting staff

• PVGIS