 Six AP1000s are currently in operation or under construction.Four are located at two sites in China, two at Sanmen Nuclear Power Station and two at Haiyang Nuclear Power Plant.Two are under construction at the Vogtle Electric Generating Plant in the US, while a further two at the Virgil C. Summer Nuclear Generating Station were cancelled in 2017. , all four Chinese plants have completed construction and are at various stages of connecting to the grid.