KOSTAL Pressebereich


KOSTAL inverters compatible with new battery storage unit from Wintersun

The KOSTAL inverters of the PLENTICORE series are compatible with the CORE series from Wintersun.   

Working with Wintersun, KOSTAL is adding two product ranges from a new storage partner to its repertoire of compatible batteries. This underlines KOSTAL's claim to have one of the most flexible inverters on the market in the form of its PLENTICORE series. No matter which generation of inverter is being used, if a new compatibility with a battery storage unit is available, a free software update is always provided that controls the new battery. 

Always up to date thanks to the AutoUpdate function

To keep the software up to date at all times, we recommend activating the AutoUpdate function in the inverter settings. Once activated, the software is always updated, e.g. to ensure the compatibility of new storage units, as in the case of Wintersun. Other areas of application, such as compatibility with heat pumps, efficiency improvements and more, are also covered by updates. This is designed to ensure that the inverter it is always at the cutting edge. It is very easy to activate the AutoUpdate function, as this video shows. 

Alternatively, the current firmware of all KOSTAL products can be found here.

The compatible CORE series in detail

The storage systems compatible with the PLENTICORE were launched by Wintersun in cooperation with a tier one battery manufacturer. There are two different systems:

• Power-CORE 1.0, with a storage capacity of 9.6 kWh to 25.6 kWh

• Energy-Core 1.0, with a storage capacity of 5.52 kWh to 18.8 kWh

Both the Energy-CORE and Power-CORE versions are modular and thanks to their plug-and-play design, both battery modules can be installed with ease. With their compact dimensions of 17.5 cm in height, 65 cm in width and 26 cm in depth per module, these systems are easy to accommodate. Automatic configuration also ensures convenient and easy commissioning. In addition, a maximum storage capacity of 153.6 kWh can be achieved by connecting up to six towers in parallel. When installing the storage unit, customers should check whether a new update is available because the CORE software SW02.08 is essential for compatibility to work.

"Customer requirements for planning a PV system are getting more and more demanding. What they want is the greatest possible flexibility in system design, making their own energy supply from renewable sources possible. We are taking this development into account when it comes to compatibility with other battery storage systems," says Andreas Schmalenberg, Product Manager at KOSTAL.


Smart inverters with convenient and large storage units

The PLENTICORE inverters and also the CORE storage system from Wintersun have an IP65 protection rating and can therefore be used indoors and outdoors. The Wintersun storage units function perfectly within an ambient temperature range of -10°C to +55°C.

Depending on the layout, the voltage range varies between 120 and 600 volts, with a maximum charge/discharge current of 26 amps for the PLENTICORE BI and Energy-CORE storage unit. When combined with the Power-CORE storage unit, this figure is 25 amps. The PLENTICORE plus, meanwhile, delivers 13 amps.

This creates a charge/discharge power of 2.5-6.5 kW (PLENTICORE plus) or up to 10 kW (PLENTICORE BI), which guarantees the supply. For this purpose, PLENTICORE inverters are equipped with special safety components in accordance with regulations and ensure trouble-free operation. In addition, both CORE series offer protection from overvoltage, overcurrent and short circuits.


KOSTAL hybrid and battery inverters

The PLENTICORE plus hybrid inverter is the perfect all-round solution for a wide range of system configurations and offers easy connection to both Wintersun CORE series. The PLENTICORE plus has an output of between 3 and 10 kW. When two or more units are used, even higher outputs are possible. It provides dynamic regulation, delivering the greatest possible amount of self-produced electricity at the right time.

The PLENTICORE BI battery inverter is available in the 5.5 and 10 kW power classes, with an input current of 26 amps. This makes the KOSTAL battery inverter a perfect candidate for expanding an existing PV system by adding the Wintersun battery storage unit.

"The features of the KOSTAL inverters are impressive," says Andreas Schmalenberg. "They offer intelligent shadow management, high efficiency, maximum flexibility thanks to common state-of-the-art interfaces and a range of layout options thanks to their flexible string design, which also makes them suitable for both home and commercial use."

Note: The KOSTAL inverters of the PLENTICORE series can be easily connected to the Wintersun battery storage units using the KOSTAL Smart Energy Meter and the KOSTAL Energy Meter. 

Please always refer to the overview of our approved batteries.