Kostal Plenticore Solar Inverter
kostal_plenticore
The Kostal Plenticore integration allows you to get data from Kostal Plenticore solar inverters and integrate them into your Home Assistant installation. It allows you also to change some of settings values of the inverter.
In Apple Home through HomeKit Bridge
What HomeKit Bridge makes of each kind of entity this integration creates, read from its source code. A device only gets the ones that apply to it.
| Entity | Shows up as | Note |
|---|---|---|
switch | Switch or outlet | |
select | Mode picker (as switches) |
What people report
Kostal Plenticore inverters connect locally, but G3 firmware 3.07.03 (October 2026) rejects single-setting API requests and broke setup; a fix PR is open.
- Works1
- Not working1
| Device | In Home Assistant | In Apple Home | What they said | Source |
|---|---|---|---|---|
| Kostal Plenticore inverters | Works Local | Active power limit and installer login with manual charge switch addedSaved copyProposed change <!-- Describe the big picture of your changes here to communicate to the maintainers why we should accept this pull request. If it fixes a bug or resolves a feature request, Excerpt saved from GitHub on 2026-10-23. | PR #164674 · 2026-03 | |
| Kostal Plenticore G3 (firmware 3.07.03.27419) | Not working Local | Cannot connect after October 2026 firmware; single-setting requests return 404; fix PR openSaved copyThe problem I can't connect to the solar inverter after KOSTAL_Update_PLENTICORE_G3_3.07.03.27419 on October 14th. The days before it was possible. After inserting IP and password I get the error: Unexpected exception ### What version of Home Assistant Core has the issue? core-2026.10.1 ### What was the last working version of Home Assistant Core? _No response_ ### What type of installation are you running? Home Assistant OS ### Integration causing the issue kostal_plenticore ### Link to integration documentation on our website _No response_ ### Diagnostics information Tested with … Excerpt saved from GitHub on 2026-10-23. | Issue #186638 · 2026-10 |
Gathered from GitHub issues, pull requests, discussions and docs, and from r/homeassistant. These are individual reports, so check the linked thread and the date before you buy.
How it connects
Local polling
Talks to the device on your network, asking it for updates every so often.
Details
| Installs (analytics) | 2,383 (0.34%) |
|---|---|
| Added in | Home Assistant 2021.5 |
| Set up in the UI | Yes |
| Maintainers | @stegm |
In ReReHome
Whatever HomeKit Bridge shares reaches Apple Home as normal HomeKit accessories behind your Home Assistant bridge, so ReReHome shows and controls them like any other.
Bridges get their own settings page listing the accessories behind them.
