North American Charging System

Several electric vehicle charging network operators and equipment manufacturers have also announced plans to add NACS connectors.

[5] While most of Tesla's North American V3 Supercharger locations currently provide exclusively NACS connectors — only 10 locations supported the CCS+NACS Magic Dock as of June 2023, increasing to 42 near the end of the year[6] — it is expected that Tesla will outfit many North American Supercharger stations with both connector standards after 2023 as a temporary solution, in part to gain access to several billion dollars of infrastructure build-out subsidies available from the US Federal government for charging stations that include the CCS1 connectors during the mid-2020s.

[8] As part of the Bipartisan Infrastructure Law passed in 2021, the US Government announced it would offer US$7.5 billion in federal subsidies to build out a nationwide network of fast chargers at least every 50 miles along America’s major roads.

[9] The adoption by almost all other EV manufacturers in North America is considered acknowledgement that Tesla's Superchargers were the most reliable and most widely-available, and that the design of the connector was superior.

[23] The recommended practice, which changed the acronym to mean "North American Charging System", was published by SAE on September 30, 2024.

As a result, the Federal Highway Administration will develop detailed regulations on how the new SAE-standard NACS plug fits into the $7.5 billion charging network infrastructure buildout subsidies program.

[1] The current version 3 Tesla Supercharger can deliver up to 250 kW of power, but this is not the maximum the NACS connector is capable of.

[2][26] However, in a common configuration, NACS provides up to 48 amperes of current at 240 volts (the typical residential voltage of the North American split-phase electric power system), i.e. 11.5 kW.

When the connector is not locked in place, the signal commands the nearby vehicle to open the door covering the inlet.

Between June 2023 and February 2024, several other automakers and automotive groups announced that they would also equip their EVs sold in the North American market with NACS charge ports starting in 2025.

These included the ONroute rest stop network in Ontario, Canada, where a Tesla adaptor was permanently attached to a CHAdeMO cord,[55] and REVEL opened a charging station in Brooklyn, New York for a while after they were denied a license to operate a Tesla ride-hailing fleet in New York City.

[60] In June 2023 several other EV charging station providers also announced plans to add NACS connector support to their chargers.

[60] EV fast-charger company FreeWire Technologies also announced plans to equip its battery-integrated Boost Chargers with NACS plugs by mid-2024.

[61][63] In September 2023, hotel chain Hilton Worldwide announced an agreement with Tesla to install chargers with 20,000 NACS connectors across 2,000 of its properties in North America by 2025.

[8] However, other BEV competitors in the USA were previously unable to take advantage of the Supercharger network before the release of "Magic Dock."