AQ2-R • Prototype Development

Modernize the propulsion. Keep the vessel.

A removable electric water-jet retrofit platform being developed for suitable existing marine vessels.

Explore AQ2-RSupport on Indiegogo
The AQ2-R concept

Electric marine propulsion retrofit designed around the vessel you already have.

AQ2-R is being developed as a removable electric water-jet propulsion platform for suitable existing vessels—an alternative path to modernization without replacing the entire vessel.

Removable podDesigned to be removed for service, maintenance and future upgrades.
Electric water-jetNo propeller. Electric propulsion drives the water-jet system.
Retrofit approachBuilt around adapting suitable vessels rather than starting with a new hull.
AQ2-R removable electric waterjet propulsion pod and Vessel Docking Structure concept
AQ2-R Brand Film

See the AQ2-R vision.

A closer look at the removable electric water-jet retrofit concept, smart monitoring direction and the marine environment that inspires the work.

Press play to watch the AQ2-R brand film. Audio does not autoplay.

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AQ2-R Updates

Keep me updated.

Join the Aqua Leaf customer update list for AQ2-R development news, prototype milestones and campaign announcements.

Updates will describe the development process; they do not guarantee production, certification or a fixed commercialization schedule.

How it works

Remove. Service. Reinstall.

The VDS remains with the vessel while the AQ2-R pod is designed to be removable. The concept supports dockside handling and service access without treating the propulsion unit as a permanent part of the hull.

AQ2-R electric marine propulsion retrofit installed at the stern of a commercial work vessel

1. Installed. AQ2-R sits inside the vessel docking structure.

AQ2-R removable electric waterjet pod shown in a dockside service and maintenance concept

2. Removed for service. The pod can be handled separately from the vessel.

AQ2-R removable propulsion pod aligning with the permanent Vessel Docking Structure interface

3. Reinstalled. The pod returns to the VDS and reconnects to the vessel systems.

AQ2-R removable electric waterjet propulsion pod by Aqua Leaf Technology
Operating economics

Move beyond diesel propulsion costs.

A fully electric propulsion conversion eliminates diesel fuel consumption and diesel-engine oil changes associated with the propulsion engine.

Actual operating savings will depend on the vessel, duty cycle, local fuel and electricity prices, charging strategy, maintenance requirements and final AQ2-R configuration. We present those economics as vessel-specific—not as a universal savings claim.

No diesel propulsion fuelRemoves the recurring diesel fuel expense of the replaced propulsion engine.
No diesel-engine oil changesRemoves routine propulsion-engine oil and associated filter service.
Your current diesel & oil cost

How much are fill-ups and oil changes costing you?

Use your vessel's real numbers. The calculator estimates what you currently spend each year on diesel fill-ups and propulsion-engine oil changes.

Diesel fill-ups

Oil changes

Enter the amount of diesel you actually add during a typical fill-up—not necessarily the vessel's full tank capacity.

Cost per diesel fill-up
$0
Diesel fill-ups per year
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Annual diesel fill-up cost
$0
Annual oil-change cost
$0
Current annual diesel + oil-change spending
$0

Formula: gallons per fill-up × diesel price × fill-ups per month × 12, plus oil-change cost × oil changes per year. This shows current diesel/oil spending; it is not a guaranteed AQ2-R net-savings figure.

Preview note: The calculator runs when this page is opened as a website in a browser. Some phone ZIP/file previews display the page but do not run its JavaScript.

Smart systems

Know what the system is doing.

AQ2-R's monitoring concept combines battery supervision with vessel-facing system awareness so operators can see important conditions in real time and respond earlier when attention is needed.

BMS — Battery Management System

Monitors battery operating conditions such as cell and pack voltage, current, temperature and state of charge; supports balancing, charge/discharge limits and protective responses according to the final battery architecture.

SMS — Smart Monitoring System

Brings propulsion and sensor information together for onboard visibility, status, alerts, diagnostics and preventive-maintenance awareness. Final monitored and controlled functions will follow prototype integration and validation.

“We are in their world. We should respect their home.”

Our waterways are living habitats. Aqua Leaf's environmental direction is about reducing reliance on diesel propulsion, eliminating propulsion-engine oil changes after conversion, and developing marine technology with greater awareness of the environment in which vessels operate. AQ2-R-specific acoustic and ecological effects will require vessel-level testing.

Prototype development

From concept to physical validation.

The next stage is focused on physical prototype development, integration, testing and validation of the AQ2-R platform.

That work will help establish measured performance, refine the installation architecture and provide the data needed for future engineering, certification and commercialization decisions.

AQ2-R removable propulsion pod and permanent Vessel Docking Structure for marine vessel retrofit
In the news

Featured in The Florida Mariner

AQ2-R: Modernizing Marine Propulsion Without Replacing the Vessel

The Florida Mariner, Issue #1069 — August 9, 2026, page 12.

Florida Mariner feature on Aqua Leaf Technology AQ2-R removable electric marine propulsion retrofit

Tap the published page to open the feature at full size.

Read the Full Article
AQ2-R FAQ

Questions about the removable electric marine propulsion concept.

What is AQ2-R?

AQ2-R is being developed as a removable electric waterjet propulsion retrofit platform for suitable existing marine vessels.

Can AQ2-R retrofit an existing vessel?

The platform is being developed around adapting suitable existing vessels. Vessel compatibility, installation and final engineering requirements will require vessel-specific review.

What stays on the vessel when the pod is removed?

The Vessel Docking Structure (VDS) remains with the vessel while the AQ2-R propulsion pod is designed to be removed for service, maintenance or future upgrades.

Does AQ2-R use a propeller?

No. The AQ2-R concept uses electric propulsion to drive a waterjet system rather than an exposed propeller.

What do the BMS and Smart Monitoring System do?

The BMS supervises battery operating conditions and protective limits. The Smart Monitoring System is intended to bring propulsion and sensor information together for onboard status, alerts, diagnostics and preventive-maintenance awareness.

What stage is AQ2-R in now?

AQ2-R is in prototype development. The next stage focuses on physical integration, testing and validation to establish measured performance and refine the installation architecture.

Indiegogo campaign

Help bring AQ2-R to the water.

Support for the campaign helps advance the AQ2-R prototype toward integration, testing and validation.

Support AQ2-R on Indiegogo

Visit the official AQ2-R Indiegogo campaign to follow and support prototype development.