Dirty Electricity Archive

In the last month, I have been contacted by two women driven out of their homes by illness caused by neighborhood installation of water pumps with  variable frequency drives (VFD) or  variable speed drives (VSD) or controllers. These are solid state devices which replace mechanical motor switches to controlmotor speed and torque by varying motor input frequency and voltage.  One was a solar powered water pump using a maximum power point tracking (MPPT) controller to maximize charging of batteries which powered a water pump motor. The other was a VFD on a replacement deep well pump motor. When this pump was running, dirty electricity levels in the house spiked as [&hellip

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