Absurdly wasteful.
It almost definitely connects to the power grid and is just a clever place to put them.
If I’m honest if it’s only illumination, that doesn’t seem like the most efficient use of resources and energy (to build and eventually dispose of these electronics) in a populated area that’s likely to have adequate street lighting.
that said it looks like a pretty neat waste separation design
There is a possibility this panel feeds into a larger solar collection system, and is a clever use of a distributed solar surface.
Or that there is an electric compactor in there
We have those in US cities one company that makes them is BigBelly.
Most of the solar powered electronics are for compacting trash, and then alerting the collectors when they are full. I’ve never seen a lit bin, but it’s a nice touch.
