An international standard proposal for virtual power plants, led by China, has recently been approved by the International Electrotechnical Commission (IEC). The standard, titled "Virtual Power Plants – Part 4: Functional Requirements and Specifications for Primary Frequency Regulation," focuses on the core capability of virtual power plants to rapidly stabilize the power grid. It will bring together experts from multiple countries to develop unified global technical guidelines, marking a significant step forward for China in the field of international standardization for virtual power plants. A virtual power plant is not a physical power plant. Rather, it relies on digital technology to aggregate distributed devices—such as rooftop photovoltaic systems, energy storage batteries, charging piles, and adjustable air conditioners—to achieve unified dispatch and coordinated operation. Although it has no factory buildings or generating units, it can still build considerable regulation capacity and provide ancillary services such as peak shaving and frequency regulation for the power grid.