Mochovce 4 begins supplying first electricity to Slovakia’s grid
Slovenské elektrárne synchronized the first of Mochovce nuclear plant’s two Unit 4 turbine generators with Slovakia’s transmission grid on 15 October. The reactor was operating at 20% power as it delivered its first megawatt-hours.
Event / data period: 2026-10-15
Published: · Updated:

The milestone does not mean the unit has entered full commercial operation. The company said the second generator will be synchronized later and that safety and control systems will undergo staged tests as output rises toward nominal capacity.
Data
Unit 4 capacity
Installed electrical capacity reported by the source.
| Installed electrical capacity | 471 |
Methodology
Installed capacity is reported by the source; no calculation added.
Updated:
Subjects and places
Subject proposals
- ElectricitySuggested
- Subject suggested from the title or summary: electricity, transmission gridwww.epgroup.eu ↗
- Nuclear powerSuggested
- Subject suggested from the title or summary: nuclear plantwww.epgroup.eu ↗
Geographic references
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- Slovakia · Place role: Coverage · Place type: Country or area · Location precision: RegionalEvidence
- Explicit preserved editorial country/region; no city or national centroid inferredwww.epgroup.eu ↗