Photo/Illutration Children marvel at the pinkish color of LED bulbs powered by biodiesel fuel along the Megurogawa river in Tokyo on Nov. 10. (Tsuin Cho)

Tokyo’s Shinagawa Ward got a head start on festive lighting with an eco-friendly illumination show that will continue until Jan. 8.

Organizers said that around 380,000 LED bulbs were lit up Nov. 10. The electricity used for the event was generated with biodiesel fuel made from waste oil.

The light show can be seen along the banks of the Megurogawa river as well as a riverside park in Gotanda.

The event, which is free and has been held since 2010, was organized by a committee made up of local businesses and the Shinagawa Ward government.

Used cooking oil contributed by restaurants and households is recycled into biodiesel fuel.

“At a time when power supplies are a topic of interest, we want to spread the importance of having local communities generate and consume their own energy through cooperation with the public, the community, businesses and the local government,” said committee member Mayumi Shigeta, 29.

Children who attended the first day of the illumination expressed delight at the pinkish color of the LED bulbs that reminded them of cherry blossoms.

The bulbs are illuminated between 5 p.m. and 10 p.m.