AT — Austria
- List
- Wechselrichterliste TOR Erzeuger Typ A (dated 2026-10-30)
- Status
- ✓* listed with restrictions — “Ja - mit Einschränkung”
- As written
- SUNWAYS · STH-4KTL-HT
- Restriction applies from firmware
V1.6.0.0- Match
- exact · seen 2026-10-31
Sunways STH-4KTL-HT
Hybrid inverterin 5 of 7 listsno product family claims this code yet
Grid-connection lists
The list is the authority; this is a cross-reference.
Is the Sunways STH-4KTL-HT on the Austrian TOR Erzeuger Typ A list?
Yes — the Austrian TOR Erzeuger Typ A list lists it as “Ja - mit Einschränkung”; restriction applies from firmware: V1.6.0.0 (list dated 2026-10-30, checked 2026-10-31).
Steht der Sunways STH-4KTL-HT auf der österreichischen Wechselrichterliste (TOR Erzeuger Typ A)? Laut Liste vom 2026-10-30: „Ja - mit Einschränkung“.
Is the Sunways STH-4KTL-HT on the Belgian Synergrid C10/26 list?
Yes — the Belgian Synergrid C10/26 list lists it as “listed” (list dated 2026-10-30, checked 2026-10-31).
Is the Sunways STH-4KTL-HT on the Czech ČEZ Distribuce list?
Yes — the Czech ČEZ Distribuce list lists it as “listed”; approved firmware: Master: V2-9.17.1.0; Slave: V2-4.66.0.0 (list dated 2026-08-21, checked 2026-10-31).
Is the Sunways STH-4KTL-HT on the Dutch Netbeheer Nederland type-A list?
Yes — the Dutch Netbeheer Nederland type-A list lists it as “listed” (list dated 2026-10-30, checked 2026-10-31).
Is the Sunways STH-4KTL-HT on the Swedish Rikta Rätt inverter list?
Yes — the Swedish Rikta Rätt inverter list lists it as “listed”; firmware: V1.00 (list dated 2026-10-23, checked 2026-10-31).
- ATAustria — listed with restrictions “Ja - mit Einschränkung” · restriction applies from firmware
V1.6.0.0· Austrian TOR Erzeuger Typ A list dated 2026-10-30, read 2026-10-31✓ - BEBelgium — listed · Belgian Synergrid C10/26 list dated 2026-10-30, read 2026-10-31✓
- CZCzechia — listed · approved firmware
Master: V2-9.17.1.0; Slave: V2-4.66.0.0· Czech ČEZ Distribuce list dated 2026-08-21, read 2026-10-31✓ - EEEstonia — Not found on the list · Estonian Elektrilevi inverter list, read 2026-10-31
- NLNetherlands — listed · 2 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
V1.00· 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.
List by list
BE — Belgium
- List
- Synergrid C10/26 — list of power-generating units compliant with C10/11 (dated 2026-10-30)
- Status
- ✓ listed
- As written
- Sunways · STH-4KTL-HT
- Details
- Firmware, homologation reference and dates are in Synergrid's list; its terms allow personal use only, so only whether the model is listed is shown.
- Match
- exact · seen 2026-10-31
CZ — Czechia
- List
- Seznam schválených střídačů a otestovaných ochran (dated 2026-08-21)
- Status
- ✓ listed
- As written
- Sunways · STH-4KTL-HT
- Evidence
- Protokol (EGD)
- Approved firmware
Master: V2-9.17.1.0; Slave: V2-4.66.0.0- Date
- 2025-08-06 (added to the list)
- Settings profile
- EN50549(CZ)
- Match
- exact · seen 2026-10-31
NL — Netherlands
- List
- Goedgekeurde omvormers type A (opwek + opslag) (dated 2026-10-30)
- Status
- ✓ listed
- As written
- Sunways · STH-4KTL-HT
- Part
- generation list
- Match
- exact · seen 2026-10-31
- List
- Goedgekeurde omvormers type A (opwek + opslag) (dated 2026-10-30)
- Status
- ✓ listed
- As written
- Sunways · STH-4KTL-HT
- Part
- storage list
- Match
- exact · seen 2026-10-31
SE — Sweden
- List
- Rikta Rätt — växelriktare för solceller (dated 2026-10-23)
- Status
- ✓ listed
- As written
- Sunways · STH-4KTL-HT
- Running no.
- 519
- Firmware
V1.00- Date
- 2021-11-22 (reviewed)
- Comment
- Hybrid
- Match
- exact · seen 2026-10-31
Rows are matched by maker and a normalised model code; the “as written” line shows exactly what each list says. Check the list itself, and your grid operator, before you install.
Local control with Home Assistant and evcc
Checked 2026-10-31.
brand route, model unconfirmed No integration or template names this code. Sunways has 1 family with a local route; whether this model belongs to one of them is not confirmed:
- STH Series GEN3 — local control
Know which family it belongs to? Fix the row: the family's model-code pattern then claims it.