# Italy renewable energy billing regulation changes

> Live situation record from CLSTR: https://clstr.news/situations/italy-renewable-energy-billing-regulation-changes
> Updated: 2026-10-06T14:57:03.000Z. Sources: 6. Developments: 2.

Italy is preparing to implement new energy sharing and billing regulations starting January 24, 2026. Following the transposition of the European RED3 directive via Legislative Decree No. 3, the country will introduce a multi-vendor model and the decoupling of photovoltaic components in energy bills.

This decoupling is designed to separate traditional grid consumption from shared renewable energy consumption for members of renewable energy communities or collective self-consumption groups. The mechanism intends to make the economic advantages of shared energy more visible and verifiable by applying changes directly to the bill structure rather than relying on retrospective calculations.

## Timeline

### 2026-10-06: Italy to maintain electronic invoicing mandate beyond 2027

Electronic invoicing in Italy will remain mandatory after 2027 due to EU VAT reforms. Domestic transactions will continue via the SdI, while EU-wide B2B electronic invoicing is expected by July 2030.

3 sources. https://clstr.news/cluster/italy-to-maintain-electronic-invoicing-mandate-beyond-2027

### 2026-10-04: Italy to implement new photovoltaic billing and energy sharing rules in 2026

Italy will introduce new energy-sharing mechanisms in 2026, including bill decoupling for photovoltaic users, while businesses transition toward integrated energy efficiency and management systems.

3 sources. https://clstr.news/cluster/italy-to-implement-new-photovoltaic-billing-and-energy-sharing-rules-in-2026

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Cite as: Italy renewable energy billing regulation changes. CLSTR, https://clstr.news/situations/italy-renewable-energy-billing-regulation-changes