After 12 years of networking with free energy developers, Harald Kautz gathered the experience needed to be able to evaluate free energy technologies regarding their economic potential, technological feasablity and if wanted to deliver a scientific explaination for their function. In general, this scientific expertise should involve plasma and/or scalar physics.
Over the years he gathered practical experience with both Wilhelm Reich and Viktor Schauberger applications.
However, this all comes with an initial advice: free energie needs to be thought outside the economic box, because abundance and scarcity behave like matter and antimatter.