This week two different companies introduced two different uses of solar power on bike paths in the Netherlands: one for harvesting energy, one using tiny, twinkling, solar-powered stones to light up the path at night (inspired by Starry Night, as the bike path runs through the city where Van Gogh used to live). As somebody who used to bike out to the bars on a bike path with NO LIGHTS at all, I can’t even tell you how many wrecks this would have prevented.
Get on it, USA.
Rambulatory Ambulatory 
“As somebody who used to bike out to the bars on a bike path with NO LIGHTS at all”
um, how about you get some lights for your bike: http://goo.gl/B6t6Me