US power market conditions have seen 4 uprate projects cancelled and a reactor completion slowed to a crawl. This represents 1,587 MWe that now look unlikely to be on-line at the end of the decade.
Tennessee Valley Authority has announced a new arrangement for the completion of the Bellefonte-1 nuclear project (1,213 MW); the utility will cut the project's budget by US$116m to just US$60m/year and the commissioning will certainly be delayed after 2019. Moreover, Exelon has scrapped its capacity uprate projects for its LaSalle and Limerick nuclear power plants. Each plant has two reactors and the total of the uprates across all four would have been 370 MWe.
Moreover, South Carolina Electric & Gas (SCE&G) announced that startup of the US$6.3bn nuclear extension under construction at its V.C. Summer plant could be delayed by up to a year owing to delivery issues, from March 2017 to late 2018. SCE&G plans to build two new AP1000 reactors (1 GW each) in Fairfield, SC.
New-build projects in the US, however, stand to add about 4500 MWe from four new AP1000 units across the Vogtle and Summer sites. Half of these are already officially under construction, having poured first concrete.
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