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Plugin solar in Europe

Plugin solar is spreading across Europe. Each country has its own legal requirements, VAT treatment, power plug types etc. While this creates a fragmented market, customers vote with their wallets and are installing plugin solar PV and storage at ever growing rates.

Sources: Plugin-solar.eu and SolarPower Europe

Plugin solar regulations in Europe

Explore country-by-country guidance for plug-in solar systems.

Austria

Legal
Maximum (plugin): 800 W
Maximum (other kits): Above 800 W: installer + grid request

Legal up to 800 W inverter output; notify your grid operator 2 weeks before use. No permit or electrician required. Surplus is unpaid unless you request a feed-in meter point.

See Austria guide

Belgium

Legal
Maximum (plugin): 800 W
Maximum (other kits): Above 800 W via socket + registration

Legal with a Synergrid-listed inverter, plugged into a wall socket; no electrician. Above 800 W possible (Flanders: register with Fluvius). Surplus paid at supplier rate.

See Belgium guide

Bulgaria

Unknown
Maximum (plugin): None set
Maximum (other kits): Same route: notice + design docs

No plug-in rule: even an 800 W kit needs a notice to the grid operator and zero-export wiring. Apartments need owners' consent and a permit. Surplus power is not paid.

See Bulgaria guide

Croatia

Unknown
Maximum (plugin): None set
Maximum (other kits): Up to 3.68 kW (1-ph) / 11.04 kW (3-ph) by notice

No plug-in rule; kits count as solar plants. Up to 3.68 kW (1-phase) you install, then notify HEP ODS, which fits a two-way meter within 30 days. Surplus earns 90% of energy price.

See Croatia guide

Cyprus

Unknown
Maximum (plugin): None set
Maximum (other kits): With electrician + EAC approval

No plug-in rule yet. Any grid-connected solar needs an EAC Net Billing application, a licensed electrician and an inspection. Off-grid use needs no approval.

See Cyprus guide

Czechia

Unknown
Maximum (plugin): 800 W
Maximum (other kits): Up to 10.8 kW with electrician

No plug-in law yet. A kit counts as a micro-source: apply to your grid operator before use, with zero grid export. Paperwork is lighter up to 800 W.

See Czechia guide

Denmark

Not allowed
Maximum (plugin): Not allowed
Maximum (other kits): Not via socket (electrician only)

Plugging a solar kit into a wall socket is not allowed. Kits are legal only if an authorised electrician connects them in the fuse box. Surplus can be sold at spot price.

See Denmark guide

Estonia

Legal
Maximum (plugin): 800 W
Maximum (other kits): Above 800 W: €615 connection + electrician

Allowed up to 800 W per home (official cap just under 0.8 kW): register free with Elektrilevi online, no electrician. No export by default; selling surplus needs a paid meter swap.

See Estonia guide

Finland

Not allowed
Maximum (plugin): Not allowed
Maximum (other kits): Not via socket (electrician only)

Not allowed: Tukes says plugging solar panels into a socket is illegal. Small systems must be connected by a registered electrical contractor and reported to the network company.

See Finland guide

France

Legal
Maximum (plugin): None set
Maximum (other kits): Up to 3 kVA via socket + Enedis declaration

Kits can be plugged in after a free Enedis declaration (up to 3 kVA, no battery). No paid feed-in. The 2024 wiring standard discourages socket connection; check your circuit.

See France guide

Germany

Legal
Maximum (plugin): 800 W
Maximum (other kits): Not via socket (installer)

Up to 800 W inverter and 2,000 Wp of panels (960 Wp on a normal socket). Free online registration within one month; no electrician. Surplus feeds in unpaid.

See Germany guide

Greece

Legal
Maximum (plugin): 800 W
Maximum (other kits): Not via socket; up to 10.8 kW with installer

Legal since 14 September 2026: up to 800 W (1,000 Wp panels), one kit per meter. Notify HEDNO online; an electrician must sign off. Surplus sent to the grid is not paid.

See Greece guide

Hungary

Not allowed
Maximum (plugin): Not allowed
Maximum (other kits): Not via socket (HMKE approval)

Plug-in solar is not allowed: any grid-connected panel counts as a household power plant (HMKE) needing grid-operator approval, and solar panels on balconies are banned.

See Hungary guide

Ireland

Unknown
Maximum (plugin): None set
Maximum (other kits): Up to 6 kVA (1-ph) / 11 kVA (3-ph) with electrician + NC6

No plug-in rule yet: kits must be wired in by a registered electrician and notified to ESB Networks (NC6). A simplified 800 W route is planned, aimed for mid-2027.

See Ireland guide

Italy

Legal
Maximum (plugin): 800 W
Maximum (other kits): Above 800 W: standard procedure + installer

Up to 800 W with one free notice (Comunicazione Unica) to your grid operator, including a conformity declaration and wiring diagram. Surplus feed-in allowed, unpaid.

