I cleaned the solar panels from 2-3pm yesterday from a year’s worth of dust and saw real-time benefits.

The bottom chart shows total production for Saturday and Sunday. The curves are identical through 2pm, and then on Sunday, they jump 0.5 kilowatt after the cleaning.

10 responses to “Solar Cell Cleaning”

  1. Wow… what a difference. And they said you didn’t do windows…

    Now off to Mars with you to follow the rovers.

  2. So, how often should you clean your cells? What’s the integrated difference over the course of a month? How much efficiency is lost by a month of dust?

    It would be neat if you could track half the solar cell performance, so you could have an experimental and control.

  3. Neat…important lesson…

  4. now i want to move out there and start a solar cell cleaning-maintenance business…..sigh

  5. Todd- I am learning. I do have two panels with separate data feeds so i could do an A:B comparison over a few days (to control for weather variations, mild as they are) and extrapolate from there, but I’d want to keep both clean for the long term.

    Rocketeer: I don’t do Windows. Never will. Go Mac!

  6. I’m impressed at how well they were performing with a year’s worth of build-up on them.

  7. Well, the power of a little dusting…

  8. Really wonderful illustration steve…
    Thanks for making this a CC

  9. How did you clean the solar cells? Mine have a chimney to the side of them on which is mounted an aerial. Unfortunatley birds treat this as a resting spot and do what birds do over one of my panels. I am concerned that as I have a string inverter that I am not getting the full output on sunny days like today.

Leave a Reply

Your email address will not be published. Required fields are marked *