This project is miakng good progress.At the moment a second turbine is nearly finished. The first one (visible in the movie) has a diameter of 3 meter. The second one is a 1.8 meter version. These people are learning to understand the concept behind it really good! They are not just copying it.Moreover, we do this work in temperatures reaching up to 40 degrees Celsius. When you leave your multimeter on the table, the display will turn black within one hour Best wishes, Roland