A Collaborative National Center for Fusion & Plasma Research


Tour Arrangements at the Princeton Plasma Physics Laboratory

Come see first-hand the exciting world of fusion energy research at PPPL! Visiting the U.S. Department of Energy’s Princeton Plasma Physics Laboratory is a great opportunity to get a first-hand view of the laboratory where the quest to harness the power of the sun and the stars through fusion energy is taking place.

Our free tours are led by engineers and physicists who can answer all your questions about magnetic fusion. View our new “Star Power” movie, take part in hands-on plasma demonstrations, visit the National Spherical Torus Experiment Control Room and see Quasar, our stellarator experiment! (NSTX is currently undergoing a $94 million upgrade and will reopen in 2015). Click here for a form.

We offer open public tours the first and third Friday of every month except during holidays. (Pre-registration is required). Please click on the date you would like to visit the lab for a public tour to register for the tour. You will need to fill out a form for each member of your party. You will be registered for that tour unless you receive a message about a possible cancellation or overbooking. Please note that the tour is appropriate for children age 12 and over. Also, please note that while we welcome all visitors, we require additional information (citizenship, date of birth, and place of birth) for non-citizens. 

June 5

June 19

July 17

Aug. 7 (Sorry. This tour is now full. Please choose another date.)  

Aug. 21

Sept. 4

Sept. 18

Oct. 2

Oct. 16

Nov. 6  (Sorry. This tour is now full. Please choose another date). 

Nov. 20 (Sorry. This tour is now full. Please choose another date). 

Dec. 4

Dec. 18


We also offer scheduled tours for large groups of 10 or more people who are high school age and older by request at least two weeks in advance. Our tours are generally held on weekdays between 9 a.m. and 2 p.m. Please note that we do not offer tours on weekends or holidays. Plase fill out a form and give your first choice and second-choice dates. Please note that we can't always accommodate large groups of more than 40 people. Please follow up on your request by emailing tours@pppl.gov with a list of everyone in your group as soon as possible after you have made your reservation.  Please include the following additional information for non-U.S. citizens: citizenship, date of birth, and place of birth. 


Where is PPPL located?

The Princeton Plasma Physics Lab is located at 100 Stellarator Road, Princeton, N.J. 08540.

Where can I get directions?

Click here for directions to the Laboratory.

When are tours held?

Public tours are held the first and third Friday of every month at 10 a.m. Other tours are generally held at 10 a.m. or at 2 p.m. on weekdays but that schedule is flexible. The Lab is closed on holidays and for winter break between Dec. 24 and Jan. 4, 2014.  

How much do tours cost? 

All tours of PPPL are free. 

How do I register for an open public tour? 

Click on one of the dates above to register for an open public tour. You must fill out a separate form for each person registering. 

What other information is required? 

Non-citizens must provide the following information: citizenship, date of birth, and place of birth.

How do I schedule a tour for my group or class? 

Fill out a form for your group of 10 or more people with your first and second-choice dates. Then email  tours@pppl.gov with a list of everyone in your group as soon as possible after you have made your reservation.  

What identification do I need to show at the PPPL security booth?

Please be prepared to show a photo ID – such as a license for adult citizens and a school ID for minors.  Non-citizens should bring their passports.

Who can attend the tours?

Our  tours are open to all adults and age 12 and up.  

Is PPPL wheelchair accessible?  

Most of the facility is wheelchair accessible and there is a wheelchair on site available for tours. Please let us know if someone in your group will need to use it so we can make it available for you.  

Are photos allowed?

Yes. You are welcome to take photos during your tour.  If you are using social media, please tag your photos with "PPPLab".

What other security rules does PPPL have?

Please abide by the following regulations for your own health and safety and the Laboratory’s security:

  •  Stay with your group and do not wander outside or inside the building by yourself.
  •  No briefcases or packages.
 No food or drinks.
  •  No high-heeled shoes, open-toed shoes, or sandals.

Where can I park?

Members of tour groups can park in our visitor’s parking lot. After leaving the security booth, drive straight ahead to the parking lot on the right, just past the main building on the left.

Can I eat in the cafeteria?

Please feel free to eat or get a cup of coffee at our cafeteria, which is open weekdays from 7 a.m. to 2 p.m.We ask that you notify us in advance if you have a large group joining us for lunch so we can make special arrangements.

Where is the auditorium?

The Melvin B. Gottlieb auditorium is directly to your left as you enter our main building.

Where are the restrooms?

Restrooms are available directly to your right as you enter the main building.   

Where can I purchase PPPL souvenirs?

You may be able to purchase souvenirs at our Princeton Plasma Hutch in our lobby. The Laboratory’s Plasma Hutch store has PPPL T-shirts, hats, sweatshirts, vests, mugs and other PPPL goodies available for sale. Please let us know in advance if you plan to visit.


U.S. Department of Energy
Princeton Plasma Physics Laboratory is a U.S. Department of Energy national laboratory managed by Princeton University.

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Princeton University
Princeton Plasma Physics Laboratory
P.O. Box 451
Princeton, NJ 08543-0451
GPS: 100 Stellarator Road
Princeton, NJ, 08540
(609) 243-2000