
Life Cycle Analyses

Powertrain Technologies
CARB proposes to amend MY 2024 low NOx standard
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Given the lack of MY 2024 compliant new engine introductions, California has proposed an amendment to its low NOx omnibus, providing more flexibility for legacy engines.
CARB deal with OEM on low NOx, electrification – and H2 ICE ?
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California and Truck & Engine Manufacturers have reached a deal on low NOx and electrification targets in the state. This paves the way for more regulatory certainty but the challenges ahead are not diminished.
Technology Deepdive : Opposed piston engines
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Opposed piston engines are being developed as a tool to reduce CO2 and NOx emissions from heavy-duty trucks. Here’s a deeper look into this technology and recent test results.
U.S. EPA Phase 3 Greenhouse Gas Proposal for Heavy-Duty Vehicles
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A downloadable summary of the U.S. EPA announced the Phase 3 GHG proposal for heavy-duty vehicles. From 2027 to 2032, 45% reduction in CO2 emissions for light vocational vehicles and 25% for Class 8 sleeper cabs. Over half of light vocational and a quarter of sleeper cabs expected to be ZEVs by 2032.
When in doubt … ask ChatGPT
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Watch this fun video for a take by ChatGPT on the wavering stance of OEMs on BEVs and ICEs
Revised CO2 standards in Europe for heavy-duty vehicles
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Europe has proposed an ambitious revision to its heavy-duty vehicle CO2 emission standards. Here’s a summary of some of the revised and new elements
Summary of EPA MY2027 heavy-duty engine standards
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The US EPA has finalized its standards for heavy duty engines starting model years 2027 and beyond. Here is a summary of the standards and a high-level comparison with California’s low NOx rule published earlier.
On hydrogen requirements for long haul trucking in the US
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We show that to convert 25% of the long-haul truck fleet in the US to hydrogen fuel cell will require doubling of the total H2 demand and doubling of the renewable electricity generation in the US today.

Heavy-Duty
CARB and EPA Low NOx Engines and Trucks Announced
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Truck manufacturers are offering improved versions that meet California’s MY 2024 Low NOx standards. Here’s a comparison of the underlying after-treatment technologies.
Hybridization of heavy-duty vehicles for meeting European CO2 standards
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A summary of a new study highlighting the role hybrids could play in meeting upcoming CO2 standards in Europe, and the implications for electric vehicle share.
Dinex outlines Technologies for Low NOx Non-Road engines
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A potential technology pathway for meeting upcoming California low NOx standards for off-highway machinery was shown by Dinex at a recent conference.
Total Cost of Transportation Analysis for a Heavy-Duty Fleet
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A new study shows that switching to a Class 8 truck can more than double the total cost of transportation. Here’s a summary.
ACT 2024 in pictures
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The ACT Expo, 2024 covered all aspects of the latest technologies for commercial vehicles and provided a unique forum to discuss the “reality” on the ground for the energy transition. Here is a summary in pictures.
How much biofuels can we make, really ?
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Lowering the carbon footprint of existing vehicles will require switching to low carbon fuels. The immediate question this raises, is “how much low carbon fuel can we make?” and, “doesn’t using biomass for fuels affect the food production?”
Summary of EV related U.S. Tariffs on Chinese Imports
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The Biden Administration has announced significant new tariffs on a range of Chinese-made electric vehicles and related strategic components. Here is a summary.
SAE WCX 2024 – Year in Review
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The SAE World Congress was held in Detroit and covered a broad range of topics pertinent to transport decarbonization. Here’s a link to download presentations on emissions and sustainability.

Emissions Control Technologies

Advanced Fuels & Lubricants
China Stage 4 Fuel Consumption Standard for Light Commercial Vehicles
A summary of Chinese Stage 4 fuel consumption standards for light commercial vehicles.
Mobility in India – excerpts of recent headlines
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A summary of reports from a couple of leading newspapers in India, taken during end of Sept to early October, 2024 points to the rapidly changing mobility and energy landscape in India.
Biofuels summit in Washington DC highlights role of ethanol in transport decarbonization
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The biofuels summit hosted by Growth Energy at Washington DC highlighted the role that ethanol continues to play in decarbonizing the transport sector.
CARB Proposed Modifications to the Low Carbon Fuel Standard
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On August 12th, 2024, the California Air Resources Board (CARB) posted the latest proposed amendments to the Low Carbon Fuel Standard (LCFS). These confirm some of the previous amendments proposed earlier this year, while introducing new ones. Here is a recap of some of the important proposed changes.
Guest Article – Emissions Reduction with Alternative Fuels
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The journey of the IC engine can be summed up in two words: continuous improvement. Decades of engine research coupled with the relatively recent advent of renewable fuels is accelerating the gains in emissions abatement. Check out this webinar to learn more.
CARB and EPA Low NOx Engines and Trucks Announced
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Truck manufacturers are offering improved versions that meet California’s MY 2024 Low NOx standards. Here’s a comparison of the underlying after-treatment technologies.
Direct manufacturing cost of BEV vs ICE
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A summary of a study comparing the direct manufacturing costs of the VW Tiguan and ID4
Hybridization of heavy-duty vehicles for meeting European CO2 standards
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A summary of a new study highlighting the role hybrids could play in meeting upcoming CO2 standards in Europe, and the implications for electric vehicle share.