Energy · 2018

Generation III+ reactors

Passive safety systems cool the core for days with no power or operator action.

After Chernobyl in 1986 and later Fukushima in 2011, designs like the AP1000 added gravity-fed cooling. Sanmen 1 in China became the first AP1000 to operate in 2018, and Vogtle 3 and 4 in Georgia came online in 2023 and 2024.

See it in the living tree Wikipedia

Arcs above join it to what it stood on, arcs below to what it led to. The bar places this stretch on the tree's whole timeline.

What it built on 1

Pressurized water reactor 1957

Related measurements

The dashed line marks when it first worked.

Nuclear electricity generation Latest: 2.81k TWh (2025) Source: Our World in Data

Share of electricity from low-carbon sources Latest: 42.6 % (2025) Source: Our World in Data