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At the IAA Mobility 2021, the MAHLE technology group announced that it is expanding its intelligent charging solutions for electric cars. With the newly introduced chargeBIG Power charging management system, the nearly 1,000 chargeBIG charging points that have been installed for long-term parking are an important addition to fast charging with outputs of up to 750 kW. chargeBIG Power builds on the proven chargeBIG principle: the charging management system can be economically integrated into the existing infrastructure; particularly on long-distance routes, where there is still a lack of fast-charging options. Thanks to the intelligent control of the load distribution in the power grid, the charging system enables as many electric vehicles as possible to be charged from the available power supply at the same time. By selecting the tariff, the user can order the charging capacity that fits the electric vehicle and travel plan. And the charging points are very easy to operate.

Fast-charging systems encourage the acceptance of electric vehicles. With the expansion of its chargeBIG range, MAHLE is emphasizing its commitment to accelerate the transformation toward sustainable mobility. The company’s future focus is on a triad of sustainable drives comprising the electric motor, the fuel cell, and the use of nonfossil fuels in the intelligent combustion engine.

On World Electric Car Day (World EV Day) on September 9, MAHLE’s e-mobility activities can be experienced in all its facets. The technology group is currently showcasing its broad e-mobility innovation range from charging technologies via battery systems to electric motors at the leading IAA Mobility trade fair in Munich/Germany. MAHLE is represented at the Open Space (Königsplatz) and at the Mobility Summit (exhibition center).


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On June 29th, the chargeBIG charging solution was realized at Marquard & Bahls AG in Hamburg. Marquard & Bahls chose the future-proof charging solution from MAHLE, because chargeBIG can be easily expanded and complies with legal requirements of the calibration law. Currently, 32 charging points are already installed on two parking levels, which means almost a quarter of all employee parking spaces are electrified. In the future, additional 32 charging points can be added without incurring any further costs for the sub-distribution cabinets. Only the costs for the charging points and the installation have to be spent in the second expansion step. With regards to the hardware, the fully equipped charging cabinets can regulate a maximum of 30 single-phase charging points and offer dynamic charging powers of up to 7.2kW, ideal for day parking. Two three-phase charging points with charging power of 22kW are also integrated into the charging cabinets. These fast-charging points can be used by visitors, suppliers or fleet vehicles that need to be recharged faster in less time.

The charging points are initially free of charge and accessible without authentication. At a later point in time, the payment system can be activated. The charging points are then accessed via the chargeBIG smartphone app and the QR code scan or via NFC. The chargeBIG service can be used to bill consumers via ad hoc payment for the energy consumed or free of charge via access code.

The international standard OpenADR was implemented at the charging infrastructure of Marquard & Bahls. The protocol allows the grid operator to control the chargeBIG charging infrastructure and reduce the load on the distribution grid in an emergency. The implementation of this function was a requirement for the funding approval in the ELBE project. By realizing OpenADR, cost-intensive expansion of the grid could be minimized respectively avoided.

By electrifying the parking spaces, Marquard & Bahls motivates its employees to buy an electric car or a plug-in hybrid. The electrification of its own vehicle fleet is also progressing. Thus, the company is making a positive contribution to climate protection and the reduction of CO2 and local emissions. About Marquard & Bahls AG: Founded in 1947, Marquard & Bahls has grown into an agile independent holding company in the energy & chemical sector. Its core lines of business include tank storage logistics and energy trading. Through its subsidiaries, Marquard & Bahls has a presence in 29 countries in Europe, America, Asia and Africa and employs about 4,300 people. The vision is to be a successful ethical investor supporting human development.

