➀ Simeon Ulm, a student at Hochschule Coburg, has built a supercapacitor using concrete for his master's thesis in Civil Engineering, collaborating with the Massachusetts Institute of Technology (MIT). ➁ Professor Dr. Markus Weber, who supervised Ulm's thesis, envisions using concrete not only for static reasons but also as a massive energy storage solution. ➂ The Coburg supercapacitor, known as EC3, has successfully powered a small red light, demonstrating its functionality. MIT is working on larger prototypes, and Professor Weber aims to expand research with Coburg University and MIT to advance the energy transition.