Rapid battery cost declines accelerate the prospects of all-electric interregional container shipping

Jessica Kersey, Natalie D. Popovich and Amol A. Phadke ()
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Jessica Kersey: University of California
Natalie D. Popovich: Energy Technologies Area, Lawrence Berkeley National Laboratory
Amol A. Phadke: Energy Technologies Area, Lawrence Berkeley National Laboratory

Nature Energy, 2022, vol. 7, issue 7, 664-674

Abstract: Abstract International maritime shipping—powered by heavy fuel oil—is a major contributor to global CO2, SO2, and NOx emissions. The direct electrification of maritime vessels has been underexplored as a low-emission option despite its considerable efficiency advantage over electrofuels. Past studies on ship electrification have relied on outdated assumptions on battery cost, energy density values and available on-board space. We show that at battery prices of US$100 kWh−1 the electrification of intraregional trade routes of less than 1,500 km is economical, with minimal impact to ship carrying capacity. Including the environmental costs increases the economical range to 5,000 km. If batteries achieve a US$50 kWh−1 price point, the economical range nearly doubles. We describe a pathway for the battery electrification of containerships within this decade that electrifies over 40% of global containership traffic, reduces CO2 emissions by 14% for US-based vessels, and mitigates the health impacts of air pollution on coastal communities.

Date: 2022
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DOI: 10.1038/s41560-022-01065-y

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