Mazda is the latest automaker to adopt the Tesla-based North American Charging Standard (NACS) for future U.S.-market electric vehicles.
The Japanese automaker, which announced its allegiance on Jan. 16, including future Tesla Supercharger access, doesn't currently offer any U.S. EVs, but it's come down to a last few brands that have kept on the other side of the fence and haven't committed to what's become a true North American standard.
With the Biden administration's backing of the SAE standard behind NACS formalized last month—and the standard itself finalized—America is now on the path for a single fast-charging standard for electric vehicles.
Until December he VW Group had remained one of the last holdouts among major automakers, with Stellantis and Mitsubishi remaining the only ones left.
Many months ago, earlier this year, that future was not at all apparent. But the tide turned on May 25, 2023.
Ford Mustang Mach-E at Tesla Supercharger
That day, with a joint chat between Tesla CEO Elon Musk and Ford CEO Jim Farley, it was announced that Ford would adopt Tesla’s NACS connector in future EVs, starting in 2025, and that current Ford EVs would gain access to Tesla’s Supercharger network starting early 2024.
The timing fit in with Ford’s future-product announcements, directly following a preview of the company’s Gen 2 EVs, including a three-row EV that would get 350 miles of range from a battery pack of around 100 kwh.
“This is a really big deal for our customers,” Farley said then, pointing to the ease of use of Tesla’s connector and the reliability of it.
Ford wasn’t the first to announce its allegiance to the Tesla port; that nod goes to California firm Aptera, which confirmed in November 2022 its three-wheeler would include only NACS. But Ford’s commitment was, for the auto industry, the turning point.
Mercedes-Benz AMG EQE sedan at Tesla Supercharger station
Since then, the cards fell quickly and decisively, with announcements seemingly made as soon as the ink dried rather than as part of product or EV ecosystem previews. Nearly all of the automakers made announcements that included similar details—with Supercharger access in 2025 and an adapter in early or mid-2024. Click through to the corresponding pieces below for details as other automakers committed to Tesla NACS:
General Motors - June 8, 2023
Rivian - June 20
Volvo - June 27
Polestar - June 29
Mercedes-Benz - July 9
Nissan - July 19
Fisker - August 16
Honda/Acura - August 22
Jaguar (but not Land Rover) - September 21
Hyundai, Kia, and Genesis - October 5
BMW, Mini, and Rolls-Royce - October 17
Toyota and Lexus - October 20
Subaru - November 2
Lucid - November 6
Volkswagen, Audi, Porsche, and Scout - December 19
Mazda - January 16, 2024
Holdouts that still might make the leap include Stellantis and Mitsubishi.
As Green Car Reports has pointed out before, Tesla’s V4 hardware will likely be able to handle EV models that charge at 800 volts at the full rate. As for Tesla’s V3 hardware and earlier—essentially all North American hardware available on the Supercharger network at this time—those will always be limited to 400 volts or a bit higher.
Tesla Supercharger V4 cable, for up to 1 megawatt
GM’s eagerness to sign up for NACS, considering that latter point, still remains a puzzle, as the GMC Hummer EV, Chevrolet Silverado EV, and other upcoming large, 800-volt-charging vehicles with huge battery packs depend on 800 volts to keep road-trip charging times reasonable.
This dilemma some automakers face around 800-volt charging might be solved over the next couple years with two large-scale developments. One of those is Tesla’s rapid deployment of V4 Superchargers, partly in support of the Cybertruck. The other is the high-speed charging network from seven automakers that will create 30,000 connectors—all 350 kw or higher, while expected to include both CCS and NACS connectors.
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This piece was originally published on September 25, 2023 and last updated January 17, 2024.
