The activity of the Generation and Trading Business Unit is related to the management of the generation plants portfolio⁽¹⁾ of the Group with the dual purpose of maximizing the availability and efficiency of the plants, minimizing operating and maintenance costs (O&M) and maximizing the profit deriving from the management of the energy portfolio through the purchase and sale of electricity and fuels (gaseous and non-gaseous) and environmental certificated on domestic and international wholesale markets. This Business Unit also includes the activity of trading on domestic and foreign markets of all energy commodities (gas, electricity, environmental certificates).

^{(1) Total install ed capacity of 8.8 GW.}

The activities of the Market Business Unit are aimed at the retail sale of electricity and natural gas to customers in the free market and sale to customers served under protection scheme, the management of public lighting, traffic regulation systems, votive lamps. Furthermore, it deals with providing energy efficiency and electric mobility services.

The activities of the Waste Business Unit relates to the management of the integrated waste cycle, which ranges from collection and street sweeping to the treatment, disposal and recovery of materials and energy. In particular, collection and street sweeping mainly refers to street cleaning and the collection of waste for transportation to its destination. Instead, waste treatment is an activity that is carried out in dedicated centres to convert waste in order to make it suitable for the recovery of materials. Lastly, disposal of urban and special waste in combustion plants or landfills ensures the possible recovery of energy through waste-to-energy or the use of biogas.

The activities of the Networks & District Heating Business Unit mainly consists of the technical and operational management of networks for the distribution of electricity, the transport and distribution of natural gas and the management of the entire integrated water cycle (water captation, aqueduct management, water distribution, sewerage network management, purification), in addition to the TLC and Smart City activities. In particular, within the Group, these latter activities are managed by A2A Smart City, the reference operator for the provision of telecommunications services. In particular, it provides services related to the management of fixed and mobile telephony and data transmission lines as well as services related to the management and development of infrastructure in support of communication. A2A Smart City is also a major provider in the realization and management of video surveillance and access control systems. It is also aimed at the sale of heat and electricity produced by cogeneration plants (mostly owned by the Group), through district heating networks and ensures the operation and maintenance of cogeneration plants and district heating networks. Also included are the activities related to the management services for heating plants owned by third parties (heat management services).

Corporate services include the activities of guidance, strategic direction, coordination and control of industrial operations, as well as services to support the business and operating activities (ex. administrative and accounting services, legal services, procurement, personnel management, information technology, communications etc.) whose costs, net of amounts recovered from accrual to individual Business Units based on services rendered, remain the responsibility of Corporate.