2011 All reactors in cold shutdown

2012 Start making full-scale measures against contaminated water

2013 Struggled in efforts to deal with issues

2014 Completion of fuel removal from Unit 4 spent fuel pool

2015 Completion of contaminated water treatment

2016 Start of full-scale investigation for fuel debris removal

2017 Fuel debris removal methods for each Unit determined

2018 Prepare for fuel removal from Units 3 spent fuel pool

2019 The method employed to retrieve fuel debris

for the first unit will be confirmed