To address the challenges of the energy transition—specifically, increasing the share of renewable energy in the energy mix to 40% by 2030—transmission and distribution networks are evolving. These changes are intended to enable the integration of renewable electricity generation while ensuring the safety and security of the power system, as well as the quality of power supply to consumers. These developments are characterized by the creation of standardized, factory-prefabricated solutions called “Postes Sources Express,” which reduce the construction time for a source substation.

INEO Postes & Centrales designs and develops buildings for ENEDIS’s “Postes Sources Express.” These are prefabricated buildings capable of housing either 11 to 12 high-voltage (HV) cells, the control and command center, or the energy workshops. These buildings are constructed in a factory with a precast concrete slab onto which a steel frame clad with steel sandwich panels is installed; the electrical equipment is also installed in these buildings at the factory. In parallel with this prefabrication, the concrete infrastructure is built on-site; the completed prefabricated building will be placed on this infrastructure on site. These pre-designed and standardized modules cut construction time in half and reduce the impact of unforeseen events on the project timeline, all of which allows for faster connection of renewable electricity generators.