 Construction at Vogtle has suffered numerous delays and Unit 3 is now expected to be completed in 2021.Cost overruns at Vogtle and the cancellation of Summer led to Westinghouse's bankruptcy in 2017.The first AP1000 began operations in China at Sanmen, where Unit 1 became the first AP1000 to achieve criticality in June 2018. and was connected to the grid the next month.