CCTV News: Recently, the IEC (International Electrotechnical Commission) international standard ”Distributed Photovoltaic Access to Low Voltage DC Systems and Use Cases” (IEC TR 63534 ED1:2025), led by China, was officially released. This standard is the first international standard in the field of photovoltaic DC, led by Shanghai Jiao Tong University, Huaneng Jiangsu Company, Huaneng Jiangsu Comprehensive Energy Company, and a working group composed of experts from 14 countries including Germany and the United States. After 4 years of collaborative cooperation, they jointly completed the preparation.
Against the backdrop of global energy structure transformation, photovoltaic power generation, with its significant advantages and broad application prospects, is gradually becoming one of the important driving forces for promoting global green development. In 2024, photovoltaic power generation will reach 10% of global electricity consumption for the first time. In recent years, China’s distributed photovoltaic industry has shown a vigorous development trend and has become an important force in assisting China’s energy transformation and promoting the achievement of the ”dual carbon” goal. As distributed photovoltaic power generation enters the stage of fair market development, its global explosive growth urgently requires scientific and unified international technical standards.
This international standard focuses on typical scenarios and key technologies of distributed photovoltaic access to low-voltage DC systems, systematically reviews relevant typical engineering cases worldwide, summarizes the technical evolution rules of photovoltaic DC interface equipment, clarifies the technical indicators requirements of low-voltage DC systems in system control, fault response, and stable operation, and lays the foundation for the development of distributed photovoltaics and the construction of new distribution systems, providing guidance for the development of the global distributed photovoltaic industry.
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Post time: Jul-29-2025