The paper considers energy consumption in 5G cellular networks powered by Renewable Energy Sources (RESs) and equipped with Reconfigurable Intelligent Surfaces (RISs) and tethered Unmanned Aerial Vehicles (UAVs), acting as mobile access points. The study was focused on the energy side of the Radio Access Network (RAN) located in the city of Pozna\'n in Poland. The profit associated with the use of renewable energy generators, i.e. photovoltaic panels (PVP) for base stations (BSs) is presented in the form of two factors: the average number of UAV charges (ANUC) to provide continuous access to mobile services for connected user equipment (UE) terminals, and the average reduction in energy consumption (AREC) of the wireless system.

翻译：本文研究了由可再生能源供电、配备可重构智能表面（RIS）和系留无人机（作为移动接入点）的5G蜂窝网络中的能耗问题。研究聚焦于波兰波兹南市无线接入网（RAN）的能源方面。通过两个指标展示了为基站（BS）使用可再生能源发电机（即光伏板PVP）所带来的收益：平均无人机充电次数（ANUC），用于确保连接用户设备（UE）终端能够持续访问移动服务；以及无线系统平均能耗降低量（AREC）。