GridFit

SolaX X3-Ultra

Hybrid inverter4 integration routes10 models on grid lists

Locallocal controlSolaX Power, SolaX Inverter Modbus· seen 2026-10-31
Grid✓✓✓✓✓✓fit in AT, BE, CZ, EE, NL, SE · lists dated up to 2026-10-30

Local controlGrid listsModel codes

Local control with Home Assistant and evcc

checked 2026-10-31

Home Assistant
localcontrol4 integrations
evcc
not found
Connection
Modbus TCP, Modbus RTU (RS485), HTTP / REST, Cloud API

Does SolaX X3-Ultra work locally with Home Assistant?

Yes, according to the public sources: the HA core integration “SolaX Power” and the HACS integration “SolaX Inverter Modbus” talk to it over the local network and expose settable entities, not only sensors.

Firmware updates can open or close local access — check the integration's own page before you buy, and your installer before software changes export limits or charges a battery from the grid.

Evidence: integrations and templates

IntegrationSourceLinkRead or controlConnectionRepoSeen
SolaX PowerHome Assistant corelocalread only sensors only (no settable entities found)HTTP / REST (local_polling)–2026-10-31
SolaX Inverter Modbus wills106/homeassistant-solax-modbusHACS custom integrationlocalcontrol settable entities: number, select, switch, buttonModbus TCP, Modbus RTU (RS485) (local_polling)★ 528 · 2026-10-282026-10-31
Solax Cloud API for Single and Multi Inverter Systems NoUsername10/Solax-Cloud-API-for-Home-assistantHACS custom integrationcloudcontrol settable entities: switchCloud API (cloud_polling)★ 11 · 2026-09-262026-10-31
Solax Developer API for Home Assistant NoUsername10/Solax-Developer-API-for-Home-assistantHACS custom integrationcloudcontrol settable entities: number, select, switch, buttonCloud API (cloud_polling)★ 2 · 2026-09-242026-10-31

Core integrations ship with Home Assistant. For the exact SolaX models that Home Assistant users report, see theOpen Home Foundation Device Database (preview) — GridFit does not copy it.

Grid-connection lists

The list is the authority; this is a cross-reference.

Is the SolaX X3-Ultra on an EU grid-connection list?

Yes — models of this family are on the lists of AT, BE, CZ, EE, NL, SE (lists dated up to 2026-10-30, read 2026-10-31); the other 1 of the 7 lists read have no matching model, which is not a “no”.

  • ATAustria — listed “Ja” · 10 rows · Austrian TOR Erzeuger Typ A list dated 2026-10-30, read 2026-10-31✓
  • BEBelgium — listed · 10 rows · Belgian Synergrid C10/26 list dated 2026-10-30, read 2026-10-31✓
  • CZCzechia — listed · approved firmware DS: 2.07 (ARM: 2.03) · 6 rows · Czech ČEZ Distribuce list dated 2026-08-21, read 2026-10-31✓
  • EEEstonia — listed · 7 rows · Estonian Elektrilevi inverter list, read 2026-10-31✓
  • NLNetherlands — listed · 10 rows · Dutch Netbeheer Nederland type-A list dated 2026-10-30, read 2026-10-31✓
  • PLPoland — Not found on the list · Polish PTPiREE WiPWC 1.3 list dated 2026-10-26, read 2026-10-31
  • SESweden — listed · firmware DSP:2.07, ARM:2.03 · 5 rows · Swedish Rikta Rätt inverter list dated 2026-10-23, read 2026-10-31✓
36 more countries: what applies to a hybrid inverter there

No model rows for these countries — they publish no usable list, or GridFit has not parsed it yet. The state comes from the EU+ grid-connection table; each country page says more.

On a public list:GermanysDenmark?Great BritainHungaryIrelandNorthern Ireland?PortugalRomania?Slovakia

No list, a rule applies:Bosnia and Herzegovina?SwitzerlandCyprusSpainFinlandFrancesGreecesCroatiasItalysLiechtenstein?LithuaniaLuxembourgMoldova?NorwaySloveniasTürkiye?

Not confirmed:Albania?Bulgaria?Georgia?Iceland?Latvia?Montenegro?North Macedonia?Malta?Serbia?Ukraine?Kosovo?

s = from search results, ? = unverified; without a mark the page was opened.

Model codes on the lists

Matched to this family by model-code pattern (brand match alias) — a pointer; confirm in the list. Hover a cell for the list's own words.

Model, as the list writes itATBECZEENLPLSEMPPTkWMatch
X3-ULT-10K-GLV✓✓––alias
X3-ULT-15K✓✓✓✓✓2✓––alias
X3-ULT-15K-GLV✓✓––alias
X3-ULT-15KP✓✓✓✓✓––alias
X3-ULT-19.9K✓✓✓✓2––alias
X3-ULT-20K✓✓✓✓✓2✓––alias
X3-ULT-20KP✓✓✓✓––alias
X3-ULT-25K✓✓✓✓✓2✓––alias
X3-ULT-25KW✓✓––alias
X3-ULT-30K✓✓✓✓✓2✓––alias

How old the evidence is

Last 12 months. ◂ = older than the axis.

SourceDate
Sources read by GridFit2026-10-31
EE list dated2026-10-31
NL list dated2026-10-30
BE list dated2026-10-30
AT list dated2026-10-30
SolaX Inverter Modbus — last release/commit2026-10-28
SE list dated2026-10-23
Solax Cloud API for Single and Multi Inverter Systems — last release/commit2026-09-26
Solax Developer API for Home Assistant — last release/commit2026-09-24
CZ list dated2026-08-21

Something wrong for your device? Fix the row