Port of Seattle Clean Ports Planning Grant: Powering the
Maritime Transition in the Pacific Northwest
Scope of Work
The Port of Seattle (POS), Northwest Seaport Alliance (NWSA), and Port of Tacoma (POT),
collectively the Ports, have committed to phase out emissions from seaport-related
activities by 2050. Oceangoing vessels (OGV) and harbor vessels (HVs) are the two largest
sources of maritime-related air pollution and greenhouse gas (GHG) emissions in the Puget
Sound region. These sectors are also the hardest to decarbonize and will require new
technologies and fuels. This project will help catalyze the transition to sustainably powered
and modernized vessels and prepare the region, maritime industry, communities, ports,
and workforce for the transition to zero emissions (ZE). Through the completion of a Vessel
Activity and Maritime Fuel Inventory, Harbor Vessel Modernization Feasibility Study, a
Sustainable Maritime Fuels Transition Analysis, and extensive engagement with industry
and near-port communities, this proposal aims to accelerate the transition to a ZE
maritime industry, reduce impacts to communities, and provide replicable models for
vessel modernization that can be used across the nation.
The projects tasks include:
• Part 1: Project Management Plan and Governance
• Part 2: Vessel Activity and Maritime Fuel Inventory
o Characterize Harbor Vessels and Ocean-Going Vessels calling Seattle-
Tacoma ports
o Analyze Harbor Vessels traic to develop a heat map of Harbor Vessels
activity
o Analyze maritime fueling, location, and supply chain data for Ocean-Going
Vessels
o Characterize fueling activity and well-to-wake GHG emissions of Ocean-
Going Vessels fuel consumption
• Part 3: Harbor Vessel Modernization Feasibility Study
o Task 3.1: Technology Assessment
o Task 3.2: Electrification Site Prioritization
o Task 3.3: Strategy Development and Tradeo Analysis
• Part 4: Sustainable Maritime Fuels Transition Analysis
o Task 4.1: Fuel Infrastructure Investment and Supply Acquisition Strategy
Fuel Demand Analysis
Fuel Storage and Bunkering Infrastructure Investment Analysis
Fuel Supply Acquisition Strategy
o Task 4.2: Methanol Bunkering Feasibility Study & Desktop Exercise
o Task 4.3: Maritime Fuels Transition Roadmap Assessment
Item No. 8f Attach
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2
Meeting Date: April 22, 2025
• Part 5: Stakeholder Collaboration and Communication
o Task 5.1: Community Engagement
o Task 5.2: Industry Engagement
o Task 5.3: Workforce Development Impacts Study
Preliminary Schedule
The project is expected to take approximately three years to complete, with funds expended
per EPA grant requirements by 12/31/2027.
Activity
2025
2026
2027
Q1
Q2
Q3
Q4
Q1
Q2
Q3
Q4
Q1
Q2
Q3
Q4
Project Kick
-
off
Project Management
-
Governance
Vessel Activity and Fuel Inventory
Harbor Vessel Feasibility Study
Fuel Infrastructure
Analysis
Supply Acquisition Strategy
Methanol Bunkering
Exercise
Fuels Transition Roadmap
Community Engagement
Industry Engagement
Workforce
Impacts Study
Project Complete