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DENE0009054↗

US SFR Owner LLC received this grant or assistance award from Department of Energy: $1.53B obligated so far for nuclear energy research, development and demonstration. Its latest action was on 2026-09-16.

Key facts · data as of Oct 25, 2026

Recipient
US SFR Owner LLC
Awarding agency
Department of Energy
Obligated to date
$1.53B

Source: USAspending.gov prime award records (obligations: money committed, not outlays), data as of Oct 25, 2026.

Cite this page: SpendQuery, Award DENE0009054, data as of Oct 25, 2026, https://spendquery.com/award?id=ASST_NON_DENE0009054_089

US SFR Owner LLC: all federal awards · Department of Energy: spending

THIS COOPERATIVE AGREEMENT IS MADE AS A RESULT OF THE APPLICANT’S SUBMISSION SELECTED UNDER FOA DE-FOA-0002271, ADVANCED REACTOR DEMONSTRATION.

Cooperative Agreement (B) · Department of Energy · to US SFR Owner LLC (UEI HVKCEHKLJ921) · data as of 2026-10-25

Obligated to date$1.53B26 actions
Period2022-12-06 → 2026-09-16first to last action

What it is

Program
Nuclear Energy Research, Development and Demonstration (Assistance Listing 81.121)
Where the work is
King, WA

Obligations by fiscal year

FY2023$380.67M
FY2024$104.97M
FY2025$334.68M
FY2026$713.90M

SpendQuery holds FY2023 on; earlier years are on USAspending.gov.

Subrecipients: where the money went next

No subawards reported for this award. Primes report subawards of $30,000 or more; many awards have none.

Every action

26 actions since 2022-12-06. Each is a modification or amendment with the money it added or took back.

