An explosion has occurred at a thermal power plant in Japan, Japanese media reported on Wednesday, citing the fire brigade. The reports said that a fire broke out on the 12th floor of a boiler plant at the Taketoyo power plant in the city of the same name in Aichi district. The fire spread to a conveyor belt around 20 metres above the ground, but was extinguished after three and a half hours, the reports said. There were no injuries. The cause of the explosion is still being investigated. The power supply in the region was not affected. The power plant operated by JERA is fuelled by coal and w…