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The TS 48 V system is compatible with ONGRID and OFFGRID business cases.

A TESVOLT battery module has a capacity of 4.8 kWh. Additionally you will receive our Active Power Unit (APU), that controls and monitors your modules.
Depending on the amount of required modules, which is displayed below the nominal values, select the desired cabinet type (TS 25 / TS 40 / TS 50).
Within the product configurator you will be able to see the measurements including tilt height (IMPORTANT! Compare tilt height and room measurements of the installation site when deciding on a cabinet type) of the different types of cabinet.
Should you be interested in two different cabinet types for one installation, please contact our customer service.


Two APUs are added for a 3-phase OFFGRID system. In 1-phase OFFGRID systems and ONGRID systems one APU is sufficient for up to 16 battery modules.

In Germany applications with more than 3 Sunny Islands for an ONGRID business case, so-called multicluster systems, are not available (see also: Warning: "This configuration is not available in Germany"). 
If your delivery is to go outside of Germany, please ignore the message in the configurator.