 On August 11, 2015, the Sendai Nuclear Power Plant was brought back online, followed by two units (3 and 4) of the Takahama Nuclear Power Plant on January 29, 2016.However, Unit 4 was shut down three days after restart due to an internal failure and Unit 3 in March 2016 after district court in Shiga prefecture issued an injunction to halt operation of Takahama Nuclear Power Plant.Though 43 of Japan's pre-2011 total of 54 plants remain idled, the Ministry of Economy, Trade and Industry said in 2017 that if the country is to meet its obligations under the Paris climate accord, then nuclear energy needs to make up between 20-22% of the nation's portfolio mix.