Use Case 4: Brescia, Italy

• Use Case Area of Application: the use case will apply the RESTORE concept to a DHC network linked to one of the largest electric arc furnace steel mills in Italy
• Expected goals to be achieved: achieve higher efficiency of Alfa Acciai production process, improve HP utilization during summer season and increase share on local DH.

Use Case Description

Alfa Acciai is one of the largest Electric Arc Furnace Steel Mill in Italy. It started producing steel in Brescia in the mid 1950’s. It soon became a benchmark in the industry and the construction sector at a time of rapid social and economic growth. The installation of a continuous casting system and heavy investments in new technology allowed the company to step up the production capacity in both the steel mill and rolling mill.

The Alfa Acciai Group has been increasingly oriented towards customer service, by focusing on the production of steel for the reinforcement of concrete, while respecting the environment and the worker health and safety in the workplace.

In recent years, the Alfa Acciai group became one of Europe’s leading producers of reinforcing steel for the construction industry. The community of Brescia profit directly from the continuous growth of the company and its innovations.

Alfa Acciai site in Brescia is composed by 2 electric arc furnace units and 3 rolling mills. Current strategy for waste heat recovery system based on a large HP able to recover waste heat from the cooling system of the “pipe to pipe” circuit of the furnaces. The temperature of available heat is in the range of 30°-40°C and can be upgraded up to 90°C through the HP and used for district heating instead of being wasted. The recovered upgraded thermal energy will be used and integrated in the local district heating of municipality of Brescia and distributed to the final users in order to satisfy the heat demand in a smart and green way.

Alfa Acciai plant overview