We're still in the early days of EVs and in the even earlier days of wireless charging for said electrified cars, which means it's as good a time as any to establish a standard for wireless charging. Right now pretty much the only available wireless EV charging option comes Plugless Power (they just announced a Tesla-compatible version just a month ago), so having a standard that should be applicable across many vehicles might help accelerate adoptions: and thus that's why the SAE International today approved the oh-so-sexily-named SAE TIR J2954.

Plugless Power's own proprietary EV wireless charging system picked up support for the Tesla Model S just last month. Plugless Power's proprietary EV wireless charging system added support for the Tesla Model S just last month.

SAE International (formerly known as the Society of Automotive Engineers) previously offered the J1772 connector in 2009 to standardize electric vehicle charging across the board. While J1772 is far from the only EV charging connector, it is the most ubiquitous. Tesla cars use their own proprietary connector, but at least Tesla includes an adapter for J1772 when you purchase a car so you can use it at the numerous public charging stations around the world. Tesla's choice of a proprietary charging connector wasn't merely to "do it better" (though one could argue that it in fact is a better connector), but instead to allow support for Tesla's Supercharger network, an external DC charger that pours power into cars at a high rate.

Work on the new wireless charging standard started back in 2010, so you can be sure that the fine folks at SAE took their time in working to get it right. The current revision of J2954 provides for charging at 3.7kW and 7.7kW (Plugless runs at 7.2kW), though they're also working on support for 11kW and 22kW — with possible future support for even higher wattages for even faster charging.

There's no saying when J2954-compatible wireless chargers will start rolling out and getting slapped onto pavement around the world. It's less of a chicken-and-the-egg problem as with standard EV chargers and the cars themselves, but car manufacturers will be hesitant to build in support for the standard while charging hardware makers will hesitate to make chargers without compatible cars. And it's almost certain that unless we can get everybody to agree on where on the car a J2954 receiver would be located, such wireless chargers will be limited to home installs tailored to your specific car.