Tesla Powerwall (Fleet API)
Home battery by Tesla. Compatibility with energy supplier apps, Home Assistant and evcc.
At a glance
| Device type | Home battery [evcc template, 2026-10-19] |
|---|---|
| evcc support | Yes |
| Connection | Local HTTP API (inferred from evcc template parameters) [evcc template, 2026-10-19] |
| Local control (no cloud) | Yes via evcc's connection type [evcc template, 2026-10-19] |
| Home Assistant | 3 integrations for Tesla (brand-level, see below) [first source, 2026-10-19] |
| Known firmware notes | Unknown know this? tell us |
Energy supplier apps
Supplier lists are published per brand (sometimes with model conditions). A brand match does not guarantee your exact model works — check the linked page or the supplier's app.
| Supplier / service | Status for Tesla battery | Source |
|---|---|---|
| Frank Energie | Not listed Tesla is not on Frank Energie's battery list | [source, 2026-10-19] |
| Tibber | Not listed Tesla is not on Tibber's battery list | [source, 2026-10-19] |
| Zonneplan | Not listed Zonneplan only lists its own hardware | [source, 2026-10-19] |
| Eneco | Not listed Tesla is not on Eneco's battery list | [source, 2026-10-19] |
| ANWB Energie | Unknown know this? tell us | — |
| Vattenfall | Unknown know this? tell us | — |
Home Assistant integrations for Tesla
Brand-level match: these integrations target Tesla hardware; whether they cover the Powerwall (Fleet API) specifically is not verified.
| Integration | Type | Local / cloud | Source |
|---|---|---|---|
Tesla Powerwall powerwall |
Core | local_polling | [manifest, 2026-10-19] |
Tesla Wall Connector tesla_wall_connector |
Core | local_polling | [manifest, 2026-10-19] |
Tesla Fleet tesla_fleet |
Core | cloud_polling | [manifest, 2026-10-19] |
evcc details
| Template | tesla-powerwall-fleet (meter; usages: battery) [source, 2026-10-19] |
|---|---|
| Connection | Local HTTP API (inferred) |
| Capabilities | battery-control [source, 2026-10-19] |
| Requirements | Tesla offers an official, but paid Fleet API.
For private use, you can create a Tesla Developer Account at [developer.tesla.com](https://developer.tesla.com/) and receive a monthly API credit of $10.
The [myteslamate.com](https://www.myteslamate.com/tesla-api-application-registration/) guide explains the process and generates a free Access and Refresh Token.
With this token pair and your Client ID created in the Tesla Developer Account, evcc can directly communicate with the Tesla Fleet API. [source, 2026-10-19] |
| Known caveats | None listed in the evcc template. |
“Works for me” reports
No user reports yet. Report your firmware version and setup TODO: form
Where to buy
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