Wall Street Journal report – Tepco also said Sunday afternoon that it restored power supply to the No. 2 reactor. Power restoration to reactors No. 1 and No. 2 had been expected by Sunday afternoon, after being pushed back from Saturday afternoon. The delay was due to workers having to shield many pieces of equipment from the water spraying operations.
Earlier, there were signs that the battle may have turned a corner, with cooling functions at two reactors apparently working again, a development that could ease a nuclear emergency that has gripped the nation for more than a week after a magnitude-9.0 earthquake and tsunami struck March 11.
That would mean that power would be restored to all six of the reactors at that point. (unit 5,6 were first and now units 1 and 2 and in a few days 3 and 4.