Is plug-in solar legal in Italy? Current status

Italy was one of the first EU countries to write plug-in solar into law, and the framework is now six years old and unchanged in its essentials. This page sets out the two-tier process, what’s still required at each tier, and what an 800 W system is worth in Rome — see our Southern Europe tracker for how Italy’s rule compares with Portugal, Greece, Spain, Cyprus and Malta.

The rule: ARERA Delibera 315/2020/R/eel

Italy’s energy regulator, ARERA, issued Delibera 315/2020/R/eel on 4 August 2020, updating the Testo Integrato Connessioni Attive (TICA) — the technical rulebook for connecting small generators to the grid. It created a simplified regime specifically for very small plug-in generators, still in force in 2026:

• Up to 350 W: true “Plug & Play”. If the device is CEI-0-21 compliant and plugs into a dedicated, visible socket, the installer or owner self-certifies compliance — no communication to the distributor is required at all.
• 350 W to 800 W: a step up in paperwork, not in complexity. The installer sends a “Comunicazione Unica” to the local distributor and self-certifies through the GSE (Gestore dei Servizi Energetici) portal. There’s no fee for either step.

Above 800 W, a plug-in device no longer qualifies for either simplified route and falls back to Italy’s standard connection procedure for small generators — the same process a conventional rooftop system uses.

What you don’t get: no export payment

The simplified regime is deliberately narrow. A system installed under it gets no net-metering or net-billing compensation for any surplus it feeds into the grid — that mechanism doesn’t apply at this scale. In practice this means the economics only work if the system’s output is mostly self-consumed rather than exported; there’s no credit waiting for the part that isn’t.

Where the EU fits in

An EU-level recommendation (reported as 2026/1007) has pushed member states generally to remove authorisation barriers for systems up to 800 W. That’s relevant context for why the ceiling sits where it does across several southern European countries this year, but it’s a recommendation, not a new Italian instrument — Italy’s own rule predates it by six years and hasn’t been rewritten because of it.

Who this isn’t for

If your goal is to be paid for surplus export, plug-and-play isn’t the mechanism — you’d need a standard grid-connected system under Italy’s ordinary net-billing rules instead. And a system genuinely over 800 W AC needs the full connection process regardless of how it’s marketed; “plug-in” branding on a bigger kit doesn’t change which ARERA tier it falls under.

What it’s worth: the numbers for Rome

• Household electricity price: €0.2966 per kWh — Eurostat’s medium-consumption household band (2,500–4,999 kWh/year), all taxes and levies included, second half of 2025, the highest of the three countries on this tracker, and the latest period Eurostat has published.
• Solar yield: 1,197 kWh per year for an 800 W (0.8 kWp) system in Rome, from the EU’s PVGIS calculator, with a 35° tilt, south-facing (0° azimuth), free-standing mount and 14% system losses.

That’s a ceiling of roughly €355 a year in avoided purchase, if every kilowatt-hour generated displaced one you’d otherwise have bought — the highest ceiling of the three countries here, on the strength of Italy’s electricity price rather than its (slightly lower) solar yield. As with the other countries on this tracker, that figure assumes 100% same-time self-consumption, which no real household achieves; it’s the upper bound the maths supports, not a promised saving. We didn’t find a verified retail price for an 800 W kit in Italy this session, so we’re not stating a specific payback period — divide whatever a kit actually costs you by your realistic, sub-€355 annual saving to get one.

Sources

• ARERA — Delibera 315/2020/R/eel (4 August 2020; TICA update creating the Plug & Play and Comunicazione Unica tiers)
• Eurostat — Electricity prices for household consumers (nrg_pc_204), band DC (2,500–4,999 kWh), all taxes included, EUR, 2025-S2
• European Commission Joint Research Centre — PVGIS solar-yield calculator (Rome, 0.8 kWp, 35° tilt, 0° azimuth, free-standing, 14% losses, queried directly)