But may I ask , say you have a large area of say 6x6 panels, can you walk on them? Do you have to use scaffold boards to walk on
I wouldn't walk on solar panels. I doubt they are that tough to handle that kind of force. Granted, they
are rated for hail stone impacts
Maybe if wearing big soled boots/shoes to help distribute weight.
Even handling that on a slightly windy day is hazardous?
I wouldn't even attempt it during windy days, tbh. I've worked with sheets of plywood, 4x8 (1.2m x 2.4m), and the wind wants to take off with those. Not a fun experience. I could just imagine what that'd be like surrounded with stuff that mounted off the roof even an inch. So easy to trip and go tumbling.
Do the panels have an easy half twist clamp system
Panels that are properly installed have clips with screw that go down into the railing below. A single clip holds on to 2 panels usually, something like this:
Then you just loose the screw and you can slide the panel out. Of if that doesn't work, remove the clip completely and pick the panel up, after disconnecting the MC4 (or whatever connector) first, of course.
Start from the bottom and remove a panel and work your way up (like roof tiles).
If the panels are installed with spaces between rows, you can just go to any row and work on any panel. They aren't installed in a tiled fashion, otherwise the lapping panel would cause a shadow on the lapped panel, or create a spot for water to pool up during heavy rains.
do you have to use suction clamps
This might actually make removing a little easier, depending on how they are mounted. Of the various installations/removals I've seen, never seen on of these used, though, as the frame is easy to grab on to. Remember the panels edging is there for adding strength to the panel. So there's a lot of "lip" to get a firm hold of.
If the panels are quality then they will be covered with glass (not plastic sheet). Thats heavy and fragile so a 2 man job?
All panels that I'm aware of use glass, not plastic/plexiglass. This is because it's in direct sunlight and more importantly, direct UV exposure. Plastic and Plexiglass (aka Lexan) will crack over time, turn yellow, and even warp due to the enormous amount of constant heat applied to it.
Panels usually only weigh about 20lbs, I think. I was able to easily pick up the few I have with almost zero effort, other than just being awkward. Weight isn't really an issue.
The glass used is tempered. Similar to windshield glass, or shower door glass. I'm not sure of grade of glass, though. It would be interesting if the glass used is from those who make Gorilla Glass, ya know, for cell phones and such.
Get any problem with a roof leaking its all got to come up? Especially round the stanchions.
Yup, and that's one major reason why I
won't be installing panels on my roof. I don't like the idea of this being the case. And if the panels are installed mid-way between the shingles life span are, you'd be wasting money in the long run because you need to have the panels removed first, which can be almost as much as the initial installation, and some times more, depending on angles and how many runs you have, and then re-installed after the roof work is done.
Best is to have the roof re-done then have the panels installed. That way you get a fresh 25 year life span on both the panels and roof. But realistically, with panels covering the roof, it would most likely extend the life of the shingles drastically. At least the portion that's covered.
Metal roofs I don't know a whole lot about, but I imagine they last a lot longer anyways.
You might expect these panels to interlock like roof tiles so rain can only flow downwards (but the wind could blow it slant wise?)
Are these panels hurricane resistant?
Most panels (like 99%) do not interlock this way. However, there is one company, yeah only ONE! That one is Tesla. They are the only ones with Solar Tiles, and they will interlock and overlap like shingles do.
The panels themselves are pretty resilient. The major issue is the mounting hardware. If it's not installed properly, the high winds could rip them right off the roof, damaging the roof and allowing the wind that would otherwise be meh to it, tear it shreds. Compromised integrity. Another reason I don't plan on installing on the roof.
This mounting requires multiple anchoring points of the rails to the roof. When this is done the shingles are lifted up and the bracket is attached directly where the truss is located, so that it goes into thick structural wood (thick compared to the sheeting of the roof itself). Considering that trusses are usually 16" apart (at least in the US), it's pretty easy to figure out where they are. Plus they usually stick out where the eaves are and are visible.
Most water just flows off the ends of the panels onto the roof and goes on it's merry way like normal.
The more I think about it, seems kinda Mickey Mouse to me? But it must kinda work?
lol Yeah, it can seem that way. But that's why there are loads of regulations of how it's
supposed to be installed. Not that every installer follows these or not, tho
I thought of something insidious. Run small bare wires along the surface of the panels, and then say the odd wires are connected to ground, and the even wires are connected to an electric fence unit. Those birds land and make contact across both wires 
