Fuel Cell based Uninterruptable Power Supply (UPS) an Innovative Telecommunication Application

Abstract:
Fuel cell products and systems are still about to break through in their markets. Among many other applications which are currently under development most success for a market entry today is seen for stationary applications where conventional batteries often operate reach their technical limits. A fuel cell system in combination with a UPS application with a power output of netto 2 kW at - 48 VDC is available now. One of the major advantages is that the back-up time is free dimensionable, simply by the installation of a long lasting hydrogen storage (e.g. compressed gas bottles) at low cost. The key funtionalities are furthermore: supply of reliable uninterruptable power for Base Transceiver Stations (BTS) in a mobile network operators telecommunication network, mid-range UPS systems for internet and other multimedia applications such as, due to free dimensionable back-up periods a more long-term power supply (for example in security demanding environments such as cable tv, fibre optical networks, backbones and more).