Energy efficiency project for off-grid mobile base stations, helping to reduce its energy consumption and carbon footprint thanks to the installation of hybrid systems, including solar panels, inverters, batteries as well as the renovation of the support generators. This project has been implemented in 2 correlative phases of 9 and 7 base stations. This project aims to optimise the energy efficiency of a network infrastructure belonging to the largest mobile phone operator in Spain. The first 9 mobile base stations are off grid, and were supplied solely by a diesel generator and without any energy storage system. The base stations have been renovated with two types of installations; 3 stations have had solar panels, inverters and batteries installed, together with a high quality diesel support generator; the 6 others have received storage batteries and a new diesel generator to recharge them. In addition, the diesel generator is activated through a control and monitoring software, being used solely to recharge batteries when necessary and monitor various aspects of the base station (temperature, ventilation, etc…).
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