Solar Permits and Business Regulations in Italy (2026)

Rooftop solar photovoltaic (PV) below 12 MW is attività libera, which means no permit is needed. This holds if the panels sit flat on the roof, or if the building is outside historic-centre zone A. Other PV on buildings needs a PAS, a simplified permit procedure filed with the comune (the local council). PV on protected sites needs one too. Ground plants of 1 MW or more that fit no exemption need a regional Autorizzazione Unica, a single permit.

An Italian solar installation business needs a compliance record for the company and for each project. Five things run on separate tracks. They are business qualification, project permission, grid connection, payment settlement with GSE (the state-owned energy services company), and tax. Finishing one does not finish the others.

This guide is for installers, EPCs (firms that engineer, buy and build projects) and commercial project owners.

What permit does a solar project need in Italy?

D.Lgs. 190/2024 is the renewable-energy law known as the “Testo Unico FER”. It sets three permit regimes. The first is attività libera, which needs no permit. The second is the procedura abilitativa semplificata (PAS), a simplified permit procedure. The third is the autorizzazione unica (AU), a single permit. Allegati A, B and C of the decree (its annexes) list which projects fall under which regime (Gazzetta Ufficiale n. 291, 12 December 2024). The solar lines below come from that text.

Five more rules apply on top of the table.

• Attività libera does not apply on property protected under Part II of the Cultural Heritage Code, in protected natural areas or in Natura 2000 sites. A PAS applies there instead (art. 7, para. 2).
• In landscape-restricted areas under art. 136 of the Cultural Heritage Code, the landscape authority must approve the work within 30 days of the request (art. 7, paras. 4-5).
• Splitting one project into smaller applications does not change the regime. Applications for the same area or from the same interest centre count as one (art. 6, para. 3).
• Regions can raise the power thresholds in Allegati A and B (art. 1, para. 3).
• A PAS above 1 MW must include a territorial compensation programme for the comune, set at 2% to 3% of proceeds (art. 8, para. 4, letter m).

The decree has been amended since publication. Normattiva (the official law database) shows its last update on 18 April 2026 (D.Lgs. 190/2024 on Normattiva). A third-party coordinated text from April 2026 (Testo Unico Rinnovabili v.6.0, compiled by a third party, not an official source) reads the same on the rooftop lines. It reads the same on the 1 MW lines in the table too. It shows two changes. The “idonee” areas line (suitable areas) now says 12 MW, with the areas defined in art. 11-bis. It also adds floating PV to Allegato A. The table leaves out the idonee-area and floating lines for that reason. Check the in-force Allegato for any project that depends on them.

Permits and grid steps for an industrial rooftop

An industrial roof is the most common commercial case. Below is a typical order for a site on the e-distribuzione network (an electricity distribution operator).

1. Classify the project. An industrial building outside zona A with PV below 12 MW on its roof is attività libera. Inside zona A, PV that does not sit flat on the roof slope needs a PAS.
2. Apply for the connection online. The producer applies straight to the grid operator. Use the customer area on the e-distribuzione site (e-distribuzione producer page). The site has a time and cost simulator you can use before you apply.
3. Receive the quote. ARERA (the energy regulator) sets the quote deadlines by injection power, which is the power you feed into the grid. The deadline is 20 working days up to 100 kW, 45 working days above 100 kW up to 1,000 kW, and 60 working days above 1,000 kW (e-distribuzione, how to connect a plant).
4. File the PAS if one applies. The PAS file must include the technical connection documents that the grid operator prepared or approved (art. 8, para. 4, letter d). So ask for the connection quote early.
5. Accept the quote, pay, and sign the regolamento di esercizio (the operating rules). After you accept, the applicant reports progress on permits and works. The operator checks those reports at activation, so they must match what is built.
6. Build, then activate. Once the applicant’s work and any work by the operator are done, the applicant picks the activation date. The TICA (ARERA’s rules for connecting plants that feed the grid) sets 10 working days for activation. The installer gets the activation record. It shows the production POD (the point of delivery code), which starts with the prefix ITPXE.
7. Open the GSE arrangement that applies to the plant (see the GSE section below).

e-distribuzione also runs a simplified route for PV of up to 200 kW. It covers building roofs, above-ground structures or home outbuildings. The customer must have an active low- or medium-voltage supply point. No other generator may sit on the same withdrawal point, and other conditions apply (e-distribuzione, connection types). Plug-and-play units of 350 W or less that follow CEI 0-21 (the low-voltage connection standard) use a single communication. Other grid operators publish their own procedures.

ARERA’s TICA clarification covers the rules for active connections, meaning plants that feed power into the grid. The connection solution depends on the operator, the voltage level and the requested power. It does not depend on installed kWp (peak panel power) alone.

What qualifications do installers and companies need?

The Chamber of Commerce of Trento describes the steps in its installer guidance:

• The company files a SCIA (a notice that starts the activity) through ComUnica with the Registro delle imprese or the Albo delle imprese artigiane. It can start work from the filing date.
• The requirements are technical and professional skills (art. 4, D.M. 37/2008). The owner, a partner, an administrator or the technical manager must meet them.
• Installing renewable-energy systems, solar included, adds a duty under D.Lgs. 28/2011. The technical manager must be qualified and keep their training up to date. The company files a SCIA for renewable sources that shows the technical manager’s qualifications, such as degrees and a training course.

Other Chambers of Commerce and regions run their own filing process. Use the one for the company’s registered location. Before you subcontract, record who does the electrical work, who designs it, and who issues the completion and conformity documents. The inverter maker’s certificate and the installer’s declaration are different documents.

Public works

ANAC (the Italian anti-corruption authority) updated its qualification manual for works above EUR 150,000. The update matches the new procurement code (ANAC, October 2025). For a public tender, read the tender documents. Check the required categories, classifications and subcontract conditions. Being eligible for private work does not carry over to a tender.

