Trade Fair Premiere: Kontron Sets New Standards in PV Surplus Charging

Intelligent complete solution for sustainable charging with your own solar power

Linz, March 31, 2025 - Kontron, a leading global provider of IoT/Embedded Computer Technology (ECT), is presenting its integrated PV surplus charging solution for the first time at Power2Drive Europe in Munich. At the joint booth of its subsidiaries eSystems MTG GmbH and Kontron Solar GmbH (Hall C6, Booth 110, 7–9 May 2025), the Austrian IoT company will be showcasing a technology that optimizes the charging of electric vehicles using self-generated solar power. The SolBrid hybrid inverter and a smart wallbox developed by e-mobility subsidiary eSystems enable uninterrupted PV charging, precise charge monitoring, and battery storage monitoring. Standardized interfaces ensure seamless integration with external energy management and control systems.
 
“PV surplus charging is critical to the success of e-mobility”, explains Hannes Niederhauser, CEO of Kontron AG. “Electric vehicles can be charged 100 percent sustainably and cost-effectively with your own solar power. At the same time, PV-based home charging relieves pressure on the power grid and drives the energy transition. ”With technologically leading industry solutions like the SolBrid hybrid inverter from Kontron Solar and the wallbox ghostONE from eSystems, Kontron now offers a fully integrated solution for optimized PV surplus charging — all under one roof.
 
Maximizing the Use of Solar Energy
 
The overall system is designed to optimize the use of solar energy: Up to four MPP trackers maximize the PV input power of the SolBrid hybrid inverter. Thanks to its implementation of the ISO 15118 standard, the intelligent wallbox can supply the EV continuously with solar energy . This standard allows for signaling of very low charging currents per phase. A minimum charging power of 1.4 kW or less can be achieved without switching between phases — provided the electric vehicle also supports ISO 15118. For vehicles that do not, eSystems offers a 3-1 phase switching function as part of the wallbox.
 
“The growth of e-mobility requires completely new approaches to home charging”, stresses Jochen Paukert, Managing Director at eSystems. “That’s why our wallbox is a platform packed with smart features and connected functions.” The wallbox is available in two versions: as a fully customizable white-label product (‘ghostONE’), tailored to the customer’s brand and requirements. Secondly, as an immediately available solution under the Kontron Solar brand. Both versions are compatible with nearly all electric and hybrid vehicles. In addition to ISO 15118, the wallbox supports the EEBUS protocol for smart home integration. It implements the EEBUS use case ‘Limitation of Power’ (LPC), making it compliant with §14a of the German Energy Industry Act (EnWG) and thus grid-friendly. A version compliant with calibration law is also available. The charging system is also optimally protected against hacker attacks: It fulfils the new European Radio Equipment Directives (RED), which comes into effect in summer 2025.
 
Standardized Interfaces
 
The flexible SolBrid hybrid inverter supports a wide range of system configurations — from complex roof layouts to hybrid storage solutions. When combined with the Grid Switch disconnector, the system offers additional functionality such as emergency power operation, real-time energy measurement, and precise energy monitoring. Grid disconnector and energy meters connect via standardized interfaces, and multiple high-voltage battery systems are supported. SolBrid also supports the manufacturer-independent SunSpec communication protocol and offers connectivity via WLAN and LAN.
 
Kontron AG has bundled its expertise in PV charging in recent years: Following the acquisitions of eSystems MTG GmbH and Katek Memmingen GmbH (now Kontron Solar), the company is pursuing a strategy to unlock the full potential of solar-powered charging and contribute meaningfully to the energy transition. Hannes Niederhauser, CEO of Kontron AG, adds: “We offer comprehensive solutions for sustainable charging from a single source — from the inverter and grid disconnector to the smart wallbox. All components are perfectly coordinated.”

Further information:

A photograph in high resolution is provided here: https://cloud.profil-pr.com/index.php/s/yxfxML6ezW3z3tJ

###

About Kontron

Kontron AG (www.kontron.com, ISIN AT0000A0E9W5, WKN A0X9EJ, KTN) is a leading IoT technology company. For more than 20 years, Kontron has been helping companies from a wide range of industries to achieve economic goals with intelligent solutions. From automated industrial processes, smarter and safer transport to advanced communication, connectivity, medical and energy solutions, the company offers its customers value-adding technologies. With the acquisition of Katek SE at the beginning of 2024, Kontron is significantly strengthening its portfolio with the new GreenTec division with the areas of solar energy and eMobility and employs around 7,000 people in more than 20 countries worldwide. Kontron is listed on the SDAX^® and TecDAX^® of the German Stock Exchange.

###

Follow Kontron:
· Kontron on LinkedIn
· News about Kontron can also be found in the official Kontron blog
 

###

Media Contact:

Alexandra Kentros
Kontron AG - Communications
Tel: +49 151 151 9388 1
group-pr@kontron.com

###

All rights reserved. Kontron is a trademark or registered trademark of Kontron Europe GmbH. All other brand or product names are trademarks or registered trademarks or copyrights by their respective owners and are recognized. All data is for information purposes only and not guaranteed for legal purposes. Subject to change without notice. Information in this press release has been carefully checked and is believed to be accurate; however, no responsibility is assumed for inaccuracies.