Siemens Energy and TenneT have successfully installed the world's first supercapacitor-based grid-stabilization system in Mehrum, Germany. The SVC Plus FS system utilizes supercapacitors to provide instantaneous reserve and reactive power, eliminating the need for large fossil-fuel power plant generators. After over a decade of development and three years of construction, the system now operates fully automatically and remotely controlled. This groundbreaking project sets a new standard for the global energy transition, showcasing the potential of supercapacitors to revolutionize traditional grid-stabilizing functions.
https://www.pv-magazine.com/2025/12/15/germany-brings-worlds-first-supercapacitor-statcom-online/