The first new US nuclear reactor since 2016 has started commercial operation at the Vogtle power plant in Georgia. The reactor, Vogtle Unit 3, is a 1,114 megawatt Westinghouse AP1000 design and is expected to be followed by a similar Unit 4. The project was originally estimated to cost $14 billion but has ended up costing over $30 billion due to construction delays and cost overruns. The new reactors will make Vogtle the largest nuclear power plant in the US.