SAN BERNARDINO, Calif. – September 14, 2025 – The first hydrogen-powered passenger train in the U.S. made its debut in the Inland Empire Saturday and is now officially in service.
ZEMU – which stands for Zero Emission Multiple Unit – is the nation’s first federally compliant self-powered, zero-emission passenger train and is based in San Bernardino County.
On Saturday, residents were able to ride for free between San Bernardino and Redlands.
The train uses hybrid hydrogen and battery technology to propel the train and power onboard electrical systems. Water vapor is the only emission generated from the propulsion system, making this a clean transit alternative.
>> In Other News: Clean Energy Breaks Ground On Three Renewable Natural Gas Dairy Projects With Maas Energy Works
"ZEMU is proof of our commitment to improving regional air quality, embracing innovation, and expanding clean-air transit options throughout the county," said Rick Denison, San Bernardino County Transportation Authority Board President. "I look forward to riding ZEMU and am excited for residents and visitors to experience this train firsthand."
The ZEMU train is also easily recognized by its blue and white water-vapor design.
ZEMU was built by Stadler, a Swiss train manufacturer, and arrived in San Bernardino in June 2024.
Subscribe to the newsletter
Daily decarbonization data and news delivered to your inbox
Follow the money flow of climate, technology, and energy investments to uncover new opportunities and jobs.
Latest issues
-
What 10x Growth Means for Hydrogen’s Future
Inside This Issue 💧 Blue Hydrogen Just Won 2025: 10x More Than Green ✈️ Houston American Energy Advances Development of Sustainable Aviation Fuel ⛏️ Max Power Expands Natural Hydrogen Discovery Po...
-
Google's Power Play: First CCS Deal Reshapes Energy
Inside This Issue ⚡ Google's Power Play: First CCS Deal Reshapes Energy 🌎 True North Carbon's Tamarack Project, Canada's Largest Single-Technology Direct Air Capture Deployment, Achieves First Cap...
-
The $27/ton Question: What Makes a Carbon Removal Credit Worth 3x More?
Inside This Issue 💰 The $27/ton Question: What Makes a Carbon Removal Credit Worth 3x More? 🛢️ EPA Issues Three Class VI Permits to ExxonMobil in Jefferson County, Texas 🌍 UN Endorses First Articl...
Company Announcements
-
IRENA Chief Expects Sustainable Biofuels To Feature As Key COP30 Theme
International Renewable Energy Agency (IRENA) Director-General Francesco La Camera speaks during the opening session of the 12th IEA IEF OPEC Symposium on Energy Outlooks in Riyadh, Saudi Arabia, F...
-
Tuesday, October 28, 2025 7:10 AM PDT Vancouver, British Columbia -- (Newsfile Corp. - October 28, 2025) -- Element One Hydrogen and Critical Minerals Corp. ( CSE: EONE) ("Element One" or the "Com...
-
Hyundai Translead To Lead Distribution Of XCIENT Fuel Cell Trucks In North America
SAN DIEGO -- (Business Wire) -- Hyundai Translead will serve as the official distributor of Hyundai Motor Company’s XCIENT Fuel Cell Trucks in North America. This marks a significant step forward i...
-
Integration of Saskatchewan’s Subsurface Data and AI-Driven Analytics Positions MAX Power Mining Corp at the Forefront of Defining the Future of Natural Hydrogen Exploration & Development Octo...