# Mechanisms for Amplification of fusion Reaction Rates in Solids (MARRS)

Source: https://welltoldgrants.com/grants/hr001126s0007-mechanisms-for-amplification-of-fusion-reaction-rates-in/  
Official notice: https://www.grants.gov/search-results-detail/361079

> DARPA - Defense Sciences Office offered grants to the applicants described in the notice. Applications closed on March 12, 2026.

| Field | Value |
|---|---|
| Opportunity number | HR001126S0007 |
| Agency | DARPA - Defense Sciences Office |
| Status | Forecast |
| Deadline | March 12, 2026 |
| Award ceiling | not stated |
| Award floor | not stated |
| Expected awards | not stated |
| Total funding | not stated |
| Cost sharing | not required |
| Assistance Listings | 12.910 |

## Who can apply

- Others (see text field entitled "Additional Information on Eligibility" for clarification)

All responsible sources capable of satisfying the Government's needs may submit a proposal that shall be considered by DARPA. See the Eligibility Information section of the BAA for more information.

## What the grant funds

The Defense Advanced Research Projects Agency (DARPA) is soliciting innovative proposals in exploring and implementing mechanisms that amplify and increase the rates of nuclear fusion reactions in solids at and near room temperature. Proposed research should investigate innovative approaches that enable revolutionary advances in science, devices, or systems. Specifically excluded is research primarily resulting in evolutionary improvements to the existing state of practice.

## Questions people ask

### Is HR001126S0007 still open?

No. It closed on March 12, 2026. A newer notice is open: DARPARA2701, closes January 13, 2027 (67 days left).

### Who can apply for Mechanisms for Amplification of fusion Reaction Rates in Solids (MARRS)?

DARPA - Defense Sciences Office accepted applications from the applicants described in the notice. The notice adds further conditions, so read its eligibility section.

### What is the deadline for Mechanisms for Amplification of fusion Reaction Rates in Solids (MARRS)?

Closed March 12, 2026. Applications are no longer accepted; the program's newer notices are on this page when there are any.

### Who has won Research and Technology Development grants before?

The largest recipients over five fiscal years were University of Southern California, Clemson University, Massachusetts Institute of Technology. The program made 739 awards worth $1.5 billion in that time.