Driven by China’s dual‑carbon initiative, the new‑energy‑vehicle charging industry has entered a new era defined by standardization and high energy efficiency. GB 46519‑2025, China’s mandatory national energy‑efficiency standard for EV charging equipment, has been formally released and will come into full force in November 2026. Starting August 1, mandatory 3C certification for DC chargers will take effect. Any unit without valid 3C certification or failing to meet the minimum Tier‑3 energy‑efficiency requirements will be banned from production, sale, grid connection and public bidding.
3C safety certification combined with Tier‑1 energy efficiency has therefore become a non‑negotiable prerequisite for charging station construction, bidding participation and compliant commercial operation.
In‑Depth Analysis
01 What Is Tier‑1 Energy Efficiency for EV Chargers?
Under national mandatory standard GB 46519‑2025 Electric Vehicle Supply Equipment — Limiting Values of Energy Efficiency and Energy Efficiency Grades, Tier‑1 represents the highest energy‑efficiency rating for charging equipment. It marks top‑tier technical performance and serves as an industry benchmark for green development.
Unlike peak‑efficiency figures that only reflect performance at a single operating point, Tier‑1 applies a 9‑point weighted‑efficiency assessment framework. It covers the full 400 V, 600 V and 800 V voltage ranges, as well as 20 %, 50 % and 100 % load conditions. This evaluation method accurately mirrors real‑world daily operating energy consumption and rules out misleading single‑point efficiency claims.
Clear industry technical thresholds must be met to achieve Tier‑1 status: overall weighted efficiency of the complete charger shall reach ≥96.5 %, while the core charging module must deliver weighted efficiency above 97 %. This margin offsets roughly 0.5 % cumulative losses generated by cables, thermal management and auxiliary power supplies, ensuring consistent, long‑term high‑efficiency operation. Tier‑1‑compliant DC chargers deliver four key benefits: lower conversion losses, reduced standby power draw, less heat generation and extended service life. For charging‑station operators, these translate directly into core business value: energy savings, lower operating costs, higher revenue and improved equipment durability.
02 Tier‑1 Mandatory Requirements & Scope of Regulated Equipment
1. National Mandatory Energy‑Efficiency Rules
2. Equipment Subject to the New Regulation
This new national standard applies across the full 40 kW‑1200 kW power spectrum to core hardware, including integrated DC chargers, split‑type DC chargers, split power cabinets and charging terminals.
The rules cover charging deployments of all kinds: residential communities, commercial zones, highway service plazas, logistics parks, heavy‑truck depots and rural public charging sites. Both newly installed and existing DC charging hardware must satisfy these energy‑efficiency access criteria. Non‑compliant products will be phased out once the policy transition window closes. Deploying Tier‑1‑rated equipment ahead of enforcement deadlines has become a critical strategic move for station operators.
03 Cutting‑Edge Technology Powers FFTECH’s Push for Tier‑1 Certification
Capitalizing on the roll‑out of this new national standard, FFTECH is moving full‑speed ahead to secure Tier‑1 energy‑efficiency certification.
FFTECH rigorously aligns product design with every parameter laid out in GB 46519‑2025, carrying out comprehensive hardware upgrades and performance calibration. Improvements span core charging‑module topologies, third‑generation SiC (silicon‑carbide) power semiconductors, magnetically‑integrated optimized hardware design and intelligent dynamic control algorithms. Every safety and efficiency indicator is tightly controlled to comfortably clear the Tier‑1 performance bar.
Once FFTECH officially obtains Tier‑1 energy‑efficiency certification, its DC chargers will hold dual valid credentials: 3C certification plus Tier‑1 energy‑efficiency qualification.
✅ Worry‑free compliance: Satisfies project acceptance, government bidding and full‑site operational‑access requirements, eliminating risks of being phased out by policy updates.
✅ Comprehensive safety: Built upon rigorous 3C full‑scope safety testing standards, with multi‑layer protections for insulation, lightning immunity, over‑voltage and overload conditions for enhanced operational reliability.
✅ Industry‑leading energy savings: Powered by high‑efficiency modules achieving over 97 % conversion efficiency. Low power loss and minimal standby consumption generate meaningful annual electricity‑cost savings per unit.
✅ Enhanced service life: Reduced module heat output and operating load slow hardware degradation and substantially lengthen equipment service cycles.
✅ Broad deployment compatibility: A complete full‑power‑range product portfolio suitable for residential, commercial and heavy‑duty‑truck high‑power charging‑station roll‑outs.
Aligned with global green‑energy trends, FFTECH keeps technological innovation at its core. The company accelerates product readiness for dual‑qualification status (3C certification + Tier‑1 energy efficiency). Backed by robust product quality, FFTECH supports partners in capturing first‑mover market opportunities, driving cost reduction and operational efficiency gains, and sharing in the growth potential of the EV‑charging sector.
