Wow, have not heard this question in a few years. I tried to search for the original post regarding this. It is out there somewhere. I was asked if a member could hook his SOLAR up to a CG meter and his home. The answer was yes and no. Local governing rules (based on the national rules for SOLAR installations) will NOT go for it (at least mine will not). At the time I did some research on it.
The CG redid their electrical a few years ago and had the required new smart meters installed at the end of each run (each site has a regular meter). I know that the old meters (non smart) will not rotate in reverse, the newer electronic meters will produce a code and send to the meter reader if you are producing power. So you would actually be doubling your usage. The new smart meter handles this. Also, if you decided to just give it a try, the electric company has a way of knowing if the electrical on the line is being fed from an external source.
When I talked to the Electric company worker, he said with the new meter it will alert the electric company, they come out and look at what is being fed by the meter, isolate the external power source and pull the meter, and of course you will be charged for a disconnect/reconnect charge after the solar has been removed. Where we camp, he said all I have to do is go up on the hill and see who has solar on their roofs if we did not have a smart meter to look at.
Your TT would also need to meet ALL local and national codes for solar.
With that being said, the minimum for installing SOLAR here (Electric company requirement yours may be different) is 1200 watts. Roof mounted, is the easiest to get approved, and very affordable. So after you get the 1200 watts installed, you can pick up a micro-inverter for each of your TT's solar panels. Wire a switch that will allow you to select either SOLAR power to the TT or to the micro-inverter that will connect to the house SOLAR wiring.
That SOLAR panel on the TT needs to follow the code.
I would not recommend doing it as most people will not wire to code, and it can be a safety issue. Also, the amount of SOLAR panels on a TT will not be enough to have much of an impact on your electric bill. You also need to use residential higher voltage panels over the lower voltage RV panels.
GREAT thinking out of the box.
In the future as technology changes, more and more RV's get SOLAR, there may be an option down the road to just plugin your RV into the CG electrical and get a reduction in your bill from the CG for cutting their electrical bill a little. Now you add SOLAR to 100 RV's in the CG and that can make a good dent in the electric bill, or your overnight charge, but each site would need a Smart meter.
Yes, I was thinking of doing this back then also.
Don
My Registry
RVing with SOLAR