Solar panels and snow

I can't see these photovoltaic solar panels working too well under their blanket of snow.

It looks like it's all about to slide off in one go, though.

On a boat I imagine it's rather easier to clear snow from solar panels. They are supposed to be more efficient the colder they are - I don't know whether that's solely because of the reduced resistance of the cabling, or something to do with how the semiconductor material performs.

Speaking of resistance ... I can't resist one more icicle photo.

The icicle furthest from the camera appears to be three feet long. And look at that tree with its snow blossom!