Planning concept for a compact electric boat for lake day trips and sightseeing tours for about 10 people, with fast marina charging, a sun canopy, and a swim platform.
What it is: a flat-deck electric passenger boat sized for calm inland water, short cruises, and dock-to-dock tour use.
Who it is for: a tour operator, marina owner, resort, or private owner who wants quiet operation and low local emissions.
How it will be used: slow to moderate cruising, short scenic trips, boarding at a dock, and occasional swimming stops.
Main goals: stable ride, simple maintenance, safe passenger movement, easy charging, and a clean open layout.
| Item | Approx. value | Unit | Notes |
|---|---|---|---|
| Overall length | 288 | in | Approx. overall including swim platform |
| Beam | 102 | in | Approx. for stability and seating |
| Hull depth to deck | 34 | in | Approx. freeboard target |
| Passenger capacity | 10 | people | Approx., subject to stability and local rules |
| Battery capacity | 80 to 120 | kWh | Approx. usable range depends on load and speed |
| Motor output | 40 to 80 | kW | Approx. twin or single drivetrain option |
| Typical cruise speed | 6 to 10 | kn | Approx. for sightseeing use |
| Top speed | 12 to 18 | kn | Approx., not a performance craft |
| Run time | 4 to 8 | hr | Approx. based on speed, weather, and load |
| Charge time | 1 to 3 | hr | Approx. with marina fast charging setup |
| Primary materials | Aluminum, marine composite, stainless steel | - | Approx. material mix for light weight and durability |
| Estimated dry weight | 7,000 to 10,000 | lb | Approx. varies by battery size and structure |
Simple massing data for a rough visual model. Units are inches.
The boat uses an electric drive system fed by a lithium battery bank sized for short daily trips. Shore power or marina fast charging tops up the pack between cruises, so the boat can return to service quickly.
A shallow open deck keeps boarding simple and gives passengers a clear view. The canopy provides shade, while the swim platform supports easy water access at slow speed or at rest.
The hull shape is aimed at stability, low wake, and comfortable touring speeds rather than high performance.
| # | Part | Typical spec | Qty | Est. unit | Est. total | Supplier type |
|---|---|---|---|---|---|---|
| 1 | Hull shell and structure | Welded aluminum or composite shell, approx. 24 ft | 1 | $18,000 to $30,000 | $18,000 to $30,000 | Boatbuilder / metal fabricator |
| 2 | Deck and seating platform | Marine deck panels and seat bases | 1 | $4,000 to $8,000 | $4,000 to $8,000 | Marine supplier |
| 3 | Battery bank | Approx. 80 to 120 kWh lithium pack | 1 | $22,000 to $35,000 | $22,000 to $35,000 | Electric marine systems supplier |
| 4 | Motor, controller, and drive | Approx. 40 to 80 kW package | 1 | $10,000 to $18,000 | $10,000 to $18,000 | Marine electric propulsion supplier |
| 5 | Swim platform and boarding ladder | Non-slip stern platform with ladder | 1 | $1,200 to $3,500 | $1,200 to $3,500 | Marine hardware supplier |
| 6 | Canopy and support frame | Light frame with weather shade | 1 | $3,500 to $7,500 | $3,500 to $7,500 | Canvas / marine fabrication shop |
| 7 | Helm and controls | Throttle, steering, display, wiring | 1 | $1,500 to $4,000 | $1,500 to $4,000 | Marine electronics supplier |
| 8 | Passenger seating | Upholstered marine seating for about 10 | 1 set | $3,000 to $6,000 | $3,000 to $6,000 | Marine seating supplier |
| 9 | Charging inlet and shore gear | Marina-ready charge port and cabling | 1 | $2,500 to $6,000 | $2,500 to $6,000 | Electrical / marine charging supplier |
| 10 | Safety gear and accessories | Lights, pumps, fenders, rails, signage | 1 set | $2,500 to $5,500 | $2,500 to $5,500 | Marine chandlery / safety supplier |
Rough total budget: about $68,700 to $133,500 depending on materials, battery size, finish level, and integration. Typical retail estimates only; prices change.
| Phase | What happens | Rough time | Needs a professional? |
|---|---|---|---|
| 1. Requirements and sketching | Confirm use case, capacity, layout, charge method, and budget | 1 to 2 weeks | Advisable |
| 2. Concept engineering | Estimate weight, stability, range, and structure | 2 to 4 weeks | Yes, naval or marine engineer |
| 3. Detailed design | Draw structure, wiring, charging, and interior layout | 3 to 6 weeks | Yes |
| 4. Hull and structure fabrication | Build hull, deck, canopy frame, and platform | 4 to 8 weeks | Yes for welding / composite work |
| 5. Electrical and propulsion install | Fit batteries, motors, controller, charging gear, and controls | 2 to 4 weeks | Yes, licensed electrician and marine tech |
| 6. Interior fit-out and finishing | Install seating, rails, lighting, signage, and safety gear | 1 to 3 weeks | Some work may be owner-led, final checks by pro |
| 7. Testing and inspection | Float test, range check, safety review, and compliance review | 1 to 2 weeks | Yes |