Solar Panel performance on Momentum 21G

[@TJ-ul9pk]

Nice video!

[@junkerzn7312]

A bit of dirt and dust won't hurt anything. But shade can throw a wrench in solar production, and being off-angle certainly reduces solar production. Some people build prop-ups for the panels while parked, but most just eat the reduced production because flat-mounting is really easy to do. Also, wiring dissimilar panels together can cause reduced production, depending on whether it is series or parallel and the specifications for each panel. When wiring in parallel the voltage specs for the panels have to be very close to one another, and when wiring in series the current specs have to be reasonably close to one another. The best overall solution is to get rid of the shade, meaning mounting the panels on stand-offs high enough such that no shade is thrown on them. And maybe make a little front-piece to reduce wind resistance while driving. If you can't get rid of the shading, then you do have the option to wire each panel into its own dedicated charge controller. This will be a bit more wiring and need three charge controllers but then the panels won't interfere with each other. -Matt

[@toyhaulen]

@junkerzn7312 Thanks for the info. The panels are very close in specs. I kept the original Jaboni panel and added two Renogy 175 watt panels. I suspect that Jaboni was using Renogy panels. Maybe someday if I upgrade the panels I will make them adjustable and raised higher. This is the 1st time I have really looked at the amps, watts, and volts on the app and researched results. Thanks!