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Study finds all-electric rideshare fleet could reduce carbon emissions, but increase traffic issues

Green Car Congress

Major ridesourcing companies Uber and Lyft have promised all-electric fleets by 2030 in an effort to reduce their carbon footprint. Lead author Aniruddh Mohan and colleagues wanted to develop a method that evaluated the life-cycle costs and benefits for two battery-powered ridesource fleets and a gasoline-powered one.

Fleet 195
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Cummins and Komatsu to collaborate on advancing development of zero emissions mining haul trucks

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Building on a legacy of diesel engine partnership across a wide variety of mining and construction equipment, Cummins and Komatsu will initially focus on zero emissions power technologies including hydrogen fuel cell solutions for large mining haul truck applications.

Emissions 397
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New Rolls-Royce small turbine to begin tests to advance hybrid-electric flight

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Rolls-Royce announced its new small gas turbine that has been specifically developed to power hybrid-electric flight is set to begin testing. The engine is part of a turbogenerator system that is being developed for the Advanced Air Mobility market. The turbogenerator can be used in serial or parallel hybrid applications.

Hybrid 195
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ORNL study finds best current use of natural gas for cars is efficient production of electricity for EVs

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However, they also noted, high PTW efficiencies and the moderate fuel economies of current compressed natural gas vehicles (CNGVs) make them a viable option as well. If CNG were to be eventually used in hybrids, the advantage of the electric generation/EV option shrinks. Their open access paper is published in the journal Energy.

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Proterra and Komatsu collaborate to electrify underground mining machines

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Proterra and Komatsu, a global leader in construction and mining equipment, announced a new collaboration to electrify next-generation underground mining machines using Proterra’s battery technology. A Komatsu underground drill with Proterra batteries. This is the second collaboration between Proterra and Komatsu. Earlier post.).

2008 273
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Baker Institute report: China has positioned itself as a gatekeeper to the energy transition; nickel case study

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The global push to convert the world to electric vehicles will cause supply chain complexities that could undermine the alternative energy transition in the United States, according to a new report from Rice University’s Baker Institute for Public Policy. The detailed report— Need Nickel?

China 416
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Komatsu announces customer alliance to advance zero-emission mining; power-agnostic haul truck

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Komatsu and its mining customers Rio Tinto, BHP, Codelco and Boliden have formed the Komatsu Greenhouse Gas (GHG) Alliance. Komatsu’s power-agnostic development truck undergoes testing at a Komatsu facility in the United States.

Las Vegas 435