Rheinmetall’s Sidewalk Charging Solutions: A Closer Look
In 2022, German company Rheinmetall proposed an innovative solution to electric vehicle (EV) charging: sidewalk outlets. This initiative aims to assist those without garage access who wish to adopt electric or plug-in hybrid vehicles, providing a means to charge directly on the street rather than relying on designated charging stations.
The Pilot Test in Cologne
Three years later, the outcomes of this pilot initiative are in. In 2024, Rheinmetall launched a trial in Cologne’s Lindenthal neighborhood, which features predominantly low, individual homes. The concept is straightforward: when drivers park on the sidewalk, they find a plug concealed in a cover along the curb. By scanning a code affixed to the cover, they can connect their vehicle using a personal AC charging cable, completing payment through a mobile application.
Key Outcomes
Overall, the pilot test yielded promising results. A total of 2,800 charging cycles were recorded over the year, with an impressive average of 18 kWh recharged per vehicle. This translates to over 100 kilometers of realistic urban driving range and between 80 and 100 kilometers on highways, contingent upon vehicle efficiency.
On average, each plug was utilized two times daily, boasting a remarkable 99% availability rate, indicating minimal breakdown issues. This performance stands in stark contrast to the European and Spanish public charging averages, where public sockets are only utilized 1.5 times daily.
User Feedback
Rheinmetall surveyed users to gather insights on their experiences with the new system. It scored an impressive 4.38 out of 5, with particularly strong approval from users aged over 60 who appreciated the system’s simplicity. Notably, the rugged design of the plugs prevented water damage, and issues of vandalism were not reported.
Additionally, the design of the plug cover allows it to open with a modest push from the cable, thus eliminating the need for hand contact—an innovative user-friendly feature.
Caveats and Challenges
Despite the promising results, some challenges remain. According to forumelectriccars, each charging unit costs around €5,000, which may deter investment compared to standard home chargers. To maximize the system’s potential, sufficient street space must be reserved, similar to existing public charging points, thereby reducing availability for regular parking.
Alternatives in Public Charging
Addressing the public charging dilemma remains crucial for widespread electric vehicle adoption. Traditional electric stations offer numerous high-power plugs, while placing chargers in shopping centers allows users to recharge while conducting errands. In cities, streetlight-based charging solutions are gaining popularity in countries like Portugal and the Netherlands, utilizing infrastructure that minimizes installation costs.
Slow Charging Paradox
One significant drawback of the sidewalk charging system is the slow recharge rate. At 7.4 kW, fully charging a 60 kWh vehicle could take approximately 10 hours, making it less viable for users with immediate driving needs. While these charging solutions can be cost-effective in terms of price, they require long periods of inactivity, which can lead to operational inefficiencies.
Data suggests that most EV owners prefer charging at home or utilizing higher-powered stations, with 50 kW chargers capable of refilling batteries in under three hours—much faster for on-the-go drivers.
In conclusion, while Rheinmetall’s sidewalk outlets present an innovative solution for urban EV charging, the approach also underscores several substantial challenges that need to be addressed for sustained success.
For more on the complexities of electric vehicle charging, visit Rheinmetall.