Electric Outboard Use Cases
The following examples illustrate some of the ways electric commercial boats are used in Maine. Motors and hulls are only suggestions and will depend on specific uses. Many of the following use-cases currently have examples on the water, while others are in development.
Boatyard skiffs
- Motor type: 10-27 hp outboard
- Examples: ePropulsion Navy 6.0 Evo with tiller or ePropulsion X12
- Hull examples: 14-foot Highfield RIB, or 14-foot Aluminum welded, flat bottom skiff
- Use: Used to transport yard crew to boats and support the operations of a small boat yard
- Charging: Charges on the dock over night
- Example boats: Pendleton Yacht Yard | Hylan & Brown Boatyards | Town of Yarmouth
Dinghies
- Motor type: 3-10hp outboard
- Examples: ePropulsion Spirit 1.0 Plus or Mercury 7.5e
- Hull examples: Jon 12 Dinghy or 90” dinghy
- Use: Used to transport commercial users from the dock to their boat on a mooring
- Charging: Charges on the dock over night or battery is removed and charged indoors
- Example boat: Rippleffect
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Aquaculture
OYSTER AQUACULTURE
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- Motor type: 27-100hp outboard
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- Examples: ePropulsion X20 or Flux Marine 100hp
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- Hull examples: 16 to 27-foot fiberglass, wood, or aluminum hull
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- Use: Used near-shore to transport farm crew and loads of gear or product to provide support for overall on-the-water farm operations. Level of load will need to be compatible with hull and battery weight. It is recommended to repower a secondary, smaller craft first.
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- Charging: Charges overnight at land-based facility or, if power accessible, at dock. If the work barge has excessive solar and solar power, it could charge at barge during the day.
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- Example boats: Lanes Island Oysters | The Boat Yard
MUSSEL AQUACULTURE
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- Motor type: 100hp outboard
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- Examples: 100hp Flux Marine outboard
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- Hull example: 24-foot aluminum Garvey skiff
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- Use: Assisting larger farming vessels with farm tasks (seeding, harvesting, gear maintenance), transportation of people and gear.
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- Charging: Charges overnight with level 2 charging at dock
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- Stay tuned for more detailed information on mussel aquaculture use cases in the future
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- Example boat: The Boat Yard
KELP AQUACULTURE
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- Use: Used near-shore to transport farm crew and light loads of gear or product to provide support for overall on-the-water farm operations. Provides support for seeding and harvesting. Can be towed to farm locations further from launch if necessary
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- Traditional motor type: 15- 60 hp outboard
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- Examples: Mercury Avator 110e or ePropulsion X40
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- Charging: Charges overnight at land-based facility or, if power accessible, at dock with level 2 charging.
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- Stay tuned for more detailed information on kelp aquaculture use cases in the future
Community Sailing Programs
- Motor type: 10-20hp outboard
- Examples: ePropulsion Navy 6.o Evo with controls or Elco EP-20
- Hull examples: 18’ wooden or fiberglass skiff
- Use: Used to transport members to boats and support the operations of the sailing program
- Charging: Charges on the dock overnight
- Example boats: The Apprenticeshop | Little Cranberry Yacht Club
Research and Tourism
- Motor type: 25-100hp outboard
- Examples: ePropulsion X20 or X40 or Flux Marine 100hp
- Hull type: 22-foot Pontoon boat or Highfield Sport 660
- Use: Use varies on a case-by-case basis
- Charging: Charges on dock overnight and between uses as needed
Bait fishing and clamming
- Motor type: 1-10hp outboard
- Examples: Spirit 1.0 Plus, or Elco EP-9.9
- Hull examples: 14-foot aluminum or wooden skiff
- Use: Used to troll for bait or travel to the clam flat
- Charging: If trailered, charged at home-charger, or charges on the dock over night
- Example boats: Ryan Maker | Lanes Island Oysters
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Electric Boats Supported by Island Institute

Recipient | Pemaquid Fisherman’s Wharf |
Grant awarded | December 2024 |
Use-Case | Dinghy for lobsterman |
Boat | Fiberglass skiff |
Motor make | ePropulsion |
Motor model | Spirit 1.0 Plus |
Battery | Integrated 1276 Wh |