Porsche has developed a wireless charging system for its next generation battery-electric vehicles, designed to deliver AC charging performance of up to 11 kW without the need for a cable or wallbox. The system is based around a flat floor plate containing transmitter coils which, when connected to the grid, transfers energy inductively to a receiver unit integrated into the underbody of the vehicle. The first production application will be the Cayenne Electric, scheduled for launch at the end of 2025, with floor plate sales through Porsche Centres and the online shop from 2026.

The technology achieves up to 90% efficiency, comparable with conventional wired AC charging. Porsche’s customer data shows that around three quarters of all EV charging takes place at home, positioning inductive charging as a key convenience feature.

The floor plate measures 117 cm by 78 cm by 6 cm and weighs 50 kg. It can be installed indoors or outdoors and connects directly to the mains supply without the need for additional control hardware. Installation support can be provided by Porsche’s service network. The corresponding vehicle-side receiver sits between the front wheels. During charging the Cayenne lowers automatically to minimise the air gap, improving transfer efficiency. The Surround View parking system assists the driver in aligning the vehicle above the plate, with charging beginning automatically once the parking brake is engaged.

Safety measures include object detection and motion sensors that pause operation if foreign objects, people or animals enter the charging field. Customers monitor and manage charging via the My Porsche app, which also authenticates multiple vehicles. Functions such as timed charging and pre-conditioning remain available. Connectivity is built in through LTE and WLAN modules, enabling over-the-air software updates.

The underlying principle uses alternating current in copper and ferrite coils to generate a magnetic field, which induces alternating current in the vehicle receiver coil. A rectifier then converts this to DC for storage in the high-voltage traction battery. Ultra-wideband positioning technology ensures that the vehicle and plate are aligned correctly prior to transfer.

Porsche has tested the system extensively for outdoor conditions, with certification from TÜV Süd. The plate meets CE and UL safety and environmental standards, and electromagnetic emissions during operation are confined to the area beneath the vehicle.

Alongside the inductive system, the Cayenne Electric also introduces 400 kW peak DC fast charging, exceeding the Taycan’s 320 kW and the Macan Electric’s 270 kW. Compatibility with Porsche Charging Lounge sites aims to reduce stop times for long-distance travel.

At IAA Mobility 2025 in Munich, Porsche will also show a prototype Cayenne featuring an electroluminescent coating. This multilayer finish incorporates electrode, insulating and pigment elements that emit light under alternating voltage, creating patterned visual effects in blue to violet. More than 25 functional film layers, 15 clearcoat layers, 100 litres of varnish and around 500 m of wiring were required for its construction.

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