Photovoltaics: what are the incentives and bonuses?

To incentivise the uptake of photovoltaics, the law has provided a number of benefits:

• 50% tax deduction: you can take advantage of this incentive*, thanks to which you can recover half of the cost of the photovoltaic system in the form of a tax deduction (from Irpef - income tax) over the ten years following payment of the expenses (ART. 16 bis Presidential Decree 917/86), provided that the intervention is carried out before 31 December 2024.

• On-site exchange: this is a special form of on-site self-consumption - also confirmed for 2024 - that allows the energy produced and fed into the grid at a certain time to be offset against energy withdrawn and consumed at a different time. The electrical system in this case is used as a tool for the virtual storage of electrical energy produced but not self-consumed by the user at the same time. A prerequisite for the provision of the service is the presence of installations for the consumption and production of energy under a single point of connection to the public grid. The GSE enters into an agreement with the party intending to make use of on-site exchange, on the basis of which it takes delivery of the entire quantity of energy produced and fed into the grid over the year and pays compensation** to cover the same time period.

• Fondo nazionale Reddito Energetico (National Energy Income Fund): this is a non-repayable contribution to facilitate the installation of residential photovoltaic systems and is aimed at family units in a state of economic hardship, i.e. with an Equivalent Economic Situation Indicator (ISEE) of less than EUR 15,000 (fifteen thousand) or less than EUR 30,000 (thirty thousand) in the case of family units with at least four dependent children. If the nominal power of the installations is not less than 2 kW and not more than 6 kW, as established by the Decree, the fixed portion of the contribution may not exceed EUR 2,000, while the variable portion will be a maximum of EUR 1,500/kW.

*As part of the building renovation works that provide for a 50% deduction of the expenses incurred, those for the supply and installation of photovoltaic systems also fall within the scope of the deduction; for this purpose, expenses incurred up to 31 December 2024 are eligible for deduction (Art. 16 bis (1h) Presidential Decree 917/86).
**This compensation takes into account the system and network charges paid by the consumer on the compensated volume.