Core Points - The IEC 62862-2-2 standard for molten salt as a heat transfer medium in solar thermal power plants was discussed at the sixth working group meeting held in Madrid, Spain [1] - The meeting was organized by Zhejiang Green Storage Technology Co., Ltd.'s subsidiary, Zhejiang Gaosheng Energy New Technology Research Co., Ltd., and included experts from multiple countries [1] - A total of 139 review comments were collected from countries including Belgium, Chile, and Germany, leading to a consensus that will advance the standard to the next phase [1] Industry Insights - The meeting was part of a series of joint meetings by the International Electrotechnical Commission (IEC/TC117), highlighting the global collaboration in standardizing solar thermal technologies [1] - The focus on molten salt as a key performance indicator for heat transfer and storage in solar thermal power plants indicates a significant step towards enhancing the standardization process in this sector [1] - The exchange of experiences among international peers is expected to contribute to the improvement of China's domestic solar thermal power standards and promote high-quality industry development [1]