DateAmendmentKindAmountWhat the agency wrote
2026-09-160033Revision$0THIS COOPERATIVE AGREEMENT IS MADE AS A RESULT OF THE APPLICANT’S SUBMISSION SELECTED UNDER FOA DE-FOA-0002271, ADVANCED REACTOR DEMONSTRATION.
2026-08-050032Revision$713.90MTHIS COOPERATIVE AGREEMENT IS MADE AS A RESULT OF THE APPLICANT’S SUBMISSION SELECTED UNDER FOA DE-FOA-0002271, ADVANCED REACTOR DEMONSTRATION.
2026-04-200031Continuation$0THIS COOPERATIVE AGREEMENT IS MADE AS A RESULT OF THE APPLICANT’S SUBMISSION SELECTED UNDER FOA DE-FOA-0002271, ADVANCED REACTOR DEMONSTRATION.
2026-03-020030Revision$0THIS COOPERATIVE AGREEMENT IS MADE AS A RESULT OF THE APPLICANT’S SUBMISSION SELECTED UNDER FOA DE-FOA-0002271, ADVANCED REACTOR DEMONSTRATION.
2025-12-010029Revision$0THIS COOPERATIVE AGREEMENT IS MADE AS A RESULT OF THE APPLICANT’S SUBMISSION SELECTED UNDER FOA DE-FOA-0002271, ADVANCED REACTOR DEMONSTRATION.
2025-09-220028Continuation$334.92MTHIS COOPERATIVE AGREEMENT IS MADE AS A RESULT OF THE APPLICANT’S SUBMISSION SELECTED UNDER FOA DE-FOA-0002271, ADVANCED REACTOR DEMONSTRATION.
2025-07-170027Revision-$238.4KTHIS MODIFICATION MAKES THE FOLLOWING CHANGES: 1. REPLACE PI TARA NEIDER WITH ERIC S WILLIAMS. 2. REPLACE BUDGET PERIOD 3 END DATE FROM 06/30/2025 TO 07/31/2025. 3. DEOBLIGATION OF FUNDING BY $238,450.00 FROM $648,354,867.00 TO $648,116,417.00. THE…
2025-06-040026Revision$0THE OBJECTIVE OF OUR PROPOSED PROJECT FOR THE ADVANCED REACTOR DEMONSTRATION PATHWAY IS TO DESIGN, LICENSE, CONSTRUCT, AND OPERATE A 336/500 MWE (STEADY-STATE/PEAK POWER) NATRIUM COMMERCIAL DEMONSTRATION REACTOR (THE “NATRIUM DEMO”).
2025-05-060025Revision$0THE OBJECTIVE OF OUR PROPOSED PROJECT FOR THE ADVANCED REACTOR DEMONSTRATION PATHWAY IS TO DESIGN, LICENSE, CONSTRUCT, AND OPERATE A 336/500 MWE (STEADY-STATE/PEAK POWER) NATRIUM COMMERCIAL DEMONSTRATION REACTOR (THE “NATRIUM DEMO”).
2024-12-230024Revision$0THE OBJECTIVE OF OUR PROPOSED PROJECT FOR THE ADVANCED REACTOR DEMONSTRATION PATHWAY IS TO DESIGN, LICENSE, CONSTRUCT, AND OPERATE A 336/500 MWE (STEADY-STATE/PEAK POWER) NATRIUM COMMERCIAL DEMONSTRATION REACTOR (THE “NATRIUM DEMO”).
2024-09-300023Revision$0THE OBJECTIVE OF OUR PROPOSED PROJECT FOR THE ADVANCED REACTOR DEMONSTRATION PATHWAY IS TO DESIGN, LICENSE, CONSTRUCT, AND OPERATE A 336/500 MWE (STEADY-STATE/PEAK POWER) NATRIUM COMMERCIAL DEMONSTRATION REACTOR (THE “NATRIUM DEMO”).
2024-08-280022Revision-$2.88MTHE OBJECTIVE OF OUR PROPOSED PROJECT FOR THE ADVANCED REACTOR DEMONSTRATION PATHWAY IS TO DESIGN, LICENSE, CONSTRUCT, AND OPERATE A 336/500 MWE (STEADY-STATE/PEAK POWER) NATRIUM COMMERCIAL DEMONSTRATION REACTOR (THE “NATRIUM DEMO”).
2024-07-100021Revision$0THE OBJECTIVE OF OUR PROPOSED PROJECT FOR THE ADVANCED REACTOR DEMONSTRATION PATHWAY IS TO DESIGN, LICENSE, CONSTRUCT, AND OPERATE A 336/500 MWE (STEADY-STATE/PEAK POWER) NATRIUM COMMERCIAL DEMONSTRATION REACTOR (THE “NATRIUM DEMO”).
2024-06-130020Revision$107.85MTHE OBJECTIVE OF OUR PROPOSED PROJECT FOR THE ADVANCED REACTOR DEMONSTRATION PATHWAY IS TO DESIGN, LICENSE, CONSTRUCT, AND OPERATE A 336/500 MWE (STEADY-STATE/PEAK POWER) NATRIUM COMMERCIAL DEMONSTRATION REACTOR (THE “NATRIUM DEMO”).
