Is my inverter fit for the grid operator's list in Czechia?Is my wallbox fit for the grid in Czechia?
Does my inverter work locally with Home Assistant and evcc? — the two marks at the right of each row
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✓ fit: on the list✓ fit by the maker's document — the grid operator decides✕ not fit: refused, expired or not allowed nothing known — never “not approved”Hover or focus a cell for the list's own word, a condition or date, firmware and the row.
Column head: list = the country has a public list · cert. = no list, the grid operator checks the maker's certificate · — = nothing to check for this class.Local = the best route on your network: control / read / cloud / brand route.Smart home = who talks to it, Home Assistant then evcc, each mark coloured by its own route: local control · local, read only · cloud only · brand route, model unconfirmed · empty = not found. Marks are GridFit's own glyphs, not the projects' logos.
Phases and rated power (kVA) come from the Austrian, Swedish and Belgian lists. No list carries MPPT counts: those are the makers' own datasheets, read so far for Deye, Fronius, GoodWe, Kostal, SMA (model codes exactly as the sheet writes them); “–” means not collected, never “none”. The list is the authority; this is a cross-reference.
Czechia: public list
821 rows · 784 models · 540 also on another country's list
The grid operators publish a list of accepted models.
What applies per device class
EU+ grid-connection table, 2026-10-29
| Device class | What applies | Checked |
|---|---|---|
| PV inverter | on a public list — a public list covers this class; check the model there | page opened |
| Hybrid inverter | on a public list — a public list covers this class; check the model there | page opened |
| Battery / AC inverter | on a public list — a public list covers this class; check the model there | page opened |
| Plug-in solar / battery (≤ 800 VA) | no list, a rule applies — no list, but a notification, registration or certificate rule applies — ask the grid operator | from search results |
| Wallbox / EV charger | no list and no model-level rule — no list and no model-level rule: nothing to check against a list | page opened |
Seznam schválených střídačů a otestovaných ochran
- Published by
- ČEZ Distribuce (evidence from EG.D and ČEZd lab protocols and SZÚ certificates)
- Basis
- NC RfG via PPDS Příloha 4 and the MPO methodology 2023.
- Is it a gate?
- Yes at ČEZ Distribuce for A1/A2 units since 2025-01-01.
- What it contains
- Inverters and storage units with the approved firmware, the settings profile, the kind of evidence (certificate or protocol and its issuer) and the date of entry. No certificate numbers.
- Reuse terms
- No reuse terms are stated ("Všechna práva vyhrazena").
- What we show
- firmware, evidence type and date of entry per row, with a link to the list.
- List dated
- 2026-08-21
- Downloaded
- 2026-10-31
- Rows read
- 821
In numbers
821 rows; 784 inverters, batteries, plug-in units and chargers after joining spellings, of which540 also appear in at least one other country's list.
| Device class | Models |
|---|---|
| PV inverter | 406 |
| Hybrid inverter | 366 |
| Plug-in solar / battery (≤ 800 VA) | 10 |
| Battery / AC inverter | 2 |
Status words, as the list writes them
| Word | Rows |
|---|---|
| listed | 821 |
Brands with the most models here
Fronius 75SolaX 69Growatt 52Sigenergy 46Deye 45Dražice 45GoodWe 43Sofar 41Fox ESS 36Solinteg 29Atmoce 27Huawei 19Solis 17Kstar 15Chisage 14Vonsch 13Wattsonic 13Sungrow 11Swatten 11LEDVANCE 11
Changes in this list
- 2026-10-31 — no change.
- 2026-10-29 — baseline.
Other countries
AL AlbaniaAT AustriaBA Bosnia and HerzegovinaBE BelgiumBG BulgariaCH SwitzerlandCY CyprusDE GermanyDK DenmarkEE EstoniaES SpainFI FinlandFR FranceGB Great BritainGE GeorgiaGR GreeceHR CroatiaHU HungaryIE IrelandIS IcelandIT ItalyLI LiechtensteinLT LithuaniaLU LuxembourgLV LatviaMD MoldovaME MontenegroMK North MacedoniaMT MaltaNI Northern IrelandNL NetherlandsNO NorwayPL PolandPT PortugalRO RomaniaRS SerbiaSE SwedenSI SloveniaSK SlovakiaTR TürkiyeUA UkraineXK Kosovo