The largest electricity producer in the Italian electricity market accounted for 18 percent of the national production of electricity in 2022. The percentage has declined since 2006, when it reached over 34.5 percent, except for a brief recovery between 2013 and 2015 and the end of the period. Enel, ENI, and A2A were the main household electricity providers in Italy in 2022, with market shares of 17.3, 9.3, and 6.8 percent, respectively.
Liberalization of the electricity market
It may be assumed that the decline in the market share of the major company was due to the process of liberalization of the electricity market, which is currently ongoing in Italy. As a matter of fact, the volume of electricity sold in the deregulated market in Italy has been increasing constantly, up to 223 terawatt-hours in 2022. Conversely, the electricity sales in the regulated market have experienced a steady decrease over the past few years. They amounted to 22 terawatt-hours in 2022.  
Number of companies selling electricity
Similarly, the number of sellers in the electricity deregulated market in Italy increased from less than 200 in 2011 to 560 in 2022. The firms providing electricity in the framework of the regulated market became less numerous.