VOGTLE TIMELINE

1970: Georgia Power’s board of directors votes to build a four-unit nuclear power facility.

1989: Vogtle units 1 and 2 are online at a cost of $9.2 billion, far more than originally projected.

2006: Georgia Power seeks permission from the PSC to bill customers for planning and licensing costs for Vogtle 3 and 4.

2009: PSC approves Georgia Power’s request to begin construction on reactors 3 and 4. Lawmakers allow Georgia Power to pass on financing costs to customers before the project is completed. The project is to be finished in 2017.

2015: Georgia Power and plant construction contractors sue each other over delays that add more than $3 billion to project and three years to the completion date. December 2016: In a settlement with regulators, Georgia Power agrees to controls on the project’s costs and to penalties if the project isn’t completed by the end of 2020. February 2017: Toshiba — the parent company for Westinghouse, which is the project manager for Vogtle — reveals a $6 billion loss on its U.S. nuclear projects, including Vogtle.

March 2017: Westinghouse files for Chapter 11 bankruptcy protection.

June 2017: Following Westinghouse’s exit, Southern Nuclear takes over as lead project manager.

July 2017: Plug is pulled on a South Carolina nuclear project that is Vogtle’s near-twin.

August 2017: Southern Company discloses project delays and costs up to more than $25 billion. December 2017: Analysts appointed by the Georgia Public Service Commission conclude Georgia Power failed to manage the project in a “reasonable manner.” December 2017: PSC approves Georgia Power request to keep Vogtle nuclear construction going. Approves higher costs. August 2018: Georgia Power announces Vogtle’s cost to complete project had increased by more than $2 billion. Southern Company to cover at least $700 million of Georgia Power’s portion of $1.1 billion.

September 2018: Vogtle co-owners to vote on whether to stay in the ownership partnership.