KOSTAL Pressebereich
Freiburg, 23/11/2022

KOSTAL inverters compatible with new LG Energy Solution battery storage systems

The KOSTAL inverters of the PLENTICORE series can now be used with the three high-voltage batteries of the LG Energy Solution RESU FLEX series.

KOSTAL inverters compatible with new LG Energy Solution battery storage systems

KOSTAL Solar Electric believes in smart connections. This is now reflected in the compatibility between the KOSTAL inverters of the PLENTICORE series and the RESU FLEX battery storage units from LG Energy Solution (LGES; KRX: 373220).

There are increasing demands for energy self-sufficiency from renewable sources with high flexibility, so the challenge for the KOSTAL-LGES system lies primarily in delivering efficient output. The KOSTAL PLENTICORE plus and PLENTICORE BI inverters together with LGES storage units form a modern duo for greater independence when generating solar energy. The RESU FLEX high-voltage NMC battery offers a usable storage capacity of 8.6 kWh to 17.2 kWh.

Stefan Krokowski, sales manager at LG Energy Solution, explains the benefit for consumers that KOSTAL is also pushing forward in terms of inverter technology: "With its pioneering battery performance level, the new LGES RESU series was developed to give consumers new freedom with energy self-sufficiency." "In combination with KOSTAL inverters, this means that every consumer can get the product they want," says Thomas Garber, Senior Product Manager at KOSTAL Solar Electric.

When it comes to partnerships, KOSTAL sets the standard very high with regard to flexibility, efficiency and safety.

Smart inverters meet powerful storage systems

Both the PLENTICORE inverters (IP65) and the LGES RESU FLEX storage system (IP55) can be used indoors and outdoors. Whether they are installed in the basement, utility room or simply on the outside wall of a house, the storage modules run smoothly at ambient temperatures of between -10 and +50 degrees – for use in homes and businesses.

LGES RESU FLEX relies on a modular solution that is suitable for wall and floor mounting. It is also flexibly expandable and easy to handle. Each module unit has a dimensional depth of 14.8 cm, showing just how compact the storage system is. The basic equipment consists of three main components: a control unit and at least two battery modules, each with a capacity of 4.3 kWh, make up the RESU FLEX storage system.

Depending on the layout, the voltage range varies between 192 and 531.2 volts, with a maximum charge/discharge current of 22 amps for the PLENTICORE BI and 13 amps for the PLENTICORE plus. 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. LGES RESU FLEX also offers sufficient protection against overvoltage, overcurrent and short circuits.

RS485 is used to communicate with the PLENTICORE inverter. It is easy to commission and monitor the solution using the free KOSTAL Solar App. The result is a powerful solar storage duo for more self-sufficiency.

KOSTAL hybrid and battery inverters

The PLENTICORE plus as a hybrid inverter is the perfect all-round solution for all conceivable system configurations and offers a simple connection to LGES RESU FLEX. As a true all-rounder, the PLENTICORE plus has a stand-alone output of between 3 kW and 10 kW and can also achieve higher outputs when two or more devices are interconnected. It provides dynamic regulation, providing the greatest possible amount of self-produced electricity at the right time.

The PLENTICORE BI also has compact dimensions. The battery inverter is a real powerhouse for daily use and is available in the power classes 5.5 kW and 10 kW, with an input current of 26 amps. This makes the battery inverter from KOSTAL a perfect candidate for expanding an existing PV system.

"The features of the KOSTAL inverters leave nothing to be desired," says Thomas Garber. "They offer intelligent shadow management, high efficiency, ease of integration 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 connected directly to the LG Energy Solution battery storage units using the KOSTAL Smart Energy Meter and the KOSTAL Energy Meter.

With KOSTAL AutoUpdate, all software updates are imported automatically (including retroactive updates for earlier inverter models) for easy control of compatible battery partners – without further intervention.