Located in Lusby, Md., Calvert Cliffs Unit 1 began generating electricity in 1975 and Unit 2 joined the system in 1977. Since then, Calvert Cliffs has continually set records for power production and worker safety.

In March 2000, Calvert Cliffs Nuclear Power Plant opened a new chapter in nuclear power history by becoming the first plant in the United States to earn 20-year extensions of its operating licenses from the U.S. Nuclear Regulatory Commission. Calvert Cliffs Nuclear Power Plant replaced the steam generators in Units 1 and 2 respectively and with Unit 2 set world records in duration and weld quality for this type of replacement. These replacements, as well as other major upgrades, will help the plant continue to safely generate clean electricity for many years to come.

Key Facts
Location: Lusby, MD
 Fuel Type: Nuclear
 Reactor: Pressurized light water reactors
 Capacity: 1,735 MW
   - Unit 1: 873 MW
   - Unit 2: 862 MW

 Online:
   - Unit 1: 1975
   - Unit 2: 1977

 Operating License:
   - Unit 1: 2034
   - Unit 2: 2036

 Ownership: Constellation Energy 100%
 Architect/Engineer/ Constructor: Bechtel Power Corp.
 Turbine manufacturer:
   - Unit 1: General Electric
   - Unit 2: Westinghouse

Environment
Calvert Cliffs Nuclear Power Plant maintains a comprehensive land, forest management, and wildlife protection program, selectively harvesting and replanting trees and ground cover to maintain wildlife habitats. Wild turkey and bobwhite quail flourish. We’ve enrolled 20 acres in the state's Conservation Reserve Enhancement Program, a program to plants trees and deep-rooted grasses to limit runoff and support wildlife.

Since the plant has been in operation, the environment at and around the plant has been rigorously monitored and the monitoring results reported to the Maryland Department of the Environment and the EPA to ensure that we continue to preserve the quality of the air and water.

Security
At Constellation Energy the safety and security of our community, employees and neighbors is the top priority. Constellation has always had a rigorous security program in place at all facilities, particularly at its nuclear power plants including Calvert Cliffs. Since Sept. 11, 2001, the company has built upon this strong foundation to further enhance site security. As a conservative security measure, Calvert Cliffs' Visitor Center and Nature Trail are closed to the public.

Emergency Preparedness
If you live near Calvert Cliffs, please review our information on Emergency Preparedness. Emergency Preparedness Calendar

U.S. Nuclear Regulatory Commission – Current Performance Summary
Calvert Cliffs Unit 1
Calvert Cliffs Unit 2