Hybrid powering system for stand-alone remote telecom applications

This paper presents the analysis of a Hybrid Power System (HPS) based on Photovoltaic, Battery and Liquefied Petroleum Gas genset (PV/BAT/LPG) in remote telecommunications equipment of low power. From the various forms of supplying such equipments not connected to the public grid, it is proposed a solution that combines three sources (one of them renewable energy), providing redundancy. It is procured to widen the availability. Then, this HPS system guarantees a continuous energy supply at reasonable cost, positive ecological effects and escapes of the total dependency of the resources of the hydrocarbons and the economic viability of some other energetic alternatives. Low cost and high reliability powering system is pursued with such combination of energy sources. As an example for Germany a HPS (PV/BAT/LPG) reduces a 50% of total cost in comparison with a PV stand-alone and LPG stand-alone, for 500W equipment power. Then, HPS is oriented to be deployed in remote locations where connection to utility power is costly, inconvenient or unreliable.