Kozloduy nuclear power plant
Kozloduy nuclear power plant is a nuclear power station in Bulgaria with 2 operating units totalling 2,080 MW gross. The site has 8 units on record in total.
Units
| Unit | Status | Type | Model | Gross MW | Online |
|---|---|---|---|---|---|
| Unit 5 | PWR | VVER V-320 | 1,040 | 1988 | |
| Unit 6 | PWR | VVER V-320 | 1,040 | 1993 | |
| Unit 1 | Retired | PWR | VVER V-230 | 440 | 1974 |
| Unit 2 | Retired | PWR | VVER V-230 | 440 | 1975 |
| Unit 3 | Retired | PWR | VVER V-230 | 440 | 1981 |
| Unit 4 | Retired | PWR | VVER V-230 | 440 | 1982 |
| Unit 7 | Pre-construction | PWR | AP-1000 | 1,000 | 2035 |
| Unit 8 | Pre-construction | PWR | AP-1000 | 1,000 | 2037 |
Kozloduy nuclear power plant in context
Kozloduy nuclear power plant is the only operating nuclear site in Bulgaria on record, so it holds all of the country's operating capacity, and ranks 84th of 172 operating sites worldwide by gross capacity.
Its operating units started up between 1988 and 1993; the median unit is 35.5 years old.
The 6 units with both construction and grid dates on record took 4.3 to 9.3 years (median 7.3) from construction start to grid connection; the median across all reactors connected in the 1980s is 7.3 years.
No other nuclear site with an exact position in this dataset lies within 300 km.
The current net rating of Unit 5 differs from its design net capacity by +5.2% (953 MW at design, 1,003 MW now).
Build time by unit
| Unit | Construction start | Grid connection | Years | Fleet median, same decade |
|---|---|---|---|---|
| Unit 1 | 1970 | 1974 | 4.3 | 5.4 (1970s) |
| Unit 2 | 1970 | 1975 | 5.4 | 5.4 (1970s) |
| Unit 3 | 1973 | 1980 | 7.2 | 7.3 (1980s) |
| Unit 4 | 1973 | 1982 | 8.6 | 7.3 (1980s) |
| Unit 5 | 1980 | 1987 | 7.4 | 7.3 (1980s) |
| Unit 6 | 1982 | 1991 | 9.3 | 8.0 (1990s) |
How these are worked out: ranks use gross operating capacity; ages count from the start-up year on record, as on the age page; build times run from construction start to grid connection, as on the build-times page; ratings are the tracker's net and design net capacity, as on the uprates page. Distances are straight-line between exact positions, so a site with only an approximate position gets none. A unit missing a date or a rating is left out of the figure that needs it.
Earthquakes nearby
Loading the latest USGS check…
| Time (UTC) | Mag | Depth | Epicentre | Distance |
|---|
Magnitude 4.0 and above within 200 km of Kozloduy nuclear power plant's listed coordinates, past 30 days. This is distance, not shaking: it says nothing about damage or any change in operation. Every plant.
| Location | Vratsa, Bulgaria |
|---|---|
| Coordinates | 43.7497, 23.7685 |
| Elevation | about 35 mabove sea level |
| Setting | About 320 km from the sea |
| Region | Eastern Europe |
| Units by status | Operating: 2 Retired: 4 Pre-construction: 2 |
Elevation is read at the listed coordinates from a 30 m terrain model (SRTM 30 m). Two independent models differ by a median of 6 m across our plants and by up to about 40 m on steep or coastal ground, and a point on a shoreline can read as sea level. Distance to the water is measured to a generalised 1:10 million coastline, so a few kilometres or less is not resolved. This is context, not a design-basis or flood-risk figure.
| Owners | DP RAO (State Enterprise “Radio Active Waste”) Bulgarian Energy Holding EAD |
|---|---|
| Operators | not disclosed |
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Sources
- Global Nuclear Power Tracker, Global Energy Monitor, August 2026 release , CC BY 4.0 · retrieved 2026-09-06
- GEM.wiki entry (further reading) , CC BY-SA 4.0, linked, not quoted
How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data