A pioneering project in Gothenburg that has been testing wireless charging for electric taxis is expanding, marking a significant step forward in the quest for a seamless and efficient electric vehicle (EV) infrastructure. A new wireless charging station is being installed at the Swedish Exhibition & Congress Centre and Gothia Towers, a bustling hub in the heart of the city. This development builds on the success of a three-year trial that has seen a fleet of electric Volvo XC40s wirelessly charge on the city's streets, heralding a future where cumbersome cables could become a thing of the past for EV drivers.
The expansion is a collaboration between Business Region Göteborg, the American wireless charging specialists InductEV (formerly Momentum Dynamics), and Svenska Mässan Gothia Towers. It represents a vote of confidence in the viability of inductive charging, a technology that allows EVs to be charged by simply parking over a charging pad embedded in the ground. The new station will provide a crucial charging point for the city's growing fleet of electric taxis, further solidifying Gothenburg's reputation as a leader in sustainable urban mobility.
This initiative is a key component of the ambitious Gothenburg Green City Zone, a designated area within the city where new and innovative sustainable technologies are tested in a real-world environment. The overarching goal of the Gothenburg Green City Zone is to achieve a completely emission-free transport system by 2030, a target that requires a radical rethink of how vehicles are powered.
The initial phase of the wireless charging project, which commenced in 2022, has been a resounding success. A fleet of 20 specially adapted Volvo XC40 Recharge taxis, operated by Cabonline, the largest taxi operator in the Nordic region, have been utilising two wireless charging stations at Lindholmen Science Park. These stations, equipped with four in-ground chargers each delivering up to 75 kW of power, have provided invaluable data and insights into the practical application of wireless charging technology.
The results from the three-year trial are compelling. The charging stations have demonstrated 100% uptime, a critical factor for commercial operators who cannot afford downtime. Over the course of the trial, there have been 10,000 charging events, with 140 megawatt-hours (MWh) of energy transferred to the electric taxis. The fleet has covered a remarkable 5 million kilometres, the equivalent of circling the globe more than 100 times, all powered by this innovative wireless technology.
Perhaps most importantly, the feedback from the taxi drivers who have been using the system on a daily basis has been overwhelmingly positive. They have praised the convenience and ease of use of the “hands-free” operation, which eliminates the need to handle heavy and often dirty charging cables. This is particularly beneficial at high-traffic locations such as train stations, airports, and hotels, where quick and efficient turnarounds are essential. The system has also proven its resilience, operating flawlessly in the challenging Nordic climate, with rain, snow, ice, and dirt posing no obstacle to the transfer of energy.
The technology at the heart of this project is provided by InductEV, a company at the forefront of wireless charging innovation. Their system works by using a transmitter pad installed in the road to send energy wirelessly to a receiver unit fitted to the underside of the vehicle. The charging process begins automatically when the vehicle is parked over the pad, with the driver able to monitor the charging status from within the car. The charging speeds are impressive, with the 75 kW chargers able to provide a significant boost to the vehicle's battery in a short amount of time, making it ideal for the short but frequent charging sessions that are typical for a taxi in a city environment.
With the expansion of the project, InductEV will also be taking over the operational control of all three of Gothenburg's wireless charging stations, launching its first “charging-as-a-service” offering. This move signals a transition from a research and development phase to a more commercially-focused operation, a clear indication of the technology's maturity.
The Gothenburg Green City Zone, which provides the framework for this and other innovative projects, is a unique collaboration between the City of Gothenburg, Volvo Cars, and RISE Research Institutes of Sweden. It serves as a living laboratory for the development of a sustainable and efficient transport system, exploring not just new technologies but also new business models and user behaviours. The initiative is not just about replacing fossil fuel-powered vehicles with electric ones; it is about creating a holistic and integrated system that is both environmentally friendly and user-friendly.
The success of the wireless charging project has significant implications for the future of electric mobility, not just in Gothenburg but globally. For commercial fleet operators, such as taxi and delivery companies, the ability to charge vehicles wirelessly and automatically can lead to significant efficiency gains and cost savings. It also opens up the possibility of “opportunity charging,” where vehicles can be topped up with power while waiting for passengers or during loading and unloading, effectively extending their operational range and reducing the need for large and expensive batteries.
Furthermore, the discreet nature of the in-ground charging infrastructure offers aesthetic and practical advantages in an urban environment. Unlike traditional charging stations with their prominent posts and cables, wireless charging pads are virtually invisible, preserving the visual character of the cityscape. This is a particularly important consideration in historic city centres and other areas where there is a desire to minimise visual clutter.
The project also showcases the importance of collaboration between the public and private sectors in driving innovation. The partnership between the City of Gothenburg, a global car manufacturer like Volvo, and a technology specialist like InductEV has created a dynamic ecosystem where new ideas can be tested and refined in a real-world setting. This collaborative approach is essential for overcoming the complex challenges associated with the transition to a sustainable transport system.
Looking ahead, the expansion of the wireless charging project in Gothenburg is just the beginning. The data and experience gained from this initiative will be invaluable for the further development and deployment of the technology. As the world increasingly embraces electric mobility, the demand for convenient, reliable, and efficient charging solutions will only grow. The pioneering work being done in Gothenburg is paving the way for a future where charging an electric vehicle is as simple as parking it, a future that is not just possible, but is already becoming a reality on the streets of this forward-thinking Swedish city. The lessons learned here will undoubtedly influence the development of EV infrastructure around the world for years to come.
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