Forum Discussion

rbpru's avatar
rbpru
Explorer II
Apr 21, 2021

Some questions on using solar.

Most of the time we camp with electricity. But a few times a year we go to music festivals or other events that are non-electric, plus and occasional boondock trip.

I am not a fan of generators but the only other option seems to be solar. However, when parked with no shade, the summer sun turns my TT into an easy-bake oven. In the deep shade, fans do a passable job of keeping things cool.

I find solar to be quite a quandary. Solar needs sun, but the typical TT mounted panels are not large enough to power the AC. When parked in the shade the amount of solar energy is reduced, plus the roof mounted panels are not at their optimum sun angle.

I have read a few comments about off-roof panels mounted so they can be moved into the sun and set at a better sun angle. Also, comments on lithium battery packs for more energy storage. Neither seem practical of cost effective, except in a semi-permanent long term installation.

My question is how many people find solar practical for short term vacation travel?

13 Replies

  • Solar works fine for me. While I carry a small (900/700 watt) generator to top off the batteries, I have never needed it in the last 11 years.

    I have a pair off 160 watt panels on the roof & carry a 160 watt portable panel. Have gone as long as 91 days in a row without hookups. I generally spend the winter in Arizona's Long Time Visitor Areas dry camping. While no shade on the rooftop panels, during summers I often camp under trees & use the portable panel for most of the charging.

    For most of the time I relied on a pair of 6V, 232 amp hour batteries, however two years ago I switched to a pair of 100 amp hour Battleborn lithium batteries. This year I added a third lithium battery. I typically use 50 - 60 amp hours per day.
  • B-n-B's avatar
    B-n-B
    Explorer III
    We boondock about 99% of the time. Whether short or long trips we tend to stay in forest service, BLM or state parks with little to no amenities. Because of this, solar is our go to source for power in our rig. In those instances where A/C is required I run the Honda 2200 as needed. I’m on my third solar install and chose a lithium battery this time for its deeper reserve and zero service requirements. With its longer life expectancy the initial higher cost should level out over time. We’ll see how it goes.

    Here’s an excellent site to get smart on solar with in-depth assessments on practical RV installs, products and appropriate sizing for just about any need.

    https://www.mobile-solarpower.com/
  • Solar works fine...if you don't need air/con. So if you camp in the mountains or spring/fall where it's cool, it makes a lot of sense (assuming you can stay out of the shade).

    Once you need/want air/con, it's technically possible buy highly impractical.

    No secret sauce.