Temelin nuclear power plant
Temelin nuclear power plant is a nuclear power station in Czech Republic with 2 operating units totalling 2,164 MW gross. The site has 7 units on record in total.
Units
| Unit | Status | Type | Model | Gross MW | Online |
|---|---|---|---|---|---|
| Unit 1 | PWR | VVER V-320 | 1,082 | 2002 | |
| Unit 2 | PWR | VVER V-320 | 1,082 | 2003 | |
| Unit 3 | Announced | PWR | APR-1000 | 1,200 | - |
| Unit 4 | Announced | PWR | APR-1000 | 1,200 | - |
| Unit Original 3 | Cancelled | PWR | VVER V-320 | 1,000 | - |
| Unit Original 4 | Cancelled | PWR | VVER V-320 | 1,000 | - |
| Unit SMR | Announced | - | SMR | 300 | 2035 |
Unit by unit
Each unit's rating, type and milestone dates as recorded by the Global Nuclear Power Tracker, with any correction we made to it. A dash or "not disclosed" means the source does not give the value.
Temelin nuclear power plant 1
| Reactor type | Pressurised water reactor (PWR) |
|---|---|
| Model | VVER V-320 |
| Size class | Large |
| Gross capacity | 1,082MW |
| Net capacity | 1,027MW |
| Thermal output | 3,120MWt |
| Enrichment | 3–5% U-235 |
| NSSS vendor | Rosatom |
| Owner | CEZ AS100% |
| Operator | CEZ |
| Construction start | 1 Feb 1987 |
|---|---|
| First criticality | 11 Oct 2000 |
| Grid connection | 21 Dec 2000 |
| Commercial operation | 10 Jun 2002 |
Temelin nuclear power plant 2
| Reactor type | Pressurised water reactor (PWR) |
|---|---|
| Model | VVER V-320 |
| Size class | Large |
| Gross capacity | 1,082MW |
| Net capacity | 1,029MW |
| Thermal output | 3,120MWt |
| Enrichment | 3–5% U-235 |
| NSSS vendor | Rosatom |
| Owner | CEZ AS100% |
| Operator | CEZ |
| Construction start | 1 Feb 1987 |
|---|---|
| First criticality | 31 May 2002 |
| Grid connection | 29 Dec 2002 |
| Commercial operation | 18 Apr 2003 |
Temelin nuclear power plant 3 Announced
| Reactor type | Pressurised water reactor (PWR) |
|---|---|
| Model | APR-1000 |
| Size class | Large |
| Gross capacity | 1,200MW |
| Net capacity | not disclosed |
| Thermal output | not disclosed |
| Enrichment | 3–5% U-235 |
| NSSS vendor | not on record |
| Owner | Government of Czech Republic80% CEZ AS20% |
| Operator | CEZ |
| Milestones | no dates on record |
|---|
Temelin nuclear power plant 4 Announced
| Reactor type | Pressurised water reactor (PWR) |
|---|---|
| Model | APR-1000 |
| Size class | Large |
| Gross capacity | 1,200MW |
| Net capacity | not disclosed |
| Thermal output | not disclosed |
| Enrichment | 3–5% U-235 |
| NSSS vendor | not on record |
| Owner | Government of Czech Republic80% CEZ AS20% |
| Operator | CEZ |
| Milestones | no dates on record |
|---|
Temelin nuclear power plant Original 3 Cancelled
| Reactor type | Pressurised water reactor (PWR) |
|---|---|
| Model | VVER V-320 |
| Size class | Large |
| Gross capacity | 1,000MW |
| Net capacity | not disclosed |
| Thermal output | not disclosed |
| Enrichment | 3–5% U-235 |
| NSSS vendor | Rosatom |
| Cancelled | 1990 |
| Construction start | 1 Jan 1987 |
|---|
Temelin nuclear power plant Original 4 Cancelled
| Reactor type | Pressurised water reactor (PWR) |
|---|---|
| Model | VVER V-320 |
| Size class | Large |
| Gross capacity | 1,000MW |
| Net capacity | not disclosed |
| Thermal output | not disclosed |
| Enrichment | 3–5% U-235 |
| NSSS vendor | Rosatom |
| Cancelled | 1990 |
| Construction start | 1 Jan 1987 |
|---|
Temelin nuclear power plant SMR Announced
| Reactor type | small modular reactor |
|---|---|
| Model | SMR |
| Size class | Small |
| Gross capacity | 300MW |
| Net capacity | not disclosed |
| Thermal output | not disclosed |
| Enrichment | not established |
| NSSS vendor | not on record |
| Owner | CEZ AS100% |
| Commercial operation | 1 Jan 2035 |
|---|
Temelin nuclear power plant in context
By gross operating capacity Temelin nuclear power plant is the 1st largest of 2 operating nuclear sites in the Czech Republic, holding 52% of the country's operating capacity, and ranks 78th of 172 worldwide.
Its operating units started up between 2002 and 2003; the median unit is 23.5 years old, younger than the median of 39.5 in the Czech Republic.
The 2 units with both construction and grid dates on record took 13.9 to 15.9 years (median 14.9) from construction start to grid connection; the median across all reactors connected in the 2000s is 6.8 years.
Build time by unit
| Unit | Construction start | Grid connection | Years | Fleet median, same decade |
|---|---|---|---|---|
| Unit 1 | 1987 | 2000 | 13.9 | 6.8 (2000s) |
| Unit 2 | 1987 | 2002 | 15.9 | 6.8 (2000s) |
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 Temelin 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 | Jihočeský, Czech Republic |
|---|---|
| Coordinates | 49.1796, 14.3795approximate |
| Elevation | not given: the position is only approximate |
| Setting | not given: the position is only approximate |
| Region | Eastern Europe |
| Units by status | Operating: 2 Announced: 3 Cancelled: 2 |
| Owners | CEZ AS Government of Czech Republic |
|---|---|
| Operators | CEZ |
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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