Let me add this: for some people, the crock pot method of solar (fix it and forget it) will be best. It's true you won't get as much efficiency and it will proud e poor results in shade, but there are folks who spend a lot of time away from the campsite, use very little power, and just need enough to keep the three way fridge running for a weekend or those who are OK parking in open sun. I met a couple last summer who had bought their T@b used and it already had the Unisolar panels installed. They absolutely loved their set-up. They spend their days in the back country and don't have to worrry about theft.
The other thing is that you could actually have both set-ups.
Interesting, I have had an EZ Pass transponder for four years in my Jeep but never did anything for my Tab400. I have towed her hundreds of miles through many toll roads and never once had a problem. My account has been charged accordingly but I never bothered to confirm how many axles were counted.
marleecamps I agree completely. Several different utility, travel, and boat trailers and never any problem. If you look at your statement there is a column for class code or something similar and in NYS it will be 2## or 3##. I have a commute between home and a cabin where the same trip is 50% more $ for the 3 code trips which are with trailers.
I have two passes. One for the truck and one I registered years ago as an RV EZpass for when pulling the camper. In New York there use to be a discount for RVs/campers if you used a separate pass registered as an RV. I don't know if it still applies. I'd have to check as it's been years.
I think part of the problem is that each ez pass agency per state may handle it differently. I’m in Massachusetts. This page explicitly says in state the readers will count axles, but they may not out of state.