# Winduction wireless electric bus charging technology > Live situation record from CLSTR: https://clstr.news/situations/winduction-wireless-electric-bus-charging-technology > Updated: 2026-10-17T04:48:51.000Z. Sources: 8. Developments: 2. Winduction, a Swiss startup and spin-off from ETH Zurich, is developing a wireless charging system for electric buses that integrates receiving coils directly into specialized tires. This method differs from traditional wireless charging by placing coils in the tires rather than under the vehicle chassis, which minimizes the distance to charging plates in the road and increases efficiency. The company reports a system efficiency exceeding 90%. By allowing buses to recharge briefly at stops, the technology aims to reduce the need for heavy, expensive batteries, thereby lowering vehicle weight, decreasing manufacturing costs, and increasing passenger capacity. To address technical challenges such as heat loss caused by steel wires in standard tires, Winduction is developing specialized steel-free tires. The company plans to conduct real-world field tests in Winterthur, Switzerland, with a goal of launching a passenger transport pilot project by 2028. ## Timeline ### 2026-10-17: Winduction develops wireless charging for electric buses via tires Swiss startup Winduction is developing wireless charging technology for electric buses by integrating receiving coils directly into specialized tires to improve efficiency and reduce battery weight. 2 sources. https://clstr.news/cluster/winduction-develops-wireless-charging-for-electric-buses-via-tires ### 2026-10-06: Winduction develops wireless charging system for electric buses via tires Swiss startup Winduction has developed a wireless charging system for electric buses that uses coils inside specialized tires to achieve over 90% efficiency, potentially allowing for smaller, lighter batteries. 6 sources. https://clstr.news/cluster/winduction-develops-high-efficiency-wireless-charging-for-electric-buses --- Cite as: Winduction wireless electric bus charging technology. CLSTR, https://clstr.news/situations/winduction-wireless-electric-bus-charging-technology