On February 18, 2020, the Department of Energy (DOE) announced up to $38.5 million in funding for a new Advanced Research Projects Agency-Energy (ARPA-E) program, Rapid Encapsulation of Pipelines Avoiding Intensive Replacement (REPAIR) which will address aging pipeline infrastructure.[1] [2] Pipelines were built with cast iron and wrought iron when gas utilities began operation in 1800s. In the 1930s, bare steel pipes began to replace these outdated pipelines. Although legacy cast iron and bare steel pipes make up only 3% of the utility pipes in use, they account for a disproportionate number of leaks and failures. The REPAIR program will solve this issue by sponsoring new technologies to rehabilitate old natural gas distribution pipes by creating a new pipe inside the old pipe. Effective technologies will meet regulatory requirements, have a minimum life of 50 years, and have sufficient material properties to operate throughout its service life. The technologies in REPAIR will work towards a 10 to 20-times reduction in cost per mile. Current pipe excavation and replacement costs range up to $10 million per mile.

[1] https://www.energy.gov/articles/department-energy-announces-385-million-develop-technology-rehabilitate-natural-gas

[2] https://arpa-e.energy.gov/?q=arpa-e-programs/repair