2024-05-170019Revision$0THE OBJECTIVE OF OUR PROPOSED PROJECT FOR THE ADVANCED REACTOR DEMONSTRATION PATHWAY IS TO DESIGN, LICENSE, CONSTRUCT, AND OPERATE A 336/500 MWE (STEADY-STATE/PEAK POWER) NATRIUM COMMERCIAL DEMONSTRATION REACTOR (THE “NATRIUM DEMO”).
2024-04-150018Revision$0THE OBJECTIVE OF OUR PROPOSED PROJECT FOR THE ADVANCED REACTOR DEMONSTRATION PATHWAY IS TO DESIGN, LICENSE, CONSTRUCT, AND OPERATE A 336/500 MWE (STEADY-STATE/PEAK POWER) NATRIUM COMMERCIAL DEMONSTRATION REACTOR (THE “NATRIUM DEMO”).
2024-03-290017Revision$0THE OBJECTIVE OF OUR PROPOSED PROJECT FOR THE ADVANCED REACTOR DEMONSTRATION PATHWAY IS TO DESIGN, LICENSE, CONSTRUCT, AND OPERATE A 336/500 MWE (STEADY-STATE/PEAK POWER) NATRIUM COMMERCIAL DEMONSTRATION REACTOR (THE “NATRIUM DEMO”).
2024-01-310016Revision$0THE OBJECTIVE OF OUR PROPOSED PROJECT FOR THE ADVANCED REACTOR DEMONSTRATION PATHWAY IS TO DESIGN, LICENSE, CONSTRUCT, AND OPERATE A 336/500 MWE (STEADY-STATE/PEAK POWER) NATRIUM COMMERCIAL DEMONSTRATION REACTOR (THE “NATRIUM DEMO”).
2023-09-280015Revision$195.04MTHE OBJECTIVE OF OUR PROPOSED PROJECT FOR THE ADVANCED REACTOR DEMONSTRATION PATHWAY IS TO DESIGN, LICENSE, CONSTRUCT, AND OPERATE A 336/500 MWE (STEADY-STATE/PEAK POWER) NATRIUM COMMERCIAL DEMONSTRATION REACTOR (THE “NATRIUM DEMO”).
2023-08-290014Revision$108.88MTHE OBJECTIVE OF OUR PROPOSED PROJECT FOR THE ADVANCED REACTOR DEMONSTRATION PATHWAY IS TO DESIGN, LICENSE, CONSTRUCT, AND OPERATE A 336/500 MWE (STEADY-STATE/PEAK POWER) NATRIUM COMMERCIAL DEMONSTRATION REACTOR (THE “NATRIUM DEMO”).
2023-08-240013Revision-$108.88MTHE OBJECTIVE OF OUR PROPOSED PROJECT FOR THE ADVANCED REACTOR DEMONSTRATION PATHWAY IS TO DESIGN, LICENSE, CONSTRUCT, AND OPERATE A 336/500 MWE (STEADY-STATE/PEAK POWER) NATRIUM COMMERCIAL DEMONSTRATION REACTOR (THE “NATRIUM DEMO”).
2023-05-260012Revision$0THE OBJECTIVE OF OUR PROPOSED PROJECT FOR THE ADVANCED REACTOR DEMONSTRATION PATHWAY IS TO DESIGN, LICENSE, CONSTRUCT, AND OPERATE A 336/500 MWE (STEADY-STATE/PEAK POWER) NATRIUM COMMERCIAL DEMONSTRATION REACTOR (THE “NATRIUM DEMO”).
2023-05-020010Revision$0THE OBJECTIVE OF OUR PROPOSED PROJECT FOR THE ADVANCED REACTOR DEMONSTRATION PATHWAY IS TO DESIGN, LICENSE, CONSTRUCT, AND OPERATE A 336/500 MWE (STEADY-STATE/PEAK POWER) NATRIUM COMMERCIAL DEMONSTRATION REACTOR (THE “NATRIUM DEMO”).
2023-04-260009Continuation$76.75MTHE OBJECTIVE OF OUR PROPOSED PROJECT FOR THE ADVANCED REACTOR DEMONSTRATION PATHWAY IS TO DESIGN, LICENSE, CONSTRUCT, AND OPERATE A 336/500 MWE (STEADY-STATE/PEAK POWER) NATRIUM COMMERCIAL DEMONSTRATION REACTOR (THE “NATRIUM DEMO”).
2023-02-240008Revision$0THE OBJECTIVE OF OUR PROPOSED PROJECT FOR THE ADVANCED REACTOR DEMONSTRATION PATHWAY IS TO DESIGN, LICENSE, CONSTRUCT, AND OPERATE A 336/500 MWE (STEADY-STATE/PEAK POWER) NATRIUM COMMERCIAL DEMONSTRATION REACTOR (THE “NATRIUM DEMO”).
2022-12-060007Revision$108.88MADVANCED REACTOR DEMONSTRATION PROGRAM THIS MODIFICATION IS TO: 1. PROVIDE INCREMENTAL FUNDING IN THE AMOUNT OF $108,881,274.00.

Source: USAspending.gov prime award transactions and FSRS subaward reports, as loaded by SpendQuery (data as of 2026-10-25). Amounts are obligations (money committed), not outlays. The official record on USAspending.gov ↗