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Using our power storage unit as an example, we explain what types of power storage units there are, what is the optimal storage size and which systems have the smallest losses? What influence does the heat pump have on this? Can 100% self-sufficiency be achieved in winter with a power storage unit with a heat pump? Link to HTW Berlin regarding power storage inspection 2020: https://pvspeicher.htw-berlin.de/spei... The video shows products with names that I bought myself. I have not received any donations from the manufacturer of these products. Nevertheless, this product placement can be seen as advertising. The inverter is a Fronius Symo Gen24 6.0+ in combination with a BYD HVS 10.2 power storage unit. This system offers charging/discharging power of up to 6.22kW and an automatic emergency power supply for the entire house with three-phase current of up to 6kW. Please subscribe to me if you like these topics here and are interested. A subscription is free for you, without any obligations and can be canceled at any time. However, it helps me a lot to continue to present you with interesting and valuable content.