Sessy Smart Battery
Home battery by Sessy. 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 | 1 integration for Sessy (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 Sessy battery | Source |
|---|---|---|
| Frank Energie Slim Stroom Handelen |
Supported “Ondersteund”
|
[source, 2026-10-19] |
| Tibber | Not listed Sessy 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 BatterijSturing |
Supported, with conditions “within Eneco offer; once service available”
Requires fixed/variable/VoordeelMomenten contract (not dynamic), solar panels, smart meter (per product terms PDF) |
[source, 2026-10-19] |
| ANWB Energie | Unknown know this? tell us | — |
| Vattenfall | Unknown know this? tell us | — |
Home Assistant integrations for Sessy
Brand-level match: these integrations target Sessy hardware; whether they cover the Sessy Smart Battery specifically is not verified.
| Integration | Type | Local / cloud | Source |
|---|---|---|---|
Sessy sessyHome Assistant integration for Sessy (Smart Energy Storage SYstem) |
HACS ★40 | Unknown know this? tell us | [HACS index, 2026-10-19] |
evcc details
| Template | sessy-smart-battery (meter; usages: battery) [source, 2026-10-19] |
|---|---|
| Connection | Local HTTP API (inferred) |
| Capabilities | battery-control [source, 2026-10-19] |
| Requirements | None listed in the evcc template. |
| 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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