COUNTRY FOCUS : GERMANY
Dittenheim . The Ericsson Power System is handling maximum power point tracking ( MPP ) as well as the necessary voltage conversion . The solution also includes integration of the solar solutions into the same management system that also controls the Radio Access Network ( RAN ).
The tests , carried out in the second half of 2020 , showed that solar energy is able to contribute to more than two-thirds of the site ’ s total power during peak hours . Depending on the solar irradiation and technology configuration , larger shares , including up to fully autonomous power supply , were also observed . This is thanks to the energy-efficient radio equipment .
The project confirms the potential of solar energy as an alternative power source for mobile sites and opens up for other renewable power sources .
Leif Heitzer , Senior Vice President Technology Guidance and Economics at Deutsche Telekom , said : “ Autonomous power supply for mobile sites not only reduces our CO 2 emissions , but shall also help in enabling network expansion in locations where development costs were previously not economical .”
Heather Johnson , Vice President for Sustainability and Corporate Responsibility , Ericsson , said :
In a German village about 100 miles north of Munich , Deutsche Telekom and Ericsson are pioneering the use of solar energy for mobile broadband sites .
“ Ericsson is a driving force for global climate action and this project is another example for how a networklevel approach can be deployed sustainably for mobile networks . We welcome this partnership with Deutsche Telekom and we continue to be committed to supporting our customers , manage their network energy consumption and related carbon emissions .”
The initiative is intended to make an important contribution for energy transition efforts and towards reducing the impact on climate change . Since the beginning of 2021 , Deutsche Telekom has been sourcing its electricity throughout the group exclusively from renewable energies . By 2030 , other CO 2 emissions are to be reduced by 90 % compared to 2017 . p
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