Tesla approves US supercharger plug design

Tesla has approved the design of its proprietary Supercharger plug in North America. Car manufacturers and charging network operators are encouraged to use supercharger plugs and sockets in the future. Tesla wants to make its system the charging standard in North America.

In contrast to Europe, where CCS – more precisely in combination with the type 2 plug as CCS2 – has established itself as the fast charging standard, Tesla is clearly targeting the North American market with the release and confidently calls its system “North American Charging” on its website Standard ” (NACS). According to Tesla, the system combines AC charging and DC charging with “up to 1 MW” in one slim package. It has no moving parts and is “half the size and twice as powerful as CCS connectors”.

The CCS1 system is usually used in the USA for electric cars from other manufacturers: The lower DC part of the plug and charging plug corresponds to the CCS2 known in Europe, but at the top there is a type 1 plug/socket instead of type 2 located. Manufacturer-independent charging operators such as Electrify America and EVgo rely on this CCS1 standard.

Exactly how DC charging “with up to 1 MW” is to be achieved is left open in the blog post – Tesla does not provide any information about cooling. The “Electrek” portal reviewed some details of the Tesla release, finally the design and specification files were released for download. There are two versions with 500 and 1,000 volts, but they are interoperable – a 500 volt plug can also be plugged into a 1,000 volt outlet.

Elsewhere in the documents, Tesla states that the NACS was operated “with a non-liquid-cooled vehicle intake” of over 900 amps continuously. If the 1,000 volts are then used as a basis, the calculated charging power would be up to 900 kilowatts. This is not quite the one megawatt announced in the blog post, but it is at least a concrete statement. Although concrete charging systems in production cars are unlikely to use 900 amps of continuous current in the foreseeable future, NACS technology appears to have further potential in this regard for some years.


CCS Phoenix Contact charging socket

When Tesla entered the market with the Model S in 2012, however, there was neither sufficient infrastructure nor standards that would have enabled similarly powerful charging systems. Tesla therefore designed its proprietary charging plug and has continued to develop it ever since without being bound by any standards.

“In pursuit of our mission to accelerate the world’s transition to sustainable energy, today we open our EV plug design to the world. We invite charging station operators and vehicle manufacturers to integrate the Tesla charging plug and socket, now referred to as the North American charging standard (NACS), in their devices and vehicles,” Tesla writes on its company website. “NACS is the most widely used charging standard in North America: NACS vehicles outnumber CCS vehicles by more than two times, and Tesla’s supercharger network has 60 percent more NACS charging stations than all CCS-equipped networks combined.”

As Tesla continues to write there, there are already charging network operators who want to integrate NACS into their charging stations. If no other car manufacturer integrates the NACS connector into its vehicles, this will only benefit Tesla drivers in the short term – they will then no longer need an adapter for CCS1. “Similarly, we look forward to future electric vehicles adopting the NACS design and charging on Tesla’s North American Supercharge and Destination Charging networks,” Tesla said. However, specific models are not announced.
tesla.com, teslamag.de, insideevs.de, electrek.co

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