On 13 July, Marita Funk, mayor of the city of Lorch and the neighbouring municipalities, visited the MAHLE plant in Lorch. Mrs. Funk was welcomed by the plant manager Jochen Scholz and the chargeBIG team. The personal acquaintance began with a look into the history of the plant, which dates back to 1954. Afterwards, they visited the recently built charging infrastructure for electric cars at the site. The potential cooperation between the city of Lorch and chargeBIG in the area of the public charging – for example at the local train station – was also discussed. The visit ended with an informative tour through the plant production areas of aluminium, sheet metal and plastic. In Lorch, a wide variety of technical parts, assemblies and end products for the combustion engine and for new fields of e-mobility are manufactured across all three material areas.

In March, a fully equipped charging cabinet with 36 single-phase charging points was put into operation at Cronimet in Karlsruhe. The project was implemented together with the partners eliso and Heldele. The charging points are used by the employees and company car owners of Cronimet and are initially accessible free of charge. At a later point in time, the payment system can be retrofitted. The supply cable to the charging cabinet is able to connect to a second charging cabinet and thus 36 charging points can be easily installed in the future.

About Cronimet: The CRONIMET Holding Group, headquartered in Karlsruhe, is a global specialist for stainless steel scrap, ferro-alloys and primary metals. The company has been supplying raw materials for the stainless steel producing industry for four decades. The focus is on retail & sales, recycling and production & services. The CRONIMET Holding Group was founded in 1980 and today has a global presence with more than 1,500 employees at more than 70 locations.

MAHLE’s corporate start-up chargeBIG has successfully passed the VDE’s certification procedure with its charging solution for electric vehicles. This means that chargeBIG, with the support of the calibration authorities in the relevant federal states, can now bill customers in compliance with the German Measurement and Verification Act—that is to say, in a manner that delivers precise, traceable, permanently verifiable, and storable data. chargeBIG is also the first provider in Germany to offer its customers the option of tracking charging progress via a regulation-compliant display on a smartphone. The MAHLE start-up business has been enjoying market success since 2017 with a scalable intelligent charging solution for electric vehicles, which is particularly suitable for vehicles that are left in a parking lot all day or for long periods. The chargeBIG system allows electricity to be supplied to as many parking spaces as possible at the lowest cost possible. Customers include Stuttgart Airport, the International Solar Energy Research Center in Konstanz, Cronimet Ferroleg GmbH, Schulz Group GmbH, and Landesbank Baden-Württemberg.

The chargeBIG app for iOS and Android or the universal web app can be used to activate correspondingly equipped chargeBIG charging points via a QR code scanner or near-field client (NFC). Users pay for their charge on an ad hoc basis using conventional methods such as credit card or PayPal. The app offers repeat customers the option of setting up a user account and storing their preferred means of payment so that fewer clicks are needed to start the charging process. For fleet customers, one-off visitors, or drivers wishing to charge company cars on their employer’s premises, chargeBIG also offers access codes for activation and billing to cost centers.

Contacts in MAHLE Corporate Communications:

Ruben Danisch
Head of Corporate and Product Communications 
Phone: +49 711 501-12199

Christopher Rimmele
Spokesperson Product, Technology and Aftermarket
Phone: +49 711 501-12374

On 17 March, Dr. Anna Christmann visited the MAHLE headquarter in Bad Cannstatt. The Member of Bundestag is already familiar with MAHLE and learned about the company’s innovation activities during her visit.
The first item on the agenda was a visit of the chargeBIG charging infrastructure, where Nicole Heinrich and Sebastian Ewert, representing the Corporate Startup, explained the technical features of the innovative charging concept. More than 100 charging points are already in operation in the car park at the MAHLE Group headquarter. During the discussion, the regulatory challenges encountered by the chargeBIG team during the project were addressed.

After the visit, Jochen Adelmann, Head of Corporate Planning, presented the MAHLE Incubator program in detail to Dr. Christmann and reported on the positive experiences associated with it. He explained the special importance of the internal innovation programs for MAHLE, as they not only produce new products and business ideas, but also bring new project processes and agile working forms into the organization. Dr. Christmann showed great interest and was particularly impressed by our new projects in the MAHLE Startup Space.