NIO’s battery swap stations have been part of a virtual power plant pilot program in Denmark. The recharging equipment for electric vehicle batteries, combined with energy storage systems, recently started discharging from batteries and delivering grid services during peak demand hours. Shen Fei, a senior vice president at NIO, revealed this information on Sunday on the Chinese Twitter-like platform Weibo. Such moves could ensure a stable power grid by balancing load peaks, and each swap facility could generate revenues measured in “dozen of thousands of euros,” Shen added, potentially offloading these capital-intensive assets. The Chinese EV maker operates 39 swap stations in five European countries, including Denmark, Norway, and Germany as of Feb. 22. It plans to expand its network of swapping facilities in China by adding at least 1,000 this year, up from 2,316 as of Dec. 31. [TechNode reporting, Shen Fei Weibo post, in Chinese]