Solar Power: Traffic Lights
'Green' traffic lights are not a new idea. The move to LED traffic lights is already offering significant savings on both energy consumption and costs. Berlin already derives 100% of their electricity for traffic control from renewable sources. India has combined both these attributes into a single traffic system. South African's first solar powered traffic light intersection was unveiled a few years ago. The main benefit being that traffic flows will be free of disruption when inevitable power failures occur.
Some solar-powered traffic signals have been previously provided by private investors. Sometimes costs were defrayed by allowing limited advertising on the lights. Certainly one way of getting motorists attention, but not likely to improve road safety. But the extensive use of renewable sources to power traffic lights is still very limited.

