US Department of Energy
US Department of Energy is a USA company active in the nuclear fuel chain as haleu, repository.
Owner of the American weapons complex and, by inheritance, of most of the country's back end. It runs the only operating deep geological repository in the world, holds the legal obligation to collect utilities' spent fuel that it has never once discharged, and is currently the source of nearly all American HALEU through downblending its own weapons-origin material.
| Headquarters | Washington DC, United States |
|---|---|
| Founded | 1977 |
| Ownership | state |
| Roles in the chain | haleu, repository |
Position in the chain
Downstream
Output from this company feeds the stages below it in the chain, and ultimately 419 operating reactors across these types.
| Reactor type | Operating units |
|---|---|
| Pressurised water reactor | 309 |
| Pressurised heavy water reactor | 46 |
| Boiling water reactor | 45 |
| Gas-cooled reactor | 9 |
| Light water graphite reactor | 7 |
| Fast reactor | 2 |
| High-temperature gas reactor | 1 |
Facilities
| Facility | Stage | Country | Capacity / output | Status |
|---|---|---|---|---|
| Savannah River Site HEU downblending | haleu | USA | 3,100kg HALEU total | operating |
| Idaho National Laboratory EBR-II downblending | haleu | USA | not disclosed | operating |
| Yucca Mountain | repository | USA | 70,000tHM total | closed |
| Waste Isolation Pilot Plant | repository | USA | not disclosed | operating |
US Department of Energy in context
US Department of Energy has 4 facilities on record in 1 country (United States): 3 operating. The oldest operating one was commissioned in 1999.
How these are worked out: shares and ranks use the world totals cited in the table, and only named companies are ranked (unnamed or country-level entries in a source are not). A facility with no stated capacity is counted as a facility but adds nothing to a capacity figure. Vendor figures count operating units where this company is the recorded reactor vendor; ages count from the start-up year on record, and build times run from construction start to grid connection, as on the age and build-times pages.
Sources
- US Department of Energy, company source
- Global Nuclear Power Tracker, Global Energy Monitor, August 2026 release , CC BY 4.0 · retrieved 2026-09-06
How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data