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 2016. 

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 can assume you are 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 older. Also, please note that while we welcome all visitors, we require additional information (citizenship, date of birth, and place of birth) for non-citizens.

Please note that there is public tour on Feb. 19 due to the U.S. Department of Energy's New Jersey Regional Science Bowl. 

If you are interested in a public tour on another date in 2016, please check in a couple of weeks when our new tour calendar for public tours should be available.

We also offer scheduled group tours for large groups of 10 or more people who are middle-school age or older by request at least two weeks in advance. Our tours are generally held on weekdays at 10 a.m. or 2 p.m. Please note that we do not offer tours on weekends or holidays. 

If you are a group of 10 or more people and would like to request a group tour in January, please fill out a form here.

Please note that you will need to submit a full list with the names of everyone in your group and the following additional information for non-citizens: citizenship, date of birth, and place of birth. If you would like to request a tour later in the year in 2016, please check back in a couple of weeks when a new tour calendar for group tours will be available. Thank you. 


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 Christmas and New Year's Day. The Lab is also closed on Memorial Day, the Fourth of July, Labor Day, Thanksgiving, and the day after Thanksgiving. 

How much do tours cost? 

All tours of PPPL are free. 

How do I register for an open public tour? 

Our tour calendar is currently being revamped. Click on the link above to register for our Jan. 15 tour or check back in a couple of weeks when our new tour calendar will be available. 

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? 

A new calendar will be available soon. If you are planning a visit in January, please use the link above to fill out a form. 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 call our cafeteria manager Mark Gazo, 609-243-3350 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