New National Standard Countdown: Cjnoo Sustainable Energy’s Grade 1 Energy-Efficient Chargers Ready for Launch

Cjnoo Sustainable Energy | April 2, 2026 | Guangdong
 
On November 1, 2026, the new national standard GB 46519-2025 Minimum Energy Efficiency Values and Energy Efficiency Grades for Electric Vehicle Supply Equipment will officially take effect. All newly manufactured DC chargers must meet the mandatory energy efficiency requirements, making energy performance a market entry threshold. Ahead of this upgrade, Cjnoo Sustainable Energy has already launched products that achieve Grade 1 energy efficiency.

Why Grade 1 Efficiency Is the New Industry Benchmark

This is the first national standard defining formal energy efficiency grades for charging infrastructure. The thresholds are:
  • Grade 1: 96.5% overall weighted efficiency
  • Grade 2: 95.5%
  • Grade 3: 94.5%
Unlike traditional ratings based only on “peak efficiency” under ideal conditions, the new standard evaluates weighted average efficiency across 9 operating points: 400V, 600V, 800V voltage platforms at 20%, 50%, and 100% load. This closely mirrors real-world charging station operations. Grade 1 certification means the charger delivers industry-leading performance under all typical operating conditions, for both passenger and commercial vehicles.

Efficiency Breakthrough: From Power Modules to Full System

Achieving Grade 1 efficiency requires core technological innovation. Cjnoo Sustainable Energy has invested heavily in high-efficiency power module R&D, optimizing topologies and system integration to deliver a significant leap in overall performance.
A prime example is the Cjnoo Starway Series 120kW Integrated DC Charger (Starway 120-2). Equipped with next‑generation 60kW high‑power modules boasting 97.2% peak efficiency, and enhanced by precision power allocation algorithms and advanced thermal management, the unit achieves ≥96.5% weighted average efficiency—meeting national Grade 1 energy efficiency standards.
Key design features that maintain high efficiency in real‑world operation:
  1. Full Potting Process: Critical components are fully potted for dust and salt‑fog resistance, ideal for mines, ports, construction sites and other harsh environments.
  2. High‑Efficiency Cooling: Independent dual‑air‑duct cooling system ensures stable 24/7 high‑power output.

The Business Case for Higher Efficiency

For charging station operators, efficiency directly translates to profitability. Grade 1 chargers mean lower energy loss, more stable operation, and superior return on investment over the product lifecycle. A 2% efficiency gap between Grade 1 and Grade 3 can yield substantial savings over time.
Example: A small station with 2,000,000 kWh annual charging volume using the Starway 120-2 instead of a typical Grade 3 120kW dual‑gun DC charger can save an estimated 40,000 kWh in energy loss per year.
Additionally, lower system heat output reduces cooling load, extending equipment life and lowering maintenance frequency and costs.
As demand for high‑power charging—especially for new‑energy heavy‑duty trucks—continues to surge, charging networks require higher‑performance equipment. High‑power, high‑efficiency chargers are becoming the foundation for next‑generation charging infrastructure.
The Cjnoo Starway Series 120kW Integrated Dual‑Gun DC Charger delivers proven Grade 1 efficiency, offering investors a competitive product choice. Going forward, Cjnoo Sustainable Energy will continue driving innovation to deliver faster, more efficient charging solutions worldwide.
Cjnoo Sustainable Energy