It's amazing to see that the German operators are always sharing a lot of interesting trials and results. Last month O2 Telefónica announced that they have put Bavaria's first mobile phone base station into operation that operates completely independently of the general power supply. The press release said:
In Sindlbach, in the district of Neumarkt in der Oberpfalz, photovoltaic modules and biomethanol fuel cells supply the newly erected mast with sustainable energy. O2 Telefónica is thus closing a white spot for its local customers. They can now surf and make calls using the modern 5G standard, 4G (LTE) and 2G (GSM). O2 Telefónica is working on closing the last white spots and driving forward the network expansion quickly and sustainably.
The new mobile phone mast in Sindlbach is located in the middle of agricultural and forestry land. A power line to operate the technology is lacking far and wide. The innovative solution: at the mobile phone tower in Sindlbach, the energy is generated directly on site and emission-free. The main source of energy is a photovoltaic system. The electricity is temporarily stored in large lithium-ion batteries and is therefore always available. A biomethanol fuel cell supplies the energy for days with little sunshine. This alone could supply energy for two months in continuous operation with just one charge. The system is controlled using state-of-the-art cloud technology and AI. This makes it possible to switch automatically between the two energy sources as required. The self-generated energy on site saves over 13,000 kilowatt hours of electricity per year compared to a conventional installation.
In spring 2024, O2 Telefónica launched the first mobile communications site in Germany in Kirtorf, Hesse, that operates without a conventional power connection. In the video, Dag Hüdepohl, Senior Engineer Infrastructure, explains the goal O2 Telefónica is pursuing with this innovative concept.
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