An annual solar car race has begun in Suzuka City, Mie Prefecture, in western Japan.
The Dream Cup Solar Car Race was launched 18 years ago. The race is authorized by the Federation Internationale de l'Automobile, the governing body of world motor racing.
Solar cars are powered by solar energy that is converted into electric power by the cars' solar panels and stored in batteries. Some solar cars are said to reach a top speed of 150 kilometer per hour.
82 participants, including university students and others from Japan, Australia and the Netherlands, are taking part in the 2-day race.
On the first day the qualification races of 4 different categories and some final races were held on the same 6-kilometer circuit as the Formula One Grand Prix race.
The participants were competing against each other in scorching weather.
Four-hour and eight-hour endurance races will be held on Sunday.