Porsche’s $6,500 Wireless Charger for the Cayenne Electric: Efficiency, Cost, and How It Works

Porsche has introduced a wireless charging system for its all-electric Cayenne Electric, designed to eliminate the need for cables while delivering high efficiency and convenience. The system, which supports up to 11 kW of charging power, is positioned as a premium option for home charging.

How Porsche’s Wireless Charger Works

The wireless charging system consists of two main components: a base plate and a receiver coil integrated into the Cayenne Electric. The base plate, weighing 110 lbs (50 kg), plugs into a wall socket and houses a large transmitter coil. When the Cayenne Electric is positioned above it, a secondary coil beneath the SUV receives power inductively.

The system includes special software integrated into the Cayenne Electric’s Surround View parking function. This software displays the receiver’s position near the front axle, while a green circle indicates the base plate’s location. To start charging, the driver simply aligns the green dot inside the circle.

Before charging begins, the system automatically exchanges data, including a password, to prevent potential electricity theft. Porsche emphasizes that the base plate is fully waterproof and includes sensors to detect foreign objects, stopping charging immediately if an obstruction is detected.

Efficiency and Performance

Porsche’s engineers report that the wireless charging system delivers between 89% and 92% efficiency in real-world use, exceeding the 85% minimum required by the applicable charging standard. This is a significant improvement over the 60% efficiency of Level 1 wired charging using a standard household outlet.

Jason Fenske of Engineering Explained notes that Porsche’s own US mobile connector caps at 9.6 kW, making the wireless option faster for American owners. The inductive charging system supports up to 11 kW, providing a seamless and efficient charging experience.

Cost and Availability

The wireless charging system comes with a hefty price tag. In the UK, the entire setup is expected to cost around £6,750 ($9,125), with the base plate alone priced at £4,750 ($6,421). In the US, the ground pad is said to be priced at about $6,500 before taxes.

Despite the high upfront cost, Porsche highlights the system’s convenience and ease of use as key advantages. Michael Steiner, Porsche’s R&D boss, stated,

"Ease of use, suitability for everyday use, and charging infrastructure are still the decisive factors when it comes to the acceptance of electric mobility. We are proud that inductive charging will soon be available in series production at Porsche. Charging an electric car at home has never been so easy and convenient."

Key Takeaways

• The wireless charger for the Porsche Cayenne Electric supports up to 11 kW of power.
• Real-world efficiency ranges from 89% to 92%, outperforming wired Level 1 charging.
• The base plate weighs 110 lbs (50 kg) and includes safety features like waterproofing and foreign object detection.
• In the US, the ground pad costs about $6,500 before taxes; in the UK, the full setup is priced at £6,750 ($9,125).
• Porsche emphasizes the system’s convenience and ease of use as key selling points.