Japan's latest energy road map sees nuclear power accounting for up to 22 per cent of its energy mix by 2030, compared with more than a quarter before Fukushima and almost nothing now. The Otsu District Court earlier this year made a surprise decision that restricted Kansai Electric Power Co from operating two reactors in western Japan only weeks after they'd been turned back on. The Otsu ruling was the first time that a local court forced the shutdown of an operating nuclear plant in Japan and came after a separate jurisdiction lifted an eight-month injunction preventing operations in December. "There is no shortage of activist groups willing to file suits against nuclear restarts, and apparently no shortage of judges willing to hear the cases," said Tobias Harris, a Japan analyst with Teneo Intelligence in Washington DC. "With a court having already successfully blocked a restart, anti-nuclear groups have every incentive to file suits against other restarts in the hope of finding a sympathetic judge."