With a whole lot of buzz round battery expertise nowadays, the College of California, Riverside is shaking issues up a bit. They’ve simply kicked off real-world emissions testing on a hydrogen combustion engine van imported from France, and it’s not only for present—this can be a hands-on experiment occurring proper within the coronary heart of California’s Inland Empire, the place air high quality points are a giant deal, and each little bit of NOx counts.
What’s the large deal, you ask? Properly, hydrogen inner combustion engines (ICEs) would possibly simply be the answer to slicing down tailpipe CO₂ emissions with out forcing fleet operators into a complete fuel-cell or battery overhaul. The oldsters at CE-CERT are digging into whether or not present aftertreatment options can handle nitrogen oxides successfully whereas maintaining the prices in test for individuals who already use piston engines.
CE-CERT is the biggest heart inside the College of California system centered on sustainable transportation and air high quality analysis. Their labs are designed to simulate real-world driving circumstances and emissions eventualities, making Riverside a testing floor for the newest powertrains. This new hydrogen van joins different thrilling tasks that embrace retrofitted engines, hybrid fuel-cell prototypes, and high-tech aftertreatment setups.
Simply earlier this month, the workforce at CE-CERT began operating endurance and emissions trials on a cargo van specifically modified to run on compressed hydrogen. This undertaking builds on a partnership with the College of Michigan, which formally kicked off in 2025 underneath the banner of the Hydrogen Engine Alliance of North America. Collectively, they’re racing in opposition to time to show that hydrogen ICE can function a sensible bridge to zero-emission transportation with out leaving conventional combustion engines behind.
Whereas the specifics concerning the van’s make and its French provider haven’t been disclosed, this transfer highlights the worldwide curiosity in hydrogen combustion analysis, particularly as many business tasks are nonetheless centered on gas cells.
Key Findings to Date: Though they’re nonetheless analyzing the info, early dyno assessments resonate with earlier findings from UCR. These research confirmed that through the use of platinum and Y-zeolite catalysts, they achieved over 90% NOx conversion at decrease exhaust temperatures. Now, they’ll see if the van can ship on that promise whereas working underneath real-world circumstances like stop-and-go site visitors and freeway speeds.
What It Means: If the CE-CERT van can preserve excessive NOx conversion charges with out struggling effectivity drops, we would see an business shift. Fleets and Authentic Gear Producers (OEMs) may probably improve their present ICE platforms to run on hydrogen as a substitute of getting to deal with the pricey studying curve and infrastructure transformation that comes with gas cells. But when the conversion charges slip throughout real-world operation, hydrogen combustion would possibly simply stay a distinct segment possibility, overshadowed by batteries and gas cells.
For fleets that function on tight margins—like package deal supply companies, college buses, and municipal autos—having dependable gas prices and minimal downtime is essential. If they will retrofit present techniques and not using a hitch, it may actually velocity up hydrogen adoption, supplied the numbers add up. Operators are doubtless to concentrate to not simply tank-to-wheel effectivity, but additionally elements like upkeep schedules, catalyst longevity, and gas contracts.
Technical Dive: Tackling NOx in Hydrogen ICE
Hydrogen’s almost zero carbon footprint on the tailpipe is simply the tip of the iceberg. It burns hotter than gasoline, which implies NOx emissions can exceed these of diesel if not fastidiously managed. Earlier work at UCR used a two-stage catalytic system that pairs a platinum oxidation catalyst with a Y-zeolite SCR substrate. This zeolite helps handle water within the exhaust, boosting ammonia formation for SCR reactions, and so they achieved spectacular charges of over 90% conversion underneath regular circumstances.
The U.S. Division of Vitality goals for NOx emissions from hydrogen ICEs to remain beneath 0.2 g/kWh. To satisfy these requirements, CE-CERT’s labs will put this van by way of its paces, simulating city stop-and-go driving and operating cold-start and hot-restart assessments to imitate the emissions spikes that always occur in metropolis site visitors. Plus, they’ll topic the catalyst to thermal getting old to make sure it’s sturdy sufficient for prolonged use.
Strategic Angle: Economics and Infrastructure
The success of hydrogen ICEs boils right down to whole value of possession (TCO). Gasoline-cell autos ship excessive effectivity, but it surely comes at a steep value, because of the costly platinum metals and tailor-made techniques they require. Battery electrical autos shine on city routes however face hurdles like vary and prolonged charging occasions in terms of long-haul transport. Hydrogen ICE, then again, may leverage present engines and manufacturing processes, probably slicing upfront bills considerably.
Take long-haul trucking, as an illustration—these routes may actually profit from hydrogen if the refueling networks can join key places like ports and distribution facilities. In the meantime, shorter routes would possibly nonetheless lean towards electrical options. It’s all about determining what works greatest in numerous eventualities. CE-CERT’s van will monitor information on refueling time, vary per fill, and vitality density—these are all essential parts that may form the TCO panorama.
Coverage and Regulatory Panorama
California’s regulators are aiming for a carbon-neutral transport sector by mid-century, pushing guidelines just like the Superior Clear Fleets and Superior Clear Vehicles, which mandate zero-emission applied sciences. Nevertheless, these rules at the moment lean extra in direction of battery-electric and fuel-cell autos. The Hydrogen Engine Alliance of North America is advocating for a spot for hydrogen ICEs, highlighting their decrease carbon profile, so long as they will meet strict NOx limits.
On a federal stage, the Infrastructure Funding and Jobs Act has put aside funds for hydrogen hubs, and California’s Low-Carbon Gasoline Normal may probably help hydrogen ICE in particular instances, however the business must show constant efficiency first. That’s the place CE-CERT’s real-world trials come into play, happening in a area the place tailpipe emissions immediately influence air high quality.
Globally, different areas—from Europe to Asia—are additionally testing hydrogen ICEs, however stable information remains to be skinny on the bottom. The findings from CE-CERT will enrich an rising physique of proof that informs emissions requirements worldwide.
The Hydrogen Engine Alliance of North America isn’t only a identify; it’s a collaborative effort that brings collectively researchers, producers, and policymakers to share information, align requirements, and talk with the general public. The assessments with CE-CERT’s van will assist set tips for the following wave of hydrogen ICE certification and coaching packages.
My Take
I can’t assist however be a bit skeptical that hydrogen ICEs are going to take over from EVs or gas cells throughout the board. Positive, the chemistry challenges may be tackled, however the economics and infrastructure developments are at all times racing alongside different applied sciences. If CE-CERT proves that NOx emissions may be managed with out mountain climbing prices or decreasing effectivity, hydrogen ICE may discover its area of interest in heavy-duty and legacy fleets. However have in mind: scaling up hydrogen infrastructure requires some huge cash and coordination.
From a market perspective, CE-CERT’s testing sends a transparent sign that established engine makers shouldn’t dismiss hydrogen ICE simply but. Nevertheless, the momentum round electrification is palpable. OEMs pondering investments will weigh this van’s emissions statistics in opposition to battery roadmaps and fuel-cell challenges. Solely when hydrogen ICE can provide aggressive TCO and compliance will it transfer past being only a curiosity within the business.
And don’t overlook: each profitable check paves the best way for brand new competitors—engine tuners, catalyst builders, and gas suppliers will all be looking out for a profitable outcome.
What’s Subsequent: Hold a watch out for detailed emissions and effectivity information from CE-CERT later this yr, as it’s going to play a vital position in broader business discussions. Issues will warmth up when UCR and its Michigan companions host workshops on the alliance’s annual summit. Till then, the outcomes from the van’s assessments would be the greatest indicator of whether or not hydrogen combustion can increase market curiosity or stall on the sidelines.
