International edition
Nuclear News Network

Reporting the buildout, from mine to megawatt

Reactor TrackerSK

Mochovce-4

VVER-440/V-213 · 440 MWe · Under construction · commercial operation est. 2026

Seeded record — the verification pass (two independent sources) has not yet confirmed every field. Treat estimates as provisional.

Current state

StatusUnder construction
DesignVVER-440/V-213 (PWR)
Net capacity440 MWe
CountrySK
VendorŠkoda/Rosatom lineage
Owner / operatorSlovenské elektrárne
Construction start1987
Original COD target
Current COD estimate2026
Schedule slippage

Notes

Soviet-era start; completion resumed decades later — unit 3 entered service 2023. Bulk-seeded 2026-07-13 from the WNA under-construction table (updated 2026-06-16). Capacity is design-typical net output; construction dates are provisional. Verification agent to confirm against IAEA PRIS and append milestones.

Milestone log

  • 2026-06-16Listed as under construction in the WNA world table, grid connection estimated 2026 (source)

The milestone log is append-only: corrections are recorded as new entries, never rewrites. Full history via /api/v1/changes.

Sources

  1. https://world-nuclear.org/information-library/current-and-future-generation/plans-for-new-reactors-worldwide
  2. https://pris.iaea.org/pris/