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2024-06-21 23:59:59 US/Eastern Time

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Advanced Nuclear Power for Installations (ANPI)

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Project Description

Problem Statement

The US Army seeks to prototype on-site micro-reactor nuclear power plant(s) to address its energy resilience needs through the Advanced Nuclear Power for Installations (ANPI) program to provide electricity generation and distribution.

Currently, the US Army is reliant on off-site electricity providers to obtain energy in support of its critical mission to ensure our nation’s security. The Army is also dependent on off-site electricity to conduct its globe-spanning missions in air, land, sea, space, and cyberspace. This energy dependence creates mission risks due to disruptions from extreme weather and cybersecurity attacks. While current renewable energy solutions, such as wind and solar energy are carbon-free, they are intermittent, and require battery storage or other solutions to mitigate the intermittency.

Therefore, the Army is seeking a novel approach using recent advances in the nuclear industry that can provide continuous/reliable power regardless of weather conditions to 1) maintain military mission continuity and 2) comply with Congressional mandate under the 2021 National Defense Authorization Act to provide its critical missions with a goal of 99.9 percent reliable energy by 2030.

The objectives of the prototype include:

  • Provide mission readiness through energy resilience.

  • Deploy nuclear power to Army installations and demonstrate the capability of nuclear power to provide safe, secure, reliable, and environmentally compliant electricity in support of Army installation readiness goals for mission critical assets and empower the warfighter.

  • Address resiliency needs of the US Government’s critical infrastructure while simultaneously stimulating micro reactor development and supply chain in the U.S.

The US Army is seeking Solution Briefs for a full lifecycle micro reactor power plant that would notionally start operations at an Army installation located in the Continental United States before the end of calendar year 2030. Briefs should include all stages of a micro reactor’s lifecycle: design, construction, operation, deconstruction, and returning the site to an unrestricted release status.

Final solutions will follow a regulatory process such as the US Army Regulatory Authority[1] or Nuclear Regulatory Commission (NRC) process for the entire lifecycle. At minimum, this includes an integrated and phased approach to compliance with planning and design, planning and construction, architecture and engineering, building construction, environmental, operating, safety and physical/cyber protection, deconstruction, and spent fuel management requirements. Reactor designers may propose one or more preferred approach(es) to regulatory and government affairs addressing at least the above set forth attributes inclusive of procedure, policy and process.

A successful prototype proposal solution provides a sound technological path coupled with an integrated solution for the regulatory, transactional, and environmental certainty; the outcome will make both parties eligible to enter into a sole-sourced, follow-on contract(s) or production agreement(s) for the continued purchase of electricity and decommissioning at the end of the operating life. 

Desired Solution Features

Desired solution features include the following attributes and capabilities:

  • Solutions should utilize fuel that is enriched to 20% or less U-235 that will be made available to meet the timeline.

  • Evidence that proposed fuel form can be provided within the proposed schedule.

  • Capable of producing enough electrical power to meet 100% of all critical loads, anticipated to preferably be within 3MW and 10MW of electrical power.Vendors that provide compelling solutions, outside the anticipated range may also be considered for further evaluation.

  • Capable of local control and dispatch and integrated to the greatest extent practicable into existing infrastructure, operations centers (if applicable), workflows, and operations and maintenance systems.  

  • Capable of startup/shutdown and monitoring operations both with and without commercial power availability (both black start and grid-connected start capability).

  • Capable of reactor plant operations with a commercial shore power connection, and alternative credited independent power source as a backup.

  • The microreactor should be operated only from the control room located within the Army installation (remote or wireless operation is not allowed). 
    • Remote maintenance and diagnostics capabilities that comply with relevant cyber security US Government standards, e.g., NIST 800-171 Rev. 2 for Federal Contractors, may be considered.
    • All operations, maintenance, and support staff to operate the reactor for the useful life of the electricity generation asset, anticipated to be 20 years.

  • The ANP should include passive safety features to the extent practical to ensure reactor key safety functions are satisfied under all conditions, states, and modes.

  • Radiation exposure at the ANPI site boundary should not exceed the limits provided in 10 CFR 20 during routine operations.
    • This assumes proposals will sufficiently account for relevant factors including sky shine, emissions from activated site materials, and surrounding buildings at various elevations around the site boundary.

  • Capability to provide power supply for a minimum of 20 years, including operations, maintenance, sustainment, and refueling activities refueling and maintenance activities as needed to meet electricity production and availability (in percentages) objectives.
    • There are no restrictions on the proposed strategy to achieve this desired feature i.e., refueling or ‘replaceable’ modules to maintain continuity of operations. The overall economic strategy by the Offeror will be evaluated and must include associated costs/risks with that strategy.

  • Non-core irradiated material should be removed or qualified for unrestricted release within 2 years upon completion or termination of the power production contract. This plan, along with associated finance structure, must be approved by the Army.

  • Irradiated core material should be removed from the site notionally within 5 years of completion or termination of the power production contract, or as otherwise agreed upon by the Army.

  • The available footprint for the ANPI site (including radiation boundaries) should not exceed 5 acres (protected area of less than 540-ft diameter).

Reasonable and appropriate safety, physical and cyber, and safeguards measures should be implemented. In addition to the above desired solution features, proposals must describe an approach satisfying the parameters below:

  • Business viability of proposal and organizational readiness of company to complete a complex nuclear design-build within the required timeline (initiate power production by the end of CY 2030).

  • Nuclear supply chain for nuclear grade equipment is clearly identified and credibly available to supply equipment to meet the notional timeline.

  • Equipment included in the design will be evaluated against the technology readiness level and manufacturing readiness level.

  • Regulatory engagement plan is identified and workable.

Vendors are encouraged to submit responses as single solutions, or as other business arrangements (i.e. teaming). Vendors may submit multiple solutions.

