I'm based at a university where there are a couple of solar-tracking devices feeding fibre optic cables to a corridor in a nearby building. The light from the 1

I'm based at a university where there are a couple of solar-tracking devices feeding fibre optic cables to a corridor in a nearby building. The light from the 1 metre-wide trackers is laughable. You can see the light source but it's not strong enough to practically illuminate anything. Maybe this is an old installation and the technology has since improved, but my instinct is that solar panels powering batteries to light LEDs would be much more efficient.