Energa Storage

This Home Assistant integration allows detailed monitoring of your energy storage system using data you provide. It does not collect data itself; instead, it calculates and tracks:

• Current energy stored in the buffer
• Energy deficits
• Energy losses
• Energy accumulated in the current billing period
• The oldest energy that will expire in the next billing period

You need to supply energy readings using another integration. This integration works seamlessly with hass-energa-my-meter. Many thanks to @thedeemling, the project’s author, for enabling effortless and reliable data collection.

Installation

This integration is installed via HACS:

1. In Home Assistant, go to HACS → Integrations → Custom Repositories.
2. Enter the repository URL: https://github.com/catgiggle/HomeAssistant-EnergaStorage.
3. Set the type to Integration and click Add.
4. Install the integration through HACS.
5. Restart Home Assistant.
6. The integration will appear under Configuration → Integrations.

Configuration

You can add multiple instances of this integration. Each instance has the following parameters:

Parameter	Description
Display name	Display name for the instance (shown in Home Assistant UI).
Internal name	Prefix for all sensor identifiers for this instance. Should be unique per instance.
Exported energy sensor	Sensor reporting energy exported to storage.
Imported energy sensor	Sensor reporting energy imported from storage.

Important: Removing an instance does not delete collected data. Re-adding an instance with the same Internal name restores previous data. The Internal name is also displayed as the device serial number in the UI.

Features

• Tracks energy stored in the buffer.
• Calculates energy deficits and energy losses.
• Reports accumulated energy in the current billing period.
• Shows the oldest energy that will expire in the next billing period.
• Compatible with energy readings from other sensors/integrations.
• Can be used to generate statistics and automation triggers in Home Assistant.

Other Statistics

Combine this integration with the utility_meter component to track additional statistics, such as daily energy usage:

utility_meter:
  daily_energy:
    source: sensor.my_storage_virtual_buffer_total
    cycle: daily

This allows you to monitor how much energy is added to or lost from the buffer each day.