This Sustainable City Lights concept is the latest in eco-friendly lighting. Each lamp post uses solar and wind energy for itself, and will use LEDs only when people are in it’s presence. When people are not nearby, it conserves energy by emitting only a soft glow.

The Sustainable City Lights open and close like a flower bud to harvest energy. Any surplus energy is returned to the main grid to use for other things. This is a not only practical, but pretty stylish as well.

City streets could do with a makeover where lighting and trash are concerned. Designer Haneum Lee thinks he has the solution to both. This concept could keep streets lit while keeping them relatively trash free. The base of the street lights are trash baskets that turn what they can into compost, using methane to generate the power needed to keep the lights going.

It could definitely work, especially in large cities, since there is no shortage of trash. We love to see concepts that kill two birds with one stone or two problems with a single idea.