The Cook Energy Center is currently open to school groups only. All schools must schedule their tours in advance; no drop-in tours are available.

Annual Testing of Individual Early Warning Sirens Near Cook Plant

Indiana Michigan Power (I&M) will conduct separate tests on each of the 70 early warning sirens near the Cook Nuclear Plant during the weeks of August 31, September 7 and September 14. The sirens are within a 10-mile radius of the plant and would be activated by the Berrien County Emergency Management Department to alert the public to emergency situations. This could include severe weather, industrial or transportation chemical spills or activation of the Cook Nuclear Plant emergency plan.

Unlike the annual spring test where all sirens run simultaneously, this testing involves sounding each siren individually three to four times for about 30 seconds to obtain readings and make adjustments to ensure proper coverage and reliability. Annual preventive maintenance and battery checks will also be performed.

Testing will be suspended during severe weather conditions to avoid confusion with an actual emergency. In the event of an actual emergency, early warning sirens are all sounded continuously for three minutes.

Testing is expected to take place in various locations Monday through Friday between 8:00 a.m. and 6:00 p.m. during the three-week testing period. Testing will not take place on Labor Day, Monday, September 7.

The regular first Saturday of the month test at 1:00 p.m. where all sirens are simultaneously sounded for approximately one minute will take place on September 5.

Cook Limnotech lake buoy

Lake Michigan Weather Buoy Information
Lake Michigan weather buoy information - The Cook Plant has a weather buoy located two and one half miles from the shore in 70 feet of water and will remain in operation through the fall.

Information about the buoy and a link to real-time data is available at

We're on Facebook
We’ve created a page so you can learn more about what’s happening at the Cook Nuclear Plant, and so we can respond to your questions and comments. Give us a look and a "like" and check out our new video "My Life at Cook Plant." We will also keep it fresh with new photos of the work that takes place at the Cook Nuclear Plant. Visit us on Facebook

Japan Response

Emergency booklet (PDF : 5.21 MB : get viewer)

Cook Plant Safety
AEP’s Cook Nuclear Plant is designed to withstand extreme environmental hazards, including tornados, floods and earthquakes. Learn more about AEP's Cook Nuclear Plant

Request A Speaker
Would you like a speaker from the Cook Nuclear Plant to talk to your school, business, non-profit, church or other group? If so, click here and briefly state in the email what subject you would like us to talk about. We'll set up a time and date and have one of our subject matter experts present on subjects such as:

  • How we safely produce electricity at a nuclear power plant.
  • Dry cask storage of used fuel.
  • Radiation safety at a nuclear power plant.

Learn More About Nuclear Energy
The exciting new hands on exhibits in the lobby of Cook Energy Center are just the beginning. Schedule a fun "Power Trip" with Dr. Nate for your class and learn how nuclear energy is produced and used.

Exercise Your Body and Mind
Take a walk on our beautiful nature trails and learn more about the local topography and geography through educational postings along the way. Or just watch the wildlife from our indoor viewing area.

We are located on Red Arrow Highway, 3-1/2 miles North of Bridgman, Michigan (take exit 16 from I-94). All schools must schedule their tours in advance; no drop-in tours are available. Please call 800-548-2555 to schedule a group "Power Trip" through our educational facilities.

Job Opportunities
Visit AEP's Career Center to explore the latest job opportunities available in Bridgman, MI at the Cook Nuclear Plant and adjoining facilities.

Rotational Engineer and Summer Intern Programs
An understanding of the roles and responsibilities of the various departments and personnel at the plant can be gained prior to being assigned a permanent position through Cook's Rotational Engineer Program. Additionally, students have the opportunity to supplement their education with practical experience outside the university setting by participating in our Summer Intern Program.

Learn More
Heart of Cook Brochure
How to apply for grants to support SW Michigan area not-for-profit programs.

In Case of an Emergency
What to do in the unlikely event of a nuclear plant or other area-wide emergency.

Contact Information:
Cook Energy Center
P.O. Box 850
Bridgman, MI 49106