Previously, silphium was used in its entirety to generate energy. Now, by focusing on cascading use, we also enable the fibers to be used as a raw material. Prior to bioenergy production, the fibers are separated using a biothermal procedure and are processed into a new, locally grown and sustainable raw material. And with zero chemicals. Just a small amount of water and energy are used. The remaining parts of the plant are fed into the biogas plant as a fermentation substrate.