Conrad estimated that the whole project will cost around $15 million, about 70% of which would come from federal funding under the 2021 bipartisan infrastructure law and other grants. It’s unclear, though, whether the Trump administration will renege on those commitments, even those which have already been formally obligated under contract.
“ARCH2 receives funding for this project through a contract issued through the U.S. Department of Energy’s Office of Clean Energy Demonstrations,” Moore said. “We have received no information outlining any modifications to that contract and therefore will continue moving forward on this project as planned.”
If the project can be completed, it will double SARTA’s supply of hydrogen, lower costs and emissions, and improve the transit system’s resiliency, Conrad said, noting that the agency has experienced occasional fuel delivery problems. Plus, domestic hydrogen production can support U.S. energy independence goals, he said.
A desire to switch to cleaner fuels and the costs per mile compared with diesel buses convinced SARTA to start buying fuel-cell buses in 2014. Today, it has 17 large buses and 5 smaller paratransit vehicles that run on fuel cells, which split hydrogen into protons and electrons and send them along separate paths. The electrons provide an electric current, while the protons wind up combining with oxygen to make water.
California has had fuel-cell buses on the road for more than two decades, and other places that have embraced the vehicles in recent years include Philadelphia’s Southeastern Pennsylvania Transportation Authority and Maryland’s Montgomery County.
Sean O’Leary, a senior researcher for the Ohio River Valley Institute, said the planned project by SARTA and Enbridge would cut greenhouse gas emissions compared with current practices.
“Green hydrogen is … a lot better than gray,” O’Leary said. However, he’s skeptical whether fuel-cell buses are the vehicles he would choose today for transit systems to reduce emissions. “I would personally rather see them go to electric buses or even biodiesel, both of which would reduce emissions more and cost a … lot less.”
Conrad said SARTA would have liked to have started out using green hydrogen, but it wasn’t available in the marketplace a decade ago. Now that the technology has advanced, he thinks it’s time to make the switch to a cleaner source of hydrogen.
“Sometimes an industry just needs time to evolve. And I think that’s what we’re starting to see now,” Conrad said.
If all proceeds well, SARTA anticipates on-site hydrogen production could start as soon as 2028.
