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However, the researchers were unsure whether the grid could handle many electric trucks that were charged in the same place at the same time. Unlike electric carsWith relatively low power and being distributed across neighborhoods, fleets of electric trucks could tighten electricity distribution systems.
The distribution of electricity is based on substations that serve small areas, usually around a few square kilometers (although the population varies greatly depending on density). If an area exceeds the capacity of a substation, it can cause a disruption. Adapting more electric trucks without causing this problem can lead to major upgrades, costs and may even take months or years.
Borlaug and his colleagues modeled substation requirements using data from real-world diesel delivery fleets. The group considered how far the trucks were going and how long they spent in their home to calculate the charging needs of the electric fleet.
“About 80 to 90 percent of the substations we studied were able to accommodate fleets of up to 100 trucks without the need for major upgrades,” says Borlaug. And if fleets could manage their cargo by selecting a slower speed to avoid network stress, even fewer substations would have to upgrade, he added.
However, the truck industry has historically been slow to adopt new technology, he says Ben Sharpe, An analyst at the International Development Council for the Development of Clean Transport, a non-profit research group that studies the transport sector. Some states require boosts or even more to electrify fleets.
He passed California regulations The majority of heavy trucks sold in June 2020 for 2035 required zero emissions. The state also has an extensive voucher system to subsidize the cost of purchasing new electric vehicles. You can’t “overestimate” the importance of this California Truck Regulations, Dio Sharpek. As a result of most of these programs, half of all electric trucks currently on U.S. and Canadian roads are in California, he added.
Other U.S. states are following the path of California: in July 2020, 15 states signed it a new rule to this end, all new medium and heavy-duty vehicles require zero emissions by 2050 until the deadline for other targets is reached.
Although short-range electric trucks seem relatively close to commercial reality, some researchers they have warned that extending the range of electric trucks is not technologically or economically feasible in the short term.
“You would definitely make a short run, no doubt, because the economy is on the side, because everything is on the side,” he says. Venkat Viswanathan, Mechanical engineer at Carnegie Mellon University. Because the batteries are cheaper and lighter, trucks that can travel about 500 miles between loads are more realistic, Viswanathan said.
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