The research project Industry4Redispatch (I4RD) has reached a significant milestone with the successful execution of a large-scale demonstration. During this demonstration, redispatch activation was tested at four Austrian industrial sites. Participants in the test phase included major companies such as MONDI and voestalpine Stahl, as well as medium-sized enterprises like Wiesbauer Wien and a “Virtual Power Plant” (VPP) operated by Siemens and Energie Kompass, where multiple facilities were pooled to collectively provide flexibility.