Wednesday's decision by an Otsu District Court judge to slap a provisional injunction on the restart of the No. 3 and 4 reactors at Kansai Electric Power Co.'s Takahama nuclear plant has sent a shock through the nuclear power industry.

Moreover, pro-nuclear politicians fear that the nation's push to restart as many reactors as possible as quickly as possible has come to a halt.

On the eve of the fifth anniversary of the 2011 disaster, which included the meltdown of three reactors at the Fukushima No. 1 plant and led to the nation suspending its use of nuclear power for an extended period, only two reactors, Kyushu Electric Power Co.'s Sendai No. 1 and 2 reactors, were generating electricity.