California has a goal of having all big rigs that travel across the state to have zero-emissions technology.Big rigs are vital to commerce, but can also be harmful to the environment - though things are changing.
"This year we had a record-breaking attendance - 50% more people than we had last year, which was 50% more than we had the year before. So that interest is growing every single day," said Erik Neandross with the ACT Expo. Recharging the huge batteries will be one of the coming logistical challenges, but there is also another variation on the clean power theme: Hydrogen fuel cell Class-8 trucks that rely on refueling, rather than recharging."Fundamentally it is an electric vehicle. But instead of storing it in a battery, it's making electricity as it goes," said Jerome Gregeois with Hyundai.
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