Skip to Content
Streetsblog California home
Streetsblog California home
Log In
Electric Rail

Don’t Believe the Hydrogen Train Hype

Calling hydrogen-powered trains "zero emission" is misleading at best - and even if they were, they lost the race to be "first" a long time ago

NOT

On July 14, LAist published an article claiming that the first zero-emission train in the U.S. has arrived in San Bernardino. The new train is a hybrid (hydrogen power and battery) multiple unit, for Arrow line service. Similar headlines had been used in other outlets over the last few days as well.

LAist claims that this hydrogen train is "the first zero-emission train in the U.S."?

But, as Marc Vucevich of Streets for All wrote in response, the claim is blatantly false.

"Zero-emission trains have been around for over 100 years in the U.S.," he writes. Overhead wire electric trains used to ply the entire Bay Area, from San Francisco to Sacramento and beyond, and Los Angeles' famous Red Cars were electric. SF's Muni uses electricity to power its light rail and many buses as well. Los Angeles' Metro subway and light rail are also powered by electricity. Sacramento's light rail runs on electricity.

SF Muni electric light rail. Image: Siemens

Moreover, Caltrain in the Bay Area is transforming its commuter rail system into a true zero-emission, overhead wire train network. Caltrain is currently testing its essentially completed electric system, and expects to launch faster, greener, more efficient service in September.

Both California High-Speed Rail and the Brightline high-speed rail from Las Vegas will be electric.

This 1939 map shows the truly zero emission rail network that Northern California used to have. Sad to say it is now lost.

Overhead catenary electric wire is a widely used technology to power trains throughout the world, ubiquitous in Europe and Asia.

It's not as if LAist is not aware of Southern California's current and past zero emission trains. The site has featured plenty of excellent coverage of Metro (electric) rail and historic (electric) So Cal streetcars.

2016 LAist coverage of two zero emission train systems that preceded the hyped latest "first in the U.S." zero-emission train

If it's a contest to be the first in the U.S., then San Bernardino's supposed "zero-emission" train lost that race a long time ago.

But even worse: calling hydrogen-powered trains "zero emission" is misleading at best. Hydrogen is cleaner than current diesel engines, but it is a relatively untested technology that is not as efficient as overhead wire electric power. And it relies on fossil fuels - 98 percent of hydrogen is made from fossil fuels with no CO2 emissions control.

LAist and the other outlets that put SBCTA's press release on blast did not mention the polluting sourcing of the hydrogen, and did not acknowledge that hydrogen is promoted by the fossil fuel industry.

There is also the problem with San Bernardino's framing of the project, says Vucevich. "For some time SBCTA has touted this project as innovative rather than what's actually happening: they are trying out an untested technology that every other nation with a developed rail system has serious concerns about and has declined to pursue. This is risky, and a potential waste of taxpayer money - not 'pioneering' or 'innovative' at all."

It's time to stop repeating the false notion that hydrogen power is "zero emission."

Don't believe the hydrogen train hype, distracted boyfriend!

It's also time to step up efforts to implement true zero emission electric rail.

Streets for All, Californians for Electric Rail, and others are working to pass Assemblymember Alex Lee's (D - San Jose) A.B. 2503, which would exempt rail electrification from California environmental review processes. For more background on the push for true zero emission rail, listen to Talking Headway's recent interview with Adrianna Rizzo of Californians for Electric Rail.

Stay in touch

Sign up for our free newsletter

More from Streetsblog California

First OC Streetcar Arrives

The $649 million 4.1-mile OC Streetcar light rail line is 92 percent complete, and now anticipated to open in spring 2026

May 8, 2025

Thursday’s Headlines

California and Trump continue to spar and more news from up and down the state.

May 8, 2025

Talking Headways Podcast: ‘Normal’ is Not Correct, Someone Died Here

After a crash, the debris is quickly cleaned up and everyone moves on (usually too quickly). But these two experts are asking us to all slow down.

May 8, 2025

Metro Names Bill Scott as Chief of Police

Chief Scott and Metro leadership emphasized that keeping Metro transit safe would require a multi-faceted approach that included the deployment of officers as well as collaboration with the community, ambassadors, and service providers. "Sometimes enforcement is the answer," Scott said. "Sometimes it's not."

May 7, 2025

State Supreme Court Reinforces Rules that Cities Must Maintain Safe Roads

When Ty Whitehead was injured in a crash caused by a pothole in Oakland, it sparked an eight-year legal battle that is still being waged.

May 7, 2025
See all posts