RAPID ENCAPSULATION OF PIPELINES AVOIDING INTENSIVE REPLACEMENT (REPAIR) | DE FOA 0002289

REPAIR (ARPA-E) Grant Opportunity FAQs

1) What is the REPAIR funding opportunity?

REPAIR stands for Rapid Encapsulation of Pipelines Avoiding Intensive Replacement. It is a Department of Energy ARPA-E funding announcement focused on transforming how aging natural gas distribution pipelines are rehabilitated, with an emphasis on internal "pipe-within-a-pipe" solutions that reduce cost and disruption compared to excavation and full replacement.

2) Who is offering this grant?

The opportunity is offered by the U.S. Department of Energy (DOE) through ARPA-E (Advanced Research Projects Agency-Energy).

3) What is ARPA-E's role and mission in this context?

ARPA-E exists to advance high-risk, high-reward energy technologies that are still too early for most private investment. The broader goals described include strengthening U.S. economic and energy security, cutting energy-related emissions (including greenhouse gases), improving energy efficiency across sectors, and maintaining U.S. technological leadership.

4) What infrastructure problem is REPAIR trying to solve?

REPAIR targets the high cost and disruption of rehabilitating aging natural gas distribution pipelines, especially older cast iron, wrought iron, and bare steel pipes that are prone to leaks and failures.

5) Why is the current standard approach considered expensive?

The standard approach is excavation and full replacement. The announcement notes costs can reach as much as $10 million per mile when factoring in digging in dense urban environments, traffic disruption, labor, permitting, and restoration of roads and sidewalks.

6) What kind of technical solution is REPAIR looking for?

The program is focused on technologies that can automatically build a brand-new pipe inside the existing pipe. The aim is an automated internal encapsulation or lining process that rehabilitates the pipeline from within.

7) What does "pipe-within-a-pipe" mean in this FOA?

In this program, "pipe-within-a-pipe" refers to creating a structurally independent new internal pipe (a liner) inside the existing host pipe so that long-term safe operation does not depend on the integrity of the original outer pipe.

8) Is a temporary leak-patching liner sufficient for REPAIR?

No. The intent is that the liner must act as a durable, stand-alone pressure boundary and continue performing even if the original host pipe continues to corrode or crack over time.

9) What service life is the internal liner expected to achieve?

The program intent calls for the new internal pipe to deliver a minimum service life of 50 years while maintaining material and mechanical properties suitable for real-world gas distribution service over that period.

10) How does REPAIR address utility operations and regulatory needs?

To be considered successful under the program's intent, the solution must satisfy utility operational needs and regulatory requirements, including long-term durability and performance as an independent pressure boundary.

11) What is meant by "smart functionality" in this FOA?

The FOA highlights interest in embedded "smart functionality" within structural coating materials. This suggests solutions that can provide data about the liner's condition or surrounding environment, such as indicators related to damage, corrosion precursors, or other changes that signal developing problems.

12) Does the program include inspection and integrity assessment tools?

Yes. In addition to liner/encapsulation approaches, REPAIR is looking for new integrity and inspection tools that can assess pipeline condition before, during, and after rehabilitation. These tools are meant to support confidence in performance and help utilities verify compliance and safety.

13) What is the role of 3D mapping in REPAIR?

A key systems-level deliverable is improved underground situational awareness through 3D mapping. REPAIR envisions 3D maps that fuse geospatial information about the gas pipe and nearby underground infrastructure with operational integrity data, leak detection information, and coating/liner deposition data.

14) Why is improved underground situational awareness important?

The FOA notes that in urban pipeline work, utilities often have incomplete knowledge of exact pipe placement, nearby assets, and buried segment condition. Better fused mapping is intended to reduce surprises, improve planning, and enable more automated and reliable rehabilitation workflows.

15) What cost target is REPAIR aiming to achieve?

REPAIR sets an aggressive target of reducing rehabilitation costs to roughly $500,000 to $1,000,000 per mile. The target explicitly includes costs associated with disrupting gas service during the work.

16) Does the cost target include customer service disruption costs?

Yes. The FOA explicitly states the per-mile cost target includes the costs associated with disrupting gas service during rehabilitation.

17) What would success potentially change for utilities and communities?

If achieved, the program could substantially reduce the cost and disruption of modernizing aging gas networks and may reduce methane leakage and associated emissions by enabling more scalable rehabilitation.

18) What type of funding category is this opportunity listed under?

The opportunity is listed as discretionary funding in the science and technology / R&D category.

19) What is the CFDA number associated with this opportunity?

The listing includes CFDA 81.135.

20) Who is eligible to apply?

Eligibility is described as unrestricted, meaning it is open to any type of entity, subject to any FOA-specific clarifications.

21) What is the legal authority for this FOA?

The FOA is issued under ARPA-E's statutory authority, cited as 42 U.S.C. 16538.

22) What federal rules govern award administration?

The announcement states the program is administered under federal assistance rules in 2 CFR Part 200 (as amended by 2 CFR Part 910).

23) What kind of award instrument should applicants expect?

Awards are structured as cooperative agreements or similar instruments where the government may have substantial involvement during the project.

24) How many awards did ARPA-E anticipate making?

ARPA-E anticipated making around 17 awards.

25) What is the maximum funding amount per project?

The award ceiling is $10,000,000 per project.

26) What is the Funding Opportunity Number for REPAIR?

The funding opportunity number is DE-FOA-0002289.

27) When was this FOA created?

The FOA was created on February 18, 2020.

28) When were full applications due?

Full applications were due April 20, 2020.

29) Was there any submission timing guidance?

Yes. Applicants were encouraged to submit at least 48 hours before the deadline to reduce the risk of last-minute submission issues.

30) Is REPAIR focused only on materials, or also on deployment and operations?

Based on the stated cost-and-disruption targets and the emphasis on mapping, inspection, and automation, REPAIR is framed as a full cost-of-deployment challenge, not only a materials or robotics effort.