3 ms·

Here's an article that has more details and a video. https://www.globalcitizen.org/en/content/homemade-wind-power-from-buckets-vietnam-red-river/ https://www.gl

• donquichotte 8y ago
  So they are using the motors from the printers as generators. You still need to rectify the voltage to store the energy in lead acid batteries, losing precious voltage in the diodes. I wonder how they get the >13V to charge the batteries. Power output is probably <10W average.
  • Scoundreller 8y ago
    Maybe harvesting diodes and capacitors from the same e-waste. Are the motors AC or DC? Even if DC, you’ll need diodes to avoid turning the generator into a motor. Since they were only talking about a few hours of light at an “equivalent” of 45 watts, sounds like a 5 watt LED. If they keep it really simple, they just charge at a really low rate as long as there’s some wind and throw away the rest of the power.
    • tastroder 8y ago
      On the: >Are the motors AC or DC? part, I believe all printers I've taken apart in the last decade used DC motors of some sort (with the odd stepper thrown in).