The networks evolution and the impact on power supplies

The combined effects of the opening of the telecommunications market, the exponential rise in traffic and the increasing deployment of high flow rate networks have a great influence on the changes to the networks power supply. The paper recalls evolutions applied to system supply interfaces and their impact on the energy supply chain. It offers new sources of backup electrical network. It also gives orientations to be taken into account as far architecture material is concerned, as well as industrial installations. Equally applicable is the concept of cogeneration for the reduction of energy costs