On Friday, Tesla issued an open call to charging network operators and other automakers to use its connector standard, which it now calls the North American Charging Standard (NACS).
The company may have already committed to the CCS standard for Europe, but as the industry converges around the CCS standard in the United States, the timing of the new NACS push makes one thing clear: not look at any time for a CCS port in American Teslas. soon, and we’re going to have two competing fast-charging standards for electric vehicles for the foreseeable future.
Of all the charging connectors in North America, NACS has the most proven track record, Tesla claims, and has twice as many as CCS. Additionally, there are 60% more NACS connectors than CCS connectors in the United States, he claims.
To analyze this in a different way, according to the US Alternative Fuels Data Center, breaking down US fast charging by type, Tesla now has more ports than CCS or CHAdeMO combined. Although by location, the travel-focused Supercharger network remains a distant third.
DC fast charging: Tesla NACS vs. CCS vs. CHAdeMO (US AFDC, Nov 2022)
Tesla also notes that it takes up half the size of the CCS, an important packaging and design consideration for electric vehicles.
It’s also the only one designed to offer AC and DC charging in the same package, now up to 1MW on the latter.
Tesla posted updated technical specifications posted for the standard last week, and says it is “actively working with relevant standards bodies to codify Tesla’s charging connector as a public standard.”
“As a purely electrical and mechanical interface independent of use case and communication protocol, NACS is simple to adopt,” Tesla said, noting that design and specification files for NACS are available for download.
This update notes an initial release of the standard in August, including new details for the standard’s 1000 volt configuration.
Tesla also noted that it “successfully operated the North American charging standard above 900 A continuously with a non-liquid-cooled vehicle input.” This is higher than what CCS allows without water cooling, and an important distinction as it can mean less complexity for charging station operators.
Tesla Supercharger connector – now called NACS
Tesla Supercharger connector – now called NACS
It says network operators “already have plans underway to integrate NACS into their chargers, so Tesla owners can expect to charge on other networks without adapters.”
Tesla’s standard shipped in the Model S from 2012 and predates the CCS, which didn’t arrive in any production EVs until late 2013 – in the Chevy Spark EV – and for the first few years was limited to a handful of niche EVs not intended for large-scale sales. The BMW i3, which arrived in 2014, was the first model with the standard to aim for volume sales.
The CHAdeMO standard for fast charging had already been around for nearly three years by then, and it was used in the road fast chargers of the Nissan Leaf and Mitsubishi i-MiEV by those who wanted to settle for those models. . limited range. Nissan is the latest automaker to currently offer vehicles in the US market, the Leaf, with the CHAdeMO fast-charging port. But with the move to CCS in the upcoming Ariya, it’s a legacy standard.
“Network operators already have plans underway to integrate NACS into their chargers, so Tesla owners can expect to charge on other networks without adapters,” the company notes.
Charging Tesla on the EVgo network
Tesla and its CEO Elon Musk have been teasing the idea of opening up the standard for years. So far, no other automaker has made public its adherence to the Tesla standard – except for Aptera and its upcoming three-wheeled solar electric vehicle – and the EVgo charging network remains the only one to have. aims to add many more Tesla chargers.
The timing of Tesla’s announcement may also have a lot to do with the formation of a massive $7.4 billion federal EV charging network requiring stations to use non-proprietary charging systems. By opening up its system and giving it a less exclusive name, Tesla could do what it needs to be included in future cycles.
Tesla V3 Supercharger Station, Las Vegas
With a layer of skepticism applied, it may also have a lot to do with Tesla’s stock value, which was at a nearly two-year low on Wednesday, in part due to Elon Musk’s Twitter misfortunes. Last November, Tesla stock saw one of its biggest spikes just after a combination of a purchase of 100,000 vehicles from Hertz and, more so, the opening of the Supercharger network to non-Tesla vehicles in Europe.
Whatever the timing, it’s clear that the battle between electric vehicle charging standards is certainly not over.
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