A system for managing the distribution of electrical power between at least two distinct buildings each comprising a domestic network connected to a local network is provided, said local network being connected to a public network. Each building comprises a power source, an inverter connected to said power source, a battery supplied with power by the inverter, and at least one apparatus operating using the power from the domestic network. The system comprises, in each building, a domestic module for regulating the power flow through the domestic network. The system comprises a central module connected to each domestic module making it possible to regulate the power flow between the local network and the public network, said central module being arranged so as to regulate the power flow between the buildings in order to allow an exchange of power between a domestic network in excess and a domestic network in deficit.