See Italy guide

Latvia

Unknown
Maximum (plugin): None set
Maximum (other kits): Up to 3.7 kW (1-ph) with certified installer

No plug-in rule. Any grid-connected solar needs Sadales tīkls permission and a certified installer. Surplus can be credited via a net-settlement contract.

See Latvia guide

Lithuania

Legal
Maximum (plugin): 800 W
Maximum (other kits): Above 800 W: certified contractor

Up to 800 W inverter output and 3,600 Wp of panels. Declare it yourself online to ESO, no electrician needed. Surplus is stored in the grid for a fee.

See Lithuania guide

Luxembourg

Legal
Maximum (plugin): 800 W
Maximum (other kits): Above 800 W: electrician + grid declaration

Legal up to 800 W inverter output (official cap 799 W) on an existing circuit. No registration below 0.8 kW. RCD required. Surplus to the grid is unpaid. No Klimabonus for kits.

See Luxembourg guide

Malta

Unknown
Maximum (plugin): None set
Maximum (other kits): With electrician; notice up to 3.68 kW (1-ph)

No plug-in rule. Any solar system must be notified to REWS, wired to BS 7671 (not via a socket) and certified by an authorised electrician. Surplus can earn a feed-in tariff.

See Malta guide

Netherlands

Legal
Maximum (plugin): None set
Maximum (other kits): Same rule: own circuit (electrician)

No specific plug-in rule. The Dutch wiring standard requires solar on its own circuit, so plan for an electrician. Register at energieleveren.nl. Net metering ends 1 January 2027.

See Netherlands guide

Norway

Legal
Maximum (plugin): None set
Maximum (other kits): Same rule: dedicated circuit (electrician)

Legal with caveats: not in an ordinary socket. Use a dedicated circuit installed by a registered electrician. No watt limit; surplus can be sold as a "plusskunde".

See Norway guide

Poland

Unknown
Maximum (plugin): None set
Maximum (other kits): Up to 50 kW with installer + grid notice

No plug-in rules or watt limit. A kit counts as a microinstallation: a qualified installer fits it and the grid operator is notified 30 days ahead. Surplus is credited at market price.

See Poland guide

Portugal

Legal
Maximum (plugin): 800 W
Maximum (other kits): Above 800 W: installer + DGEG notice

Up to 800 W with no permit, if no power flows to the grid (zero export). With grid export or above 800 W: DGEG notification and a certified installer.

See Portugal guide

Romania

Legal
Maximum (plugin): 800 W
Maximum (other kits): Up to 400 kW as prosumer

Kits under 800 W may use a socket, but ANRE requires an authorised electrician and prior notice to your grid operator. Surplus power is unpaid unless you become a prosumer.

See Romania guide

Slovakia

Unknown
Maximum (plugin): None set
Maximum (other kits): Up to 10.8 kW with grid-operator contract

No plug-in rule or watt limit. Even an 800 W kit is a "small source": apply to your grid operator, sign a free connection contract and wait for a two-way meter before plugging in.

See Slovakia guide

Slovenia

Legal
Maximum (plugin): 600 W
Maximum (other kits): 800 W+ with connection approval

Legal for households up to 600 W. Notify your grid operator 14 days before use. No electrician or approval needed. Surplus may flow to the grid but is not paid.

See Slovenia guide

Spain

Legal
Maximum (plugin): 800 W
Maximum (other kits): Dedicated circuit + CIE

Kits up to 800 W can plug into an existing circuit with no paperwork if they never export to the grid. Exporting or going above 800 W needs an installer's certificate (CIE).

See Spain guide

Sweden

Not allowed
Maximum (plugin): Not allowed
Maximum (other kits): Not via socket (electrician only)

Plugging a solar kit into a socket is not allowed. A registered electrical company must connect panels permanently and notify your grid company first.

See Sweden guide

Switzerland

Legal
Maximum (plugin): 600 W
Maximum (other kits): Above 600 W with licensed installer

Up to 600 W per meter, Swiss plug, built-in RCD/RCMU. Notify your grid operator in writing before use. No electrician needed. Surplus is paid by the grid operator.

See Switzerland guide

United Kingdom

Legal
Maximum (plugin): 800 W
Maximum (other kits): Not via socket (G98/G99 installer)

Legal in Great Britain since 27 August 2026, not Northern Ireland. 800 W AC / 2,000 W panels, ENA-listed kit, no battery, register before use. No electrician; surplus unpaid.

See United Kingdom guide

Contribute to this overview

While we researched each country's regulation diligently, we might have missed a recent update or got something wrong. If you have more updated information, please contribute to this overview and message us.

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