Telecom Operator's to accelerate the migration towards 400 volt direct current efficient powering for telecom/ICT equipment and coupling sites to smart energy microgrids

Since the year 2000, the up to 400 Volt Direct Current (400VDC) powering interface for Telecom and Datacenters equipment has been standardized and industrialized as it brings advantages. Compared to 48 Volt Direct Current power solutions, it uses much less copper and the energy losses in cable are lower. Compared to Alternating Current uninterrupted power supply (UPS) benefits are simplicity higher reliability and scalability with higher modular design. Now large implementations projects in thousands of Telecom networks sites and Megawatt datacenters are operated under 400VDC and acceleration of the use of this voltage interface requires solutions to simplify the migration towards 400V DC with progressive steps on many other sites. At the same time extended use is proposed for coupling renewable energy to the local DC power station and for remote powering of Telecom access network nodes. This paper will present the issues and the status of solutions found to accelerate the adoption of the 400V DC solutions in all these cases.