Leading the Efficiency Revolution: INCREASE Spearheads the Drafting of China’s New National Standard GB 46519-2025 for EV Charging Energy Efficiency

Recently, the State Administration for Market Regulation (SAMR) officially approved the mandatory national standard GB 46519-2025: Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades for Electric Vehicle Supply Equipment. Set for implementation on November 1, 2026, this standard represents a landmark shift in the industry. As a pioneer in the EV charging sector, Shenzhen Increase Technology Co., Ltd. ("INCREASE") was invited to co-draft the standard, leveraging its extensive technical heritage and field experience. Mr. Liu Wenfeng, a lead technical expert at INCREASE, served as a primary drafter, contributing pivotal expertise to shape the future of industry standardization.

I. The Era of "Mandatory Efficiency": A Turning Point for the Charging Industry As China’s first mandatory national standard for charging pile energy efficiency, GB 46519-2025 marks a strategic pivot from "scale expansion" to "quality-driven upgrading." With China leading global EV production for a decade and boasting 12.818 million charging units, the sector faces a critical challenge: high energy loss. Excessive dissipation not only raises operational costs but also conflicts with sustainability goals.

The new standard applies to all configurations—including standalone and wall-mounted units—across public, commercial, and residential sectors. It introduces a three-tier grading system. For instance, Grade 1 efficiency for integrated DC chargers must reach at least 96.5%, while Grade 3 (the market entry threshold) is set at 94.5%, with standby power capped at 30W. For AC chargers, standby power is strictly limited to ≤7.0W. Notably, the standard introduces a "9-point weighted calculation method" to evaluate efficiency across full voltage and load ranges, replacing the outdated "peak efficiency" metric. Once implemented, it is estimated to save 1 billion kWh annually, shifting the industry focus from "price wars" to "performance excellence."

II. INCREASE’s Technical Leadership: Empowering National Standards The invitation to draft a mandatory national standard underscores INCREASE's technical dominance and industry influence. Since its inception, INCREASE has pioneered core technologies, including Silicon Carbide (SiC) integration, high-efficiency power module design, and full-load efficiency optimization. Its portfolio spans DC fast chargers and AC units utilized in public stations, OEM partnerships, and smart industrial parks.

Throughout the drafting process, Mr. Liu Wenfeng provided critical insights based on years of R&D and field data. His contributions focused on optimizing testing methodologies, differentiating metrics for diverse equipment types, and evaluating the feasibility of technical transitions. "GB 46519-2025 will catalyze a technical overhaul of the industry," noted Mr. Liu. "INCREASE anticipated this trend; our core charging modules already achieve stable conversion efficiencies exceeding 98%, surpassing Grade 1 requirements. This role is both an honor and a responsibility to provide consumers with more economical and sustainable charging solutions."