>>100060
> every step you take generates a small amount of energy. Millions of steps together can power LED lights
Oh god I'd assumed these never left the prototype stage. Humans are pretty inefficient at generating electricity using their bodies. See https://www.youtube.com/watch?v=S4O5voOCqAQ
>Piezoelectric tiles: Specially designed tiles can produce around 249.6 milliwatts per step.
This is horrible. 4 steps a second for a single watt. A few dozen people walking at a brisk pace will be enough to keep a single lightbulb on. It does add up but so do the maintenance cost, considering these tiles are moving parts that get trod on constantly, the surface does get wet often and there is electricity involved.