Millstone 1 — Nuclear Facility Information

Technical specifications, NRC licensing data, photos, nearby jobs, satellite map, contact information, and per diem rates for Millstone 1.

DECON

Permanently shut down on 1998-07-01.

Location & Contact

?
Physical address, phone number, and website for this facility. Use the directions link to get driving directions via Google Maps.
Address:
Rope Ferry Road
Waterford, CT 06385, USA
Get Directions
Phone: (860) 444-5797

Per Diem Rates FY 2026

?
Per diem covers lodging and meals & incidental expenses (M&IE) for government and contractor travel near this facility. Rates are from GSA for FY 2026.
$124
Lodging/Night
$86
M&IE/Day
$210
Total/Day
New London / Groton, New London County, CT

Unemployment Benefits CT

?
Maximum state unemployment insurance benefits for CT. Actual benefits depend on your earnings history and may be lower than the maximum. Data as of Jan 2026.
$826
Max Weekly
26
Max Weeks
$21,476
Max Total

Ownership & Construction

?
The utility or company that owns and operates the facility, the architect-engineer responsible for plant design, and the primary construction contractor. Click names to view all facilities by that entity on the map.
Owner/Operator: Dominion Energy
Architect Engineer: EBSO
Constructor: EBSO
D Dominion Energy, Inc. NYSE
$68.61 ▼ -0.16 (-0.23%)
Previous Close 68.77
Day's Range 68.60 – 69.75
52-Week Range 55.85 – 72.99
Volume 2,214,178
Delayed quote as of Aug 18, 2026 4:04 PM ET. Source: Yahoo Finance. Full quote on Yahoo Finance
Dominion Energy and NextEra Energy (NEE) announced a merger on 2026-05-18. It is still subject to regulatory and shareholder approval, so Dominion remains the owner of record here until the deal closes.

Technical Specs

?
Reactor design specifications including type (PWR/BWR), containment design, nuclear steam supply system manufacturer, thermal and electrical power ratings, and current operational status.
Reactor Type: BWR
Containment: BWR-MARK1
NSS Supplier: GE 3
Thermal Power: 2011 MWt
Net Capacity: 641 MWe
Status: DECON

Licensing

?
NRC licensing history including docket number, license type and number, construction permit date, operating license issuance, commercial operation date, license renewal, and expiration date.
Docket #: 05000245
License #: DPR-21
License Type: OL-FP
Const. Permit: 1966-05-19
Operating Lic: 1986-10-31
Commercial Op: 1971-03-01
License Exp: 2010-10-06