Abstract: “This paper gives a brief review of various power architectures suggested through years of research and implementation in various countries, by various firms and individuals for achieving low emission, high quality, minimal battery storage, high reliability, low operating cost, rapid Return of Investment (ROI), alternative sources of energy during long power outages, size of the telecom facility, modularity, redundancy, maintainability, Mean Time Between Failure (MTBF), Mean Time To Repair (MTTR).”

Keywords: station Power supplies, telecom energy schemes, power