In addition to new PV systems, it is also worth retrofitting old PV installations with a battery system, for instance, if these are no longer eligible for subsidies. Therefore, SMA Solar Technology AG is now making storage solutions with the proven Sunny Boy Storage 3.7–6.0 even more flexible. With the AC-coupled solution, users can easily and flexibly integrate battery-storage systems into both new and existing PV systems and expand the storage capacity at any time without having to interfere with the PV system.
Emergency power function and backup supply
Generating and storing solar power is now so cost-effective that today many PV systems are installed with battery-storage systems already included. But often, owners of older PV systems would also like to use more solar power themselves or expand a battery-storage system that is now too small because they have bought an electric car, for example. “In any situation, the Sunny Boy Storage 3.7–6.0 is the ideal solution thanks to its high degree of flexibility and integrated functions,” explained Thomas Thierschmidt, Platform Product Manager at SMA. “In addition to the standard functions of a battery inverter, the Sunny Boy Storage 3.7–6.0 provides an emergency power supply function as standard. Furthermore, it can be expanded by adding a backup system to supply the entire household in the event of a power outage. The AC coupling also means there is no need to interfere with the PV system to integrate batteries with the Sunny Boy Storage 3.7–6.0 or increase the storage capacity. Conversely, the PV system can also be expanded independently of the storage system. This makes life particularly straightforward and saves resources for installers and system owners.”
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To provide the best storage solution for every customer and to enable it to adapt to changing needs anytime, SMA works closely with all leading battery manufacturers. The Sunny Boy Storage 3.7–6.0 can integrate up to three batteries – regardless of whether commissioning was carried out with only one battery, for example. With the recent firmware update, the Sunny Boy Storage 3.7–6.0 is now also compatible with the latest high-voltage batteries BMZ Hyperion, IBC SOLAR era: powerbase, AXITEC AXIstorage LI SH as well as BYD Battery-Box Premium HVM and Battery-Box Premium HVS. In addition, the LG Chem RESU10M – which, like all other high-voltage batteries from LG, has already been compatible with the Sunny Boy Storage 3.7–6.0 for quite some time – has now also been approved for multi-battery operation and the emergency power supply function. (mfo)
