A large number of screening systems are operated in an energy-inefficient manner. That was the result of a 2011 benchmark study, in which Voith analyzed different generations and process variants of fine screening systems. Thus 70 percent of all screening systems investigated showed considerable potential for optimization. The free-of-charge ScreenFitNavigator online benchmark test from Voith has recently offered all paper manufacturers the chance to check the energy efficiency of their fine screening (slot screening) in the stock preparation. Just a few weeks after the launch of the tool, many paper manufacturers from all over the world had performed the test and received a quick and nonbinding energy assessment of their fine screening system.As well as English and German, the Navigator is now also available in Chinese.