United States Nuclear Regulatory Commission - Protecting People and the Environment
Home > Facility Locator  >  Operating Nuclear Power Reactors by Location or Name   > Three Mile Island Nuclear Station, Unit 1

Three Mile Island Nuclear Station, Unit 1

Photograph of Three Mile Island 1

Location: Middletown, PA (10 miles SE of Harrisburg, PA) in Region I
Operator: Exelon Generation Co., LLC
Operating License:
Issued - 04/19/1974
Renewed License Issued  - 10/22/2009
License Expires - 04/19/2034
Docket Number: 05000289

Reactor Type: Pressurized Water Reactor
Electrical Output: 786 MWe
Reactor Vendor/Type: Babcock & Wilcox Lowered Loop
Containment Type: Dry, Ambient Pressure

Plant Diagram

Plant Information Contacts
Key Documents Related Information
Page Last Reviewed/Updated Friday, January 20, 2012