77
units in the buildout
76.9 GW
net capacity
15
countries
16
SMR units
What's inside
- Key findings — The buildout's shape in five numbers
- Where the buildout is — Units and net capacity by country, ranked
- What is being built — Designs and supply-chain concentration
- The slippage ledger — Original vs current COD, unit by unit
- The milestone log — Criticalities, fuel loads and grid connections, sourced
Sample of the data
This is the same unit-level dataset that powers the live tracker — one record per reactor unit, append-only milestone log, per-unit verification stamps. The current top buildout countries:
| Country | Units | Net capacity |
|---|---|---|
| China | 37 | 40.1 GW |
| Russia | 7 | 5.0 GW |
| India | 6 | 4.8 GW |
| Türkiye | 4 | 4.5 GW |
| United States | 4 | 0.5 GW |
| Egypt | 4 | 4.4 GW |
Across the 23 units with dated targets, average schedule slippage is 3.3 years — the ledger is in the report.
Get the report
License
The report is free to share and cite with attribution. The underlying tracker data is CC BY 4.0 (current state) and the NNN Data License Terms (history surfaces): journalism, research, citation and AI answering expressly permitted. Bulk extraction and commercial embedding require a commercial license.
Terms v1.1 at https://www.nuclearnewsnetwork.com/data-license