A python3 library to access the data of solar watt devices via local api
Disclaimer: This library uses an unofficial local api and could therefore break at any point

The package uses the kiwigrid api provided by your solar watt energy manager device.
Data available:

• Real time power values from inverter, AC sensor and battery (if exists)
• Long term energy statistics

This library does some preprocessing by extracting relevant fields and grouping them by device class.
For now this mostly includes data I deem usefully for the integration with home assistant.

Note: Polling the energy manager with a very high interval often could lead to reliability issues (untested).

As I only have access to one installation and the api is as far as I'm aware not documented by SolarWatt, I can not guarantee that this library works with your setup.
If you encounter issues with your concrete setup, feel free to open a new issue.
The raw json data is available via http://YOUR_DEVICE_IP/rest/kiwigrid/wizard/devices
If you can provide the raw json dump, I can try to add support for your device.
Important Note: This data does contain some sensitive information (especially for the "Location" device), so make sure to remove any sensitive data before sharing.

pip install LocalSolarWatt

from local_solar_watt import EnergyManagerApi, EnergyManagerVersion

# create a new api object
energy_api = EnergyManagerApi(EnergyManagerVersion.CLASSIC, "<host_or_ip>")

# create a new api object for new energy manager flex
energy_api = EnergyManagerApi(EnergyManagerVersion.FLEX, "<host_or_ip>")

# optional, change work units to Wh instead of kWh
api = EnergyManagerApi(EnergyManagerVersion.CLASSIC, "<host_or_ip>", work_unit=WorkUnits.Wh)

# with custom logger
my_logger = logging.getLogger("my_logger")
energy_api = EnergyManagerApi(EnergyManagerVersion.CLASSIC, "<host_or_ip>", logger=my_logger)

# test the connection (returns bool based on success)
status = api.test_connection()

# pull data from the device (returns only selected power values, grouped by device class)
print(api.fetch_data())

Project uses uv for dependency management.

Rudimentary unit tests are included in the tests folder. These use static data from j́son files and do not require a connection to the device.