With the power calculator to the right battery storage

With the storage computer, homeowners can quickly and easily find out how much electricity they could actually save from the grid with a PV system and battery storage. The online tool shows the possible share of own consumption and degree of self-sufficiency and recommends the optimum storage size for the respective household.


• programming
• screen design
• layout
• illustration
• editorial office
• engineering



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The calculations are based on a consumption profile that reflects a typical single-family household. In contrast to standard computers, it is based on the assumption that the family consumes electricity in the evenings and at weekends rather than during the day during the week. The load profile has been developed in cooperation with the Berlin University of Applied Sciences.

Particularly pleasant for the user: The calculation result appears at the same time as the personal data is entered, e.g. annual household electricity consumption. Thanks to the responsive programming, the calculator can also be used on various end devices such as tablets and smartphones.