How big, how expensive, for what? Questions and answers about electricity storage systems for photovoltaic systems. Plus comparison of solar storage systems from HTW Berlin.
Solar cells are popular because they produce electricity cheaply and quietly and are easy to install on many roofs. One disadvantage: when it gets dark, the power source dries up. Expensive electricity then flows from the public grid to power the home. The solution could be a battery storage system: it absorbs excess electricity from photovoltaic modules during the day and releases it again in the afternoon and evening.
An energy storage device is a battery that can be easily charged and discharged very frequently. Currently, these batteries mainly consist of lithium-ion storage cells – similar to the batteries in cell phones or electric cars. This type stores a lot of energy in a small space and wastes little electricity on itself. Eleven questions and answers on the topic of electricity storage.
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