Chapter 7 of report KD 579 has been reviewed. Originally only a PM-generator using a 4 kW housing was investigated in this chapter. This generator had a too high sticking torque to get an acceptable low starting wind speed. Now also a PM-generator using a 3 kW housing has been investigated and the sticking torque of this generator is low enough. A 4-pole PM-generator in combination with a gear box with a gear ratio of 12.4 is an alternative for a 50-pole direct drive PM-generator if the windmill is used to be connected to the asynchronous motor of a centrifugal pump.