A light rail system which runs on 100% renewable energy named the “Solar Light Rail” has been proposed by authors. Experiments using a prototype model have been carried out to demonstrate the availability of the rechargeable power supply method using supercapacitors. In the experiments using the updated equipment, the experimental condition is changed from the passed experiments, and the energy consumption per run is decreased. Low energy consumption causes running for a longer time after sunset. The handmade equipment is more efficient and makes the better result by the improvement.