Its two main businesses consist in making the most of local renewables and unlocking energy savings.

[2] Dalkia develops alternative renewables, such as biomass, geothermal, biogas and recovered energies.

[4] It signed an agreement with Électricité de France in 2000 to build an international presence and expand its range of services, hence becoming a jointly owned company.

[5] Dalkia also bought the Clemessy Group, which specialises in systems for automation, mechanisation and electronics.

Heating networks powered by renewables are used in cities (by residents, companies, local authorities, etc.)

[9] In 2017, Sylvie Jéhanno announced that Dalkia would make a strategic priority of international development, aiming for 50% growth outside France by 2022.

[10] In October 2017, the company announced its acquisition of Matex Controls, a Polish SME specialized in climate engineering for industrial and tertiary buildings.