Stone to Silicon

Energy · around 2031

Small modular reactors in service

Projection

Factory-built reactors arrive by truck and slot into old coal sites and data-centre campuses.

Small modular reactors shrink fission plants to a few hundred megawatts or less so they can be mass-produced. Fleets of them would give firm low-carbon power without decade-long megaprojects.

Why it’s plausible: Several designs are licensed or under construction; the dependency is whether serial factory production actually lowers costs, which only a sustained order book can show.

See it in the living treeWikipedia

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 4

Related measurements

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

World electricity generation Latest: 31.8k TWh (2025) Source: Our World in Data