Limerick nuclear power plant
Limerick nuclear power plant is a nuclear power station in United States with 2 operating units totalling 2,388 MW gross. The site has 2 units on record in total.
Units
| Unit | Status | Type | Model | Gross MW | Online |
|---|---|---|---|---|---|
| Unit 1 | BWR | BWR-4 (Mark 2) | 1,194 | 1986 | |
| Unit 2 | BWR | BWR-4 (Mark 2) | 1,194 | 1990 |
Limerick nuclear power plant in context
By gross operating capacity Limerick nuclear power plant is the 17th largest of 54 operating nuclear sites in the United States, holding 2% of the country's operating capacity, and ranks 68th of 172 worldwide.
Its operating units started up between 1986 and 1990; the median unit is 38.0 years old, younger than the median of 45.0 in the United States.
The 2 units with both construction and grid dates on record took 10.8 to 15.2 years (median 13.0) from construction start to grid connection; the median across all reactors connected in the 1980s is 7.3 years.
The nearest other tracked nuclear sites are Peach Bottom nuclear power plant (78 km), Hope Creek nuclear power plant (84 km) and Salem nuclear power plant (85 km).
2 operating units are rated differently now from their design net capacities: Unit 1 +7.5% and Unit 2 +7.5%.
Build time by unit
| Unit | Construction start | Grid connection | Years | Fleet median, same decade |
|---|---|---|---|---|
| Unit 1 | 1974 | 1985 | 10.8 | 7.3 (1980s) |
| Unit 2 | 1974 | 1989 | 15.2 | 7.3 (1980s) |
Nearest tracked nuclear sites
| Site | Country | Distance | Operating GW gross |
|---|---|---|---|
| Peach Bottom nuclear power plant | United States | 78 km | 2.8 |
| Hope Creek nuclear power plant | United States | 84 km | 1.2 |
| Salem nuclear power plant | United States | 85 km | 2.5 |
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 Limerick 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 | Limerick Township, Pennsylvania, United States |
|---|---|
| Coordinates | 40.2243, -75.5874 |
| Elevation | about 80 mabove sea level |
| Setting | 45.9 km from the sea |
| Region | Northern America |
| Units by status | Operating: 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 | Exelon Corp |
|---|---|
| Operators | Exelon Generation |
Put this plant on your own page: embed a card, or compare it with another plant.
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