  In this work, the impact of using Renewable Energy Source (RES) generators in
next-generation (5G) cellular systems on total power consumption (PC) has been
investigated. The paper highlights the gain related to the use of photovoltaic
(PV) panels and wind turbines (WTs) in the form of two factors - the average
extension of battery lifetime (AEBL) powering a single network cell and the
average reduction in energy consumption (AREC) within the whole network. The
examination has been conducted for four different seasons of the year and
various configurations of available power sources. The provided system scenario
was based on real data on weather conditions, building placement, and
implemented mobile networks for the city of Poznan in Poland. Used RES
generators were designed in accordance with the specifications of real devices.
