Sizewell nuclear power plant

Sizewell nuclear power plant in context

By gross operating capacity Sizewell nuclear power plant is the 4th largest of 4 operating nuclear sites in the United Kingdom, holding 19% of the country's operating capacity, and ranks 129th of 172 worldwide.

Its operating unit started up in 1995; the unit is 31.0 years old, younger than the median of 37.0 in the United Kingdom.

The 3 units with both construction and grid dates on record took 4.8 to 6.6 years (median 5.0) from construction start to grid connection; the median across all reactors connected in the 1960s is 5.0 years.

The nearest other tracked nuclear sites are Gravelines nuclear power plant (138 km), Borssele nuclear power plant (168 km) and Doel nuclear power plant (207 km).

The current net rating of Unit B differs from its design net capacity by +0.8% (1,188 MW at design, 1,198 MW now).

Build time by unit

Nearest tracked nuclear sites

How these are worked out: ranks use gross operating capacity; ages count from the start-up year on record, as on the age page; build times run from construction start to grid connection, as on the build-times page; ratings are the tracker's net and design net capacity, as on the uprates page. Distances are straight-line between exact positions, so a site with only an approximate position gets none. A unit missing a date or a rating is left out of the figure that needs it.