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NACFE releases guidance report on hydrogen fuel cell heavy-duty trucks

Green Car Congress

Hydrogen is a regional solution, cheap hydrogen even more so. The report contains 101 figures and 230 references. Much more material exists but these are the reference and figures the NACFE team believes helped put hydrogen fuel cell electric heavy-duty tractors in perspective.

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Build a Passive Radar With Software-Defined Radio

Cars That Think

A reference antenna picks up a signal from, say, a cell tower, while a surveillance antenna is tuned to the same frequency. The reference and surveillance signals are compared. Building off the demand stimulated by this activity, a number of manufacturers have started making premium, but still relatively cheap, SDRs.

Building 100
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SEC removes emissions requirements from climate rules draft

Teslarati

Scope 3 emissions refer to greenhouse gases, including carbon dioxide, which are released into the atmosphere through the supply chains of many companies, as well as the use of the products by consumers. Economist says cheap Chinese EVs should be kept out of U.S.

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BNEF report finds hydrogen promising decarbonization pathway, but carbon prices and emissions policies required

Green Car Congress

Note: Clean hydrogen refers to both renewable and low-carbon hydrogen (from fossil-fuels with CCS). Renewable hydrogen can be made by splitting water into hydrogen and oxygen, using electricity generated by cheap wind or solar power. Summary of the economics of a hydrogen economy. Source: BloombergNEF.

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A closer look at axial flux motors

Charged EVs

The field in an AC motor must be located in the rotor, then, and it can either be directly supplied by permanent magnets (or even an electromagnet fed by brushes and slip rings), or indirectly supplied by the stator coils through transformer action, or induction.

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Opinion: The End Of An Era: Is The US Petrodollar Under Threat?

Green Car Congress

The reasons for the cozier relationship between the two giant powers are, of course, rooted in the Ukraine crisis and subsequent Western sanctions against Russia, combined with China’s need to secure long-term energy supplies. Rise of the Yuan. Source: [link]. Market Background Oil Opinion Policy'

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Heating Buildings With Solar Energy Stored in Sand

Cars That Think

A Battery for Heat Made from Sand Noted chemical engineer Donald Sadoway is quoted as saying: “If you want to make a dirt-cheap battery, you have to make it out of dirt.” Sand is efficient, nontoxic, portable, and cheap!”. “We There is nothing special here!” Eronen says, laughing. How did they arrive at these dimensions?

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