With a System Performance Index (SPI) of 91.4% our DC-coupled storage solution is a step ahead. This was scientifically confirmed by the current study "Stromspeicher-Inspektion 2018" by the Hochschule für Technik und Wirtschaft (HTW) Berlin*.
It's nice for us, but what does it mean to you?
With our storage system consisting of the PLENTICORE plus 5.5 and the BYD Battery-Box H11.5 you save the most electricity costs per year in comparison with other storage systems.
But there is another financial advantage that our storage solution provides you with: Compared to other systems that require two inverters, our combination does not require any additional devices, because the PLENTICORE plus takes over the energy management for the PV system and the battery at the same time. This saves you initial investment costs.
Here are the results of the study*