# Naval Reactors Development

**Agency:** Energy  
**Account:** Defense (050)  
**Source document:** Energy Programs · p. 17  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/budget/energy/naval-reactors-development  

> **Trust:** parsed from the agency Congressional Justification. Approximate, **not summable**, verify at the cited page.

## Funding ($M)

| Fiscal year | Basis | Amount |
| --- | --- | --- |
| FY2025 | enacted | 835.8 |
| FY2026 | enacted | 864.6 |

## Energy discretionary budget authority (OMB PBDB — authoritative)

FY2027 $36.30B, FY2026 $58.20B. This is the agency total, not a sum of the parsed lines.


## What this funds

Naval Reactors Development resources fund work that ensures the current and future fleet is the most advanced, well-maintained, and capable nuclear fleet in the world. This funding supports unique technologies used in naval reactors that are crucial to delivering superior navy fleet operations and dominance in the maritime domain to counter the increasing threats from our adversaries. These efforts include: 1. Supporting naval operations while ensuring reactor safety by providing technical support to the fleet, engineering solutions to emergent reactor plant issues, enabling equipment replacement and maintenance, and tracking reactor performance over time. 2. Validate design assumptions made for operating ships to reduce required conservatism allowing 3. Developing and enhancing the fundamental methods, modeling, and materials used in reactor cores and plants, which reduce lifecycle costs and improves performance and reactor safety. 4. Designing and maintaining the major reactor plant components and plant systems required for 5. Providing funding for the operation of the Advanced Test Reactor (ATR) to DOE Office of Nuclear Energy and performing irradiation testing to support the operating fleet, evaluate new material systems, and develop new core designs to maintain the U.S. advantage over near-peer rivals. 6. Designing and procuring capital equipment in support of the work abo


**Where it sits:** Civilian / Non-Defense › Energy › Energy Programs › Defense (050) › Naval Reactors


*HitchAI is an independent intelligence service, not affiliated with the U.S. government. Civilian line dollars are parsed from agency Congressional Justifications and are approximate.*