
Life Cycle Analyses

Powertrain Technologies
H2 ICE truck cost of ownership vs diesel and fuel cell vehicles
Here’s an attempt at deconvoluting the cost of ownership of H2-ICE and a comparison with diesel and fuel cell vehicles.
Electric and hybrid penetration by 2030 based on new CO2 targets
The EU has published the “Fit for 55” proposal which will require 55% reduction in tailpipe CO2 by the end of the decade. The Biden administration will also revise the SAFE standards and has announced a 50% electrification target by 2030 (including plug-in hybrids). Here is a look at the implications for powertrain scenarios based on the CO2 targets alone.
SuperTruck II Update : Notes from the 2021 DOE Annual Merit Review
As we enter into the final lap of the SuperTruck 2 program, all teams are confident of meeting the 55% BTE and doubling-of-freight-efficiency targets. Here are the technical solutions being pursued.
SuperTurbo
SuperTurbo with Turbine Bypass for Cold Start Aftertreatment Heating Upcoming regulations such as California’s Low NOx Omnibus and Euro VII

Heavy-Duty
Summary of Oct 2023 CARB workshop for Tier 5 non-road standards
California is looking to reduce NOx emissions from non-road engines by 90% and enforce particulate filters on all engines. Here is a summary of the latest workshop to get stakeholder feedback on Tier 5 standards.
Summary of 2nd Life-Cycle Analysis for Transportation Symposium (LCATS)
Here is a summary of the second Life-Cycle Analysis for Transportation Symposium (LCATS) held on November 16–17, 2023, in San Antonio.
Notes from the 2023 Sustainable Fleet Technology Conference
Notes from the 2023 Sustainable Fleet Technology Conference covering a wide range of practical issues for fleet decarbonization
CARB proposes to amend MY 2024 low NOx standard
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 ?
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
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
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.
What’s in a tire – you may be surprised
Tire manufacturers are developing the next generation tires for light- and heavy-duty vehicles to address the new performance and sustainability needs of electrified fleets.

Emissions Control Technologies

Advanced Fuels & Lubricants
US EPA MY 2027-2032 Light-Duty CO2 Standards
The EPA final rule will require a fleet averaged 50% reduction in CO2 emissions for light-duty vehicles, over MY 2027 – 2032.
Cummins latest 15L engine capable of meeting MY2027 EPA regulations
Cummins has announced the next generation X15 diesel engine with improved performance and meeting the MY 2027 EPA/CARB Low NOx regulations.
TMC 2024 in Pictures
A visual summary of the TMC Annual Meeting and Transportation Technology Exhibition, held in New Orleans, March 2024.
True total cost of ownership still a decade away
New study analyzes the cost of transition to electric vehicles in California, including socio-economic factors. The burden will shift to lower income groups in later years.
Summary of Euro 7 Near-Final Regulation
A brief summary of the near-final Euro 7 regulations for light- and heavy-duty vehicles.
Summary of 2024 SAE Government Industry
A summary of select portions of the SAE Government Industry meeting, held in Washington DC, which highlighted the growing concerns of the industry with government mandates and preparedness for tackling the infrastructure barriers and low consumer / fleet acceptance.
On the carbon intensity of ethanol
Recent studies have critically assessed the carbon intensity of ethanol and show that while the fuel has significantly improved over time, significant further improvements are to come.
Summary of Oct 2023 CARB workshop for Tier 5 non-road standards
California is looking to reduce NOx emissions from non-road engines by 90% and enforce particulate filters on all engines. Here is a summary of the latest workshop to get stakeholder feedback on Tier 5 standards.