Yes in high winds -- it also looks like it needs planning to me and a structural engineer and building regs...

I was asked to calculate the windloading on a ground mount system. It was up near Tintagel, so pretty windy. But when I looked into it was not that high a load because the system was South facing and the week winds were from the North.
There is a system on one of the council buildings down here that just sits on the roof. It relies on the wind to pin it down. And we have 100 MPH winds every year. 60 to 80 MPH ones are pretty common.

Though that system does look a bit dicey.

The only high risk direction was from the North and North East in that installation.
The very strong winds here are the Westerlies.

Yes! cos you can always get a gust from any direction. Surprising how the wind can lift stuff. Neighbour's wooden stable block blew across the road - the whole thing, another neighbour's stable went upside down and is now tethered to a tractor and another mobile field shelter is on it's roof 100 yards from it's original position. All these where considered in sheltered positions!

I think the irony is that the panels are at risk due to the shape of the adjacent roofs. Most "wind" damage is actually caused by the low pressure when the wind blows over a ridge. Most structures are self supporting and rely on gravity to hold them down (at least partially), once there is a suction force from the top, the weight is removed so the thing rattles about until the wind gets under the front edge and away it goes. The original Emley Moor tubular TV mast fell down due to the low pressure behind it swinging from side to side and exciting a horizontal motion in the mast. I have seen TV news shots of wind damage where the outer skin of a cavity wall has been sucked out and not pushed in to close the cavity!
Frank