During the day, the photovoltaic modules cover the base load in the flat and charge the batteries. After sunset, the Minitower feeds electricity into the flat grid and continues to cover the base load with self-generated solar power. The amount of energy the Minitower emits can be adjusted continuously in the range from 30 to 270 watts using a rotary control.
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Two photovoltaic modules can be connected to the Minitower to charge the batteries. A third and fourth module can be connected via a further connection. This additional module does not charge the batteries - but feeds directly into the flat grid. This ensures that both the batteries in the storage unit and the base load in the flat are supplied with solar power even when there is little irradiation.
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