Energy has become extremely expensive, not least as a result of the war in Ukraine. When it comes to electricity, the sun offers an alternative, so that consumers are at least partially more independent when it comes to energy. There are now plenty of small solar systems on the market for generating electricity yourself. But not every system is useful for every purpose, says Bastian Büttner from the Bavarian Center for Applied Energy Research (ZAE) in Würzburg. It depends on many factors.1.
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