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Perpetuum Mobile – The PV plant of the Gymnasium Kenzingen now has professional monitoring


There has been a solar working group at the Gymnasium Kenzingen in Germany since 2001. As part of the project Perpetuum Mobile, a PV plant was installed on the roof of the school in 2001 with an output of 70 kWp. Today, there are three PV plants with a total output of 122.88 kWp on the school buildings. All of the feed-in proceeds are re-invested in various climate projects. The “Förderverein für Zukunftsenergien, Solarregio Kaiserstuhl e.V.” [support association for future energy sources] manages the solar working group as a trustee. Students involved in the solar working group continue to expand the PV plants, usually by volunteering during the school breaks. They are supported by the association.

This year the PV plant was equipped with a Solar-Log 2000 as a donation from SDS. This allows the students to get hands-on experience with PV plant monitoring in a practical way and to learn about the importance of monitoring. It allows the students to gain practical experience in the areas of feed-in management and self-consumption optimization.

“With the project Perpetuum Mobile, we want to make sure that students are learn more about photovoltaics. In my opinion, this is important for their own future. The Solar-Log 2000 donated by SDS allowed us to immediately detect various problems. Typical examples include detecting offline inverters, PV modules or shadowing. In addition to learning opportunity it has provided the students, the Solar-Log 2000 greatly increased our yields,” said Rudolf Müller, the teacher in charge of the project.

Sebastian Bindner, general manager of Carpe Sol Kaiserstuhl Solar GmbH and advisory member of the support association management board “Zukunftsenergien, Solarregio Kaiserstuhl e.V.” said: “Since 2008, we only use the Solar-Log™ at our company. Not only does it provide precise monitoring, but it also supports in managing feed-in power into the grid and offers the option to specifically control self-consumption. The Solar-Log™ comes with the special features of inverter independence, a versatile WEB portal and compatibility with heat pumps, battery storage, heating rods and combined heat and power units.”

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