The invention relates to a plasma generation device comprising a plurality of plasma modules for generating a plasma. Each plasma module has a module housing with at least one gas inlet for supplying a process gas. Furthermore, a discharge device for generating the plasma from the process gas and a plasma outlet are provided. The plasma generation device has at least two plasma modules for generating a plasma. Each plasma module has at least one gas outlet for some of the process gas, wherein the at least one gas outlet of at least one plasma module issues into a respective gas inlet of another plasma module.