Vendors may be selected to provide solutions for additional installations across the federal government. Additionally, vendors who successfully meet the evaluation requirements of Phase I (as stated within the CSO), and who are invited to Phase II Pitches, may be requested to participate in further dialogue with the Government.

Innovative financing solutions are highly encouraged and shall be provided to the Government for consideration within the submitted ROM.

[1] 1 The U.S. Army’s regulatory authority is derived from section 91b of the Atomic Energy Act (42 U.S.C. § 2121(b)), as implemented pursuant to the Presidential Directive of 23 September 1961. To facilitate this prototyping effort, the Army initiated revisions to the Army’s primary regulatory document, Army Regulation 50-7, and a new Army guidance document, Army Pamphlet 50-7. The final regulation and pamphlet are expected to be published during the concept of design phase of the ANPI program. Relevant Army regulatory documents are found at:

Eligibility Requirements

Awarding Instrument

This Area of Interest solicitation will be awarded in accordance with the Commercial Solutions Opening (CSO) process detailed within HQ0845-20-S-C001 (DIU CSO), posted to in March 2020.

Follow-on Production

Companies are advised that any prototype Other Transaction (OT) agreement awarded in response to this Area of Interest may result in the award of a follow-on production OT agreement or contract without the use of further competitive procedures. The follow-on production OT agreement or contract will be available for use by one or more organizations in the Department of Defense and, as a result, the magnitude of the follow-on production OT agreement or contract could be significantly larger than that of the prototype OT. As such, any prototype OT will include the following statement relative to the potential for follow-on production:

"In accordance with 10 U.S.C. § 4022(f), and upon a determination that the prototype project, or portions thereof, for this transaction has been successfully completed, this competitively awarded prototype OT agreement may result in the award of a follow-on production OT agreement or contract without the use of competitive procedures.”

Awarding Process



1. Question: Does DIU have a strong opinion on teaming vs. individual bids for the Advanced Nuclear Power for Installations solicitation?

1. Answer: Vendors may submit partial solutions, by line of effort; or as a full/complete solution. Vendors may submit more than one solution in response to the AOI, but shall do so individually. Each solution will be evaluated on its own merit, in accordance with the evaluation criteria stated within Commercial Solutions Opening (CSO) HQ0845-20-S-C0001. 

2. Question: Would nuclear fusion microreactor approaches be considered for this solicitation? We are in the experimental stage of developing a nuclear fusion microreactor, the compactness of which would allow quicker design/build/test iteration to help get a fusion microreactor prototype by 2030.

2. Answer: The US Army seeks to prototype on-site micro-reactor nuclear power plant(s) to address its energy resilience needs through the Advanced Nuclear Power for Installations (ANPI) program. Vendors are encouraged to provide their unique and innovative solutions. Vendors are encouraged to review the Area Of Interest (AOI) for details.

3. Question: What does commercial shore power connection mean?

3. Answer: Commercial shore power refers to the provision of electrical power from the land-based commercial power grid other than the onsite nuclear power plant. Desired solution should plan to provide continuous/reliable power regardless of planned or unplanned power outages. means that if the reactor needs electricity to operate its systems, then iIt should be capable of connecting to commercial power provided by U.S electric companies servicing the Army base.

4. Question: What is the anticipated funding level for the first year/early phases of the program or milestones within the ANPI program?

4. Answer: The Government does not release actual nor anticipated funding estimates. Vendors who propose solutions in response to the AOI should base their estimates on commercial industry practices.

5. Question: What level of detail is expected in the Phase 1 proposals/responses regarding the financial aspect and Rough Order of Magnitude (ROM) estimate?

5. Answer: In accordance with the evaluation criteria stated within Commercial Solutions Opening (CSO) HQ0845-20-S-C0001, a Rough Order of Magnitude (ROMs) is NOT evaluated in Phase 1. Vendors whose solutions are selected for Phase 2, shall provide a ROM as part of their Pitches.

Before You Submit

What we recommend you include when you submit a solution brief.

When you submit to a DIU solicitation, we'll ask you to include a solution brief. Here's some guidance about what that entails.

Potential Follow-On Production Contract for Prototype Other Transaction Agreements

Companies are advised that any Prototype Other Transaction (OT) agreement awarded in response to this solicitation may result in the direct award of a follow-on production contract or agreement without the use of further competitive procedures. Follow-on production activities will result from successful prototype completion.

The follow-on production contract or agreement will be available for use by one or more organizations within the Department of Defense. As a result, the magnitude of the follow-on production contract or agreement could be significantly larger than that of the Prototype OT agreement. All Prototype OT agreements will include the following statement relative to the potential for follow-on production: “In accordance with 10 U.S.C. § 4022(f), and upon a determination that the prototype project for this transaction has successfully been completed, this competitively awarded Prototype OT agreement may result in the award of a follow-on production contract or transaction without the use of competitive procedures.”

2023 Other Transaction Guide

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Solution Brief

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Any agreement awarded off of this solicitation will include language requiring your company to confirm compliance with Section 889 of the John S. McCain National Defense Authorization Act for Fiscal Year 2019 (Pub. L. 115-232). If you are not able to comply with the law, the Government may not be able to award the agreement.

We Work With You

If we think there’s a good match between your solution and our DoD partners, we’ll invite you to provide us with a full proposal — this is the beginning of negotiating all the terms and conditions of a proposed prototype contract.

After a successful prototype, the relationship can continue and even grow, as your company and any interested DoD entity can easily enter into follow-on contracts.

Our Process

  1. We solicit commercial solutions that address current needs of our DoD partners.

  2. You send us a short brief about your solution.

  3. We’ll get back to you within 30 days if we’re interested in learning more through a pitch. If we're not interested, we'll strive to let you know ASAP.