Energy FAQ
Frequently asked questions about the energy market, tariffs, supply procedures and renewable energy in Italy and Europe.
What is the PUN and how does it affect my electricity bill?
The PUN (Prezzo Unico Nazionale) is Italy's wholesale electricity reference price, calculated by GME as a quantity-weighted average of zonal prices in the Day-Ahead Market. If you have a variable-price contract indexed to the market, PUN fluctuations are directly reflected in your bill's energy cost. With a fixed-price contract, the PUN has no impact during the contract period. Source: GME.
What is the difference between the free market and the enhanced protection service?
In the free market you choose the supplier and negotiate price and conditions; in the enhanced protection service the price is regulated quarterly by ARERA. From 2024 the protection service is being phased out for non-vulnerable customers (Law 124/2017). Vulnerable customers retain protection. Source: ARERA.
How does electricity supplier switching work?
Supplier switching is handled through the Integrated Information System (SII) of Acquirente Unico: the new supplier submits the switching request with the customer's POD code. The old supplier is notified and cannot refuse (unless there is a blocking debt situation). Maximum timelines are defined by ARERA (TIMOE). The supply is not interrupted. Source: ARERA.
What is the POD code and where can I find it?
The POD (Point of Delivery) is the unique alphanumeric identifier of the electricity supply point (e.g. IT001E12345678). It appears on the electricity bill, usually in the "supply data" section. Required to sign a contract with a new supplier. Source: ARERA.
Can I produce energy with a solar PV system and sell the excess?
Yes. Energy produced but not self-consumed can be fed into the grid. GSE offers the Net-Metering service (Scambio sul Posto - SSP) for prosumers with up to 500 kW, enabling virtual compensation between energy fed in and drawn. Alternatively, energy can be sold to GSE or third parties, or shared within a Renewable Energy Community (CER). Source: GSE.
What is a Renewable Energy Community (CER) and how do I join?
A CER is a legal entity (association, cooperative) that brings together RES producers and consumers under the same primary substation. It enables local sharing of produced energy and entitles members to GSE incentives. To join, you must form or join an existing CER and connect a production plant, or simply be a consumer within the geographic perimeter. Source: GSE, Legislative Decree 199/2021.
What are the government incentives for solar PV in Italy?
RES incentives are managed by GSE through competitive procedures (auctions and register) defined by Legislative Decree 199/2021 and MASE implementing decrees. Smaller plants access the register; larger ones participate in auctions. For prosumers with self-consumption, the Net-Metering service provides valorisation of fed-in energy. Source: GSE, MASE.
What is the Energy Social Bonus and who qualifies?
The Energy Social Bonus is a tariff reduction automatically granted to low-income households (ISEE below the ARERA threshold) or customers with severe physical disabilities requiring life-saving electro-medical equipment. No application is needed: if entitled, it is applied directly on the bill through automatic INPS-SII data exchange. Source: ARERA.
How do I read my electricity bill?
The electricity bill consists of: energy charge (kWh × contract price), network transport and meter management charges (ARERA-regulated, same for all suppliers), system charges (ASOS for RES incentives, ARIM for system security), and taxes (excise duty and VAT: 10% residential, 22% non-residential). Source: ARERA.
What is the gas market and how does it differ from electricity?
The gas market has a similar structure to electricity: producers, transporters (SNAM), distributors, suppliers and final customers. The Italian virtual exchange point is the PSV (GME). Gas is imported via pipelines and LNG terminals (regasification). Local distribution is managed by DSOs operating under concession. Source: ARERA, SNAM, GME.
What happens if I don't pay my energy bill?
In case of non-payment, the supplier may suspend supply after sending formal communications following ARERA procedures. There is a default procedure that includes recognition of the Supplier of Last Resort (FUI) to guarantee continuity for vulnerable customers. Source: ARERA.
What are non-dispatchable renewable energy sources?
These are RES whose production cannot be scheduled: solar (depends on irradiation) and wind (depends on wind). Their integration into the grid requires system flexibility (storage, demand response, interconnections) to compensate variability. Source: Terna, ENTSO-E.
What is energy efficiency and why does it matter?
Energy efficiency is the ability to achieve the same outcome (heating, cooling, light, mechanical work) using less energy. It reduces costs, CO2 emissions and dependence on energy imports. In Italy incentivised through White Certificates (TEE), Ecobonus tax deductions and PNRR funding. Source: ENEA, MASE.
What is the two-rate tariff and is it beneficial?
The two-rate tariff differentiates the energy price between band F1 (workdays 8-19) and band F23 (evenings, nights, weekends). It is beneficial if you can shift flexible loads to off-peak hours (washing machine, dishwasher, thermal storage at night). Source: ARERA.
What are Italy's main renewable energy sources?
In descending order of annual output, Italy's main RES are: hydroelectric (historically the leading source, concentrated in the Alps), solar PV (rapid growth), wind (mainly in the South), bioenergy and geothermal (Tuscany). Updated data available in Terna and GSE annual statistics. Source: Terna, GSE.
How does Italy's capacity market work?
The Italian capacity market is managed by Terna with T-4 (4 years ahead) and T-1 (1 year ahead) auctions where generators offer capacity availability for a capacity payment (€/MW/year). The goal is to ensure long-term system adequacy by remunerating available capacity even when plants are not producing. Source: Terna.