New North American Charging Interface Standard Explained

4/18/2025

An innovation of Tesla's proprietary charging interface, the NACS charging protocol was originally created specifically for Tesla models and is perfectly compatible with AC charging and DC fast charging needs. With the company's announcement of open source technology and the opening of the supercharging network to third parties, the standard is accelerating to change the North American charging market landscape. Its unique interface design has been recognized and adapted by many mainstream car companies.

1.Comparison of Innovative Interface Designs

Compared with traditional composite charging systems (CCS), NACS EV chargers show significant technical advantages:

1.1 Integrated Construction: Single interface realizes full coverage of AC and DC, and the module volume is reduced to 50% of the CCS standard, with a weight reduction of 40%.

1.2 Intelligent Temperature Control System: Adopting millisecond-level temperature monitoring chip to ensure the stability of 500A high-current transmission.

1.3 Prospective Expansion Supporting future 1MW ultra-high-power charging architecture, reserving upgrade space for ultra-fast charging technology

2.Observations on the current status of market applications

Although NACS has a 67% market share in the number of charging piles in North America, recent industry data shows that its network opening progress is lagging behind expectations. This has led to the CCS standard remaining important in the next 5-8 years, especially in government infrastructure projects with a penetration rate of 82%. The European market continues to be dominated by the CCS2 standard, while China's charging network continues to use GB/T as its core architecture.

3.Enterprise Solution Highlights

In response to the technological changes in the industry, NexwayEV has taken the lead in launching a smart charging system that complies with the SAEJ3400 specification:

3.1 Dual-mode Power Supply Architecture: AC module supports 16-80A wide range adjustment, while the DC unit realizes 350A continuous output.

3.2 Military-grade Manufacturing Standards: Passed the IATF16949 system certification, and applies aerospace-grade ultrasonic welding process.

3.3 Dynamic heat dissipation program: the original liquid cooling circulation system makes the temperature rise control better than the industry standard by 30%

4.Industry Development Trend Research and Judgment

From the analysis of the technical evolution route, the North American market will show the transition stage of dual standards coexisting. The recent white paper on charging facilities released by European regulators shows that CCS2 is still listed as the core infrastructure standard until 2030. For charging equipment manufacturers, the development of modular and compatible platforms will be the key to winning the market competition.

5.Core Value of NexwayEV Technology Solutions

As an innovator in the field of smart charging equipment, NexwayEV always focuses on three core business segments:

5.1 EV Charger System Development: Covering the full range of charging piles with power bands from 7kW to 480kW, and the original dynamic energy distribution algorithm to improve the charging efficiency by 15%

5.2 Precision Manufacturing of Charging Connectors: UL, CE, TÜV triple certified NACS/CCS/GB/T series interfaces with military-grade IP67 protection standard

5.3 Development of Vehicle-Pile Collaboration Protocols: Supporting ISO 15118 Plug & Charge technology, realizing automatic identity authentication within 0.3 seconds.

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