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Limerick Nuclear Plant

21 miles NW of Philadelphia, PA · Pennsylvania

Limerick 1
100%
Power on 10/29/2026
Limerick 2
100%
Power on 10/29/2026

Limerick 1

Docket number
05000352
Reactor type
Boiling water reactor (BWR)
Reactor vendor
General Electric
Licensed thermal power
3,515 MWt
License expires
10/26/2044
Operator
Constellation Energy Generation, LLC
Location
21 miles NW of Philadelphia, PA

Limerick 1 power by month

Average daily power level, last 12 months

Swipe the table sideways to see more columns.

MonthAverage powerDays at 0%Days reported
10/202697.5%029
09/202699.7%030
08/2026100.0%031
07/2026100.0%031
06/2026100.0%030
05/202634.4%1931
04/202676.8%430
03/202697.8%031
02/202699.9%028
01/202699.5%031
12/202599.9%031
11/202599.7%030
10/2025100.0%02

Limerick 2

Docket number
05000353
Reactor type
Boiling water reactor (BWR)
Reactor vendor
General Electric
Licensed thermal power
3,515 MWt
License expires
06/22/2049
Operator
Constellation Energy Generation, LLC
Location
21 miles NW of Philadelphia, PA

Limerick 2 power by month

Average daily power level, last 12 months

Swipe the table sideways to see more columns.

MonthAverage powerDays at 0%Days reported
10/2026100.0%029
09/202697.5%030
08/2026100.0%031
07/202699.6%031
06/2026100.0%030
05/202699.5%031
04/202699.4%030
03/202698.8%031
02/2026100.0%028
01/2026100.0%031
12/2025100.0%031
11/2025100.0%030
10/2025100.0%02

Power levels are the percent of licensed thermal power that each plant reported to the Nuclear Regulatory Commission for the morning of each day. Zero percent usually means the reactor is shut down for refueling or maintenance. This is not a safety rating. For emergencies near a plant, follow your local emergency management agency.

Source: U.S. Nuclear Regulatory Commission, Power Reactor Status Reports and List of Power Reactor Units · Last updated 10/29/2026

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