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Update powerwall.markdown description (#31604)

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Updated to better reflect the differences between the Powerwall Gateway device sensors and the Powerwall Battery devices and sensors.

Removed % charge description for each Powerwall battery device as this integration no longer provides that sensor (it was a calculated sensor).

Updated consistent descriptions for Power and Energy entities, including explanation of negative values.
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Mark Purcell 2024-02-27 16:35:53 +10:00 committed by GitHub
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@ -47,42 +47,41 @@ The following binary sensors are added for each Backup Gateway:
The following sensors are added for each Backup Gateway aggregated across all Powerwalls: The following sensors are added for each Backup Gateway aggregated across all Powerwalls:
- Powerwall Backup Reserve - Reserve energy for grid outages in % - Powerwall Backup Reserve - Reserve energy for grid outages in %
- Powerwall Battery Now - Usage in kW - Powerwall Battery Now - Power in kW (negative for charging)
- Powerwall Charge - Percent charge remaining in % - Powerwall Charge - Percent charge remaining in %
- Powerwall Generator Now - Usage in kW (if applicable) - Powerwall Generator Now - Power in kW (if applicable)
- Powerwall Load Now - Load usage in kW - Powerwall Load Now - Power in kW
- Powerwall Solar Now - Solar usage in kW (if applicable) - Powerwall Solar Now - Power in kW (if applicable)
- Powerwall Site Now - Site usage in kW - Powerwall Site Now - Power in kW (negative for grid export)
- Powerwall Backup Reserve - Percentage of battery which will be reserved for a grid outage - Powerwall Backup Reserve - Percentage of battery which will be reserved for a grid outage
- Frequency/ Average Current/ Average Voltage Now - Frequency/ Average Current/ Average Voltage Now - in Hertz, Amps and Volts
The following sensors show the direction of energy in aggregate: The following sensors measure lifetime energy flow:
- Powerwall Solar Export - Solar energy exported in kWh - Powerwall Solar Export - Solar energy exported in kWh
- Powerwall Solar Import - Solar energy imported in kWh - Powerwall Solar Import - Solar energy imported in kWh (generally near zero)
- Powerwall Site Export - Site energy exported in kWh - Powerwall Site Export - Site energy exported in kWh
- Powerwall Site Import - Site energy imported in kWh - Powerwall Site Import - Site energy imported in kWh
- Powerwall Battery Export - Battery energy exported in kWh - Powerwall Battery Export - Battery energy exported in kWh
- Powerwall Battery Import - Battery energy imported in kWh - Powerwall Battery Import - Battery energy imported in kWh
- Powerwall Load Export - Load energy exported in kWh - Powerwall Load Export - Load energy exported in kWh (generally zero)
- Powerwall Load Import - Load energy imported in kWh - Powerwall Load Import - Load energy imported in kWh
- Powerwall Generator Export - Generator energy exported in kWh - Powerwall Generator Export - Generator energy exported in kWh
- Powerwall Generator Import - Generator energy imported in kWh - Powerwall Generator Import - Generator energy imported in kWh
The following sensors are added for each Powerwall: A Powerwall battery device for each battery, connected to the Powerwall Gateway, with the following sensors:
- Powerwall Battery Capacity - Capacity in kWh - Powerwall Battery Capacity - Energy in kWh
- Powerwall Battery Remaining - Remaining capacity in kWh - Powerwall Battery Remaining - Remaining energy in kWh
- Frequency/ Average Current/ Average Voltage Now - Frequency/ Average Current/ Average Voltage Now in Hertz, Amps and Volts
- Powerwall Load Now - Load usage in kW - Powerwall Battery Power - Battery power in kW (negative for charging)
- Powerwall Battery Export - Battery energy exported in kWh - Powerwall Battery Export - Battery energy exported in kWh
- Powerwall Battery Import - Battery energy imported in kWh - Powerwall Battery Import - Battery energy imported in kWh
- Powerwall Charge - Percent charge remaining in % - Powerwall Grid State - Battery grid compliance
- Powerwall Grid State - State of grid power
### Switch ### Switch
The following switches are added for each Powerwall Backup Gateway: The following switch is added for the Powerwall Backup Gateway:
- Off-Grid operation - Take your Powerwall off-grid (simulate a grid outage) - Off-Grid operation - Take your Powerwall off-grid (simulate a grid outage)