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SolarMax MAX.STORAGE / MAX.STORAGE Ultimate

Hybrid inverter (PV + battery) by SolarMax. Compatibility with energy supplier apps, Home Assistant and evcc.

At a glance

Device typeHybrid inverter (PV + battery) [evcc template, 2026-10-19]
evcc supportYes
solarmax-maxstorage (Modbus TCP) [evcc template, 2026-10-19]
ConnectionModbus TCP (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 AssistantUnknown know this? tell us (brand not yet checked)
Known firmware notes
For batter control, the "Connectivity+" function must be activated via the Solarmax support. Available from software version 3.4.4. Without activation, the function remains without effect. [evcc template, 2026-10-19]

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 / serviceStatus for SolarMax hybrid inverterSource
Frank Energie
Slim Stroom Handelen
Via EMS / partner box “Via Eniris”
[source, 2026-10-19]
Tibber Not listed SolarMax is not on Tibber's battery / inverter list [source, 2026-10-19]
Zonneplan Not listed Zonneplan only lists its own hardware [source, 2026-10-19]
Eneco Unknown know this? tell us —
ANWB Energie Unknown know this? tell us —
Vattenfall Unknown know this? tell us —

Home Assistant integrations for SolarMax

Unknown know this? tell us — we have not yet checked Home Assistant support for SolarMax.

evcc details

Templatesolarmax-maxstorage (meter; usages: grid, pv, battery) [source, 2026-10-19]
ConnectionModbus TCP (inferred)
Capabilitiesbattery-control [source, 2026-10-19]
Requirements
For batter control, the "Connectivity+" function must be activated via the Solarmax support. Available from software version 3.4.4. Without activation, the function remains without effect.
[source, 2026-10-19]
Known caveatsNone 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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