What does a company need to sell electricity in Italy?

A company that sells electricity to final customers must be on the Ministry’s Elenco venditori (the list of electricity sellers). D.M. 25 August 2022, n. 164 (Gazzetta Ufficiale n. 256, 2 November 2022) sets the rules. Being listed is the legal permission to sell in the retail market (D.M. 164/2022 on the Elenco venditori portal). The decree sets these conditions:

• Legal form: S.p.A., S.a.p.A., S.r.l., consortium company, special enterprise, cooperative, or a foreign company set up under articles 2508 and 2509 of the civil code.
• Corporate object: electricity sales must appear in the articles or the registered statute.
• Capital: fully paid-up share capital of at least EUR 100,000.
• Good standing: directors, legal representatives, auditors and general managers must meet the conditions in article 4. The company must not be in bankruptcy, liquidation or similar procedures.
• Payment record: fewer than two late transport invoices to the distributor in the reference half-year (distributors with fewer than 100,000 withdrawal points are checked yearly). Also fewer than two breaches of Terna’s (the transmission grid operator’s) guarantee index in the same half-year.

You apply to the Ministry. It lists the company within 30 days of getting a complete application. Every three years the company confirms that it still meets the requirements. Some installers only sell and install PV systems. They do not sell electricity to customers. They are outside this scope.

CEI standards and equipment documents

CEI is Italy’s body for electrical standards. CEI’s FAQ library covers CEI 0-21 for low-voltage connections to the grid and CEI 0-16 for high- and medium-voltage connections. CEI publishes a consolidated working version of CEI 0-21. It combines the 2022-03 standard with variants V1 (2022-11), V2 (2024-01) and V3 (2025-10). CEI says the consolidated file does not replace the base standard and variants. Design and buy equipment to the standard and variants that apply on the connection date.

Keep evidence of the model and firmware. Keep the maker’s declarations, protection settings and test records too. All of it must match the approved design.

GSE: pick the service before you price the revenue

GSE runs several services and incentive schemes. Each has its own rules on who qualifies, what evidence you need and what agreement you sign. Find out which arrangement applies before you put any revenue in a quotation.

Scambio sul Posto is closed to new 2026 plants

GSE’s rule says plants that entered operation by 29 May 2025 could submit a new Scambio sul Posto (SSP) request until 26 September 2025 (GSE customer assistance). Both dates have passed. So do not sell a new 2026 plant as one that automatically enters SSP.

To be paid for power you export, compare the arrangements open to the plant with their current GSE conditions. Incentive calls, tax credits and energy-community schemes each have their own rules. This guide does not assume any of them is open.

Tax, employment, insurance and contracts

VAT, reverse charge (the buyer accounts for the VAT instead of the seller), payment documents and the customer’s incentive treatment depend on the actual deal. Have the commercialista (the accountant) confirm the treatment before you invoice. This guide gives no VAT rate. Put these in the contract. List subcontract duties, employment and contribution records, safety roles, insurance and warranties. Manufacturer warranty terms are separate from the contractor’s contract and legal duties.

Grid export limits or curtailment (forced cuts in output) could change the economics. If so, get written evidence from the grid operator for that connection point. Then model it as its own scenario.

Keep a dated project compliance register

This is our own project-management format, not a checklist from an authority. Use it next to the legal and technical documents.

Mark each item confirmed, pending or out of scope, with the source and the date. If the permit route changes mid-project, record it as a documented change. See solar change order management.

For financial scenarios, see the Italy solar ROI guide. The broader business workflow is in the Italy solar industry hub. Commercial permitting basics are in the commercial solar permitting hub.

Frequently Asked Questions

What permits does a solar project need in Italy?

Under D.Lgs. 190/2024, rooftop PV below 12 MW is attività libera. That means no permit is needed if the panels lie flat on the roof or the building is outside zona A. A PAS filed with the comune covers other PV on buildings and PV on protected sites. It also covers other plants up to the PAS limits. Ground-mounted PV of 1 MW or more that fits no exemption needs an Autorizzazione Unica from the region.

What permits and grid connection steps are needed to install solar on an industrial facility?

Sort the project under Allegati A, B and C of D.Lgs. 190/2024. Ask the grid operator for a connection quote. e-distribuzione gives 20, 45 or 60 working days, depending on injection power (the power you feed into the grid). File the PAS if one applies. Accept the quote and sign the regolamento di esercizio (the operating rules). Then build, switch on the connection and open the GSE arrangement.

What qualifications do solar installers need in Italy?

The company files a SCIA (a notice that starts the activity) with the Chamber of Commerce. It shows the D.M. 37/2008 technical-professional skills through its owner, partner, administrator or technical manager. For renewable-energy systems it also needs the qualification and updating that D.Lgs. 28/2011 requires, shown through a SCIA for renewable sources.

Is Scambio sul Posto available for a new 2026 installation?

No. GSE’s rule said plants had to be in operation by 29 May 2025, and requests had to be sent by 26 September 2025. You cannot sell a new 2026 project on the assumption that it can newly enter the SSP scheme.

Does GSE registration approve the grid connection?

No. You ask the grid operator for the grid connection. The GSE service or incentive application is a separate process. Each has its own forms, evidence and timing.

What does a company need to sell electricity to final customers in Italy?

It must be listed in the Ministry’s Elenco venditori (the list of electricity sellers) under D.M. 164/2022. The company must be an S.p.A., S.a.p.A., S.r.l., consortium company, special enterprise, cooperative or a foreign company set up under articles 2508-2509 of the civil code. Its corporate object must include electricity sales. It must have fully paid-up capital of at least EUR 100,000. Its directors must meet the good-standing rules.