Excellent idea! The videos are a bit underwhelming - more context would be helpful. On the other hand, I really like that you're doing actual work in the field instead of making 3d animations. I really like also that this seems to be such a small scope. You are using existing solar panels and hardware, just the assembly is automated.
I guess the biggest questions are:
1. are telehandlers precise enough for final assembly on their own without humans? 2. if you need humans too, can they safely co-operate with the robots? 3. if you need humans too, how much will this save on workforce needs in the end?