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Shore power infrastructure has the potential to significantly reduce emissions at ports by enabling vessels to turn off their engines and instead plug into the local electricity grid to power auxiliary systems while at berth. EPA’s Shore Power Technology Assessment at U.S. Ports - 2022 Update characterizes the technical and operational aspects of shore power systems in the U.S. and shows an approach for comparing shore power and vessel emissions while at berth. This report is based on EPA’s 2017 Assessment and has been updated to include:
- Information on new shore power systems in the U.S. since 2017.
- Updates to the California Air Resources Board (CARB) regulations, including new shore power requirements that expands participation.
- Updated information on vessel readiness and real-world costs.
- Practical operational lessons learned from CARB as well as port operators implementing shore power programs at the ports of New York & New Jersey, Seattle, Hueneme, and Los Angeles.
This report, in conjunction with EPA’s Shore Power Emissions Calculator (SPEC) updated in May 2022, can help port stakeholders – including applicants for Diesel Emissions Reduction Act, Bipartisan Infrastructure Law, and Inflation Reduction Act funding – evaluate whether shore power would be an appropriate means to reduce pollution at a port, and to estimate emissions reductions from installed systems.
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