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At a glance

Project Solar Proa is developing wind-solar-powered hybrid vessels for carbon-neutral small-scale tropical maritime transport, exploration, and tourism. Completion of our 9-meter minimal viable product Roti Proa II is targeted for mid-2026 and strategic partnerships are available for commercial validation.


The vision

Electric vehicle adoption across Asia has created new expectations for quiet, clean transportation - expectations that extend to maritime sector. We’re bringing carbon-neutral propulsion to water transport, island-hopping, snorkeling, and diving tourism through vessels that combine:


Our Vessels

Roti Proa I

Status: Completed & Tested (2025)

Size: 4.2m prototype

Achievement: Proof of concept validated in Singapore waters

View Details & Renders →

Roti Proa II

Status: Under Construction

Size: 9m day tourism vessel

Capacity: 4 passengers + 2 crew

Target: June 2026 completion

View Details & Renders →

Roti Proa III

Status: Design Phase

Size: 13m multi-day vessel

Capacity: 5-6 passengers

Target: 2027 validation

View Details & Renders →


Why Tropical Southeast Asia?

Exceptional solar irradiation makes the region ideally suited for sustainable maritime propulsion. Our designs optimize traditional outrigger configurations to maximize solar panel area while maintaining excellent sailing characteristics.

The shunting, single-outrigger layout provides:


Commercial Opportunities

Eco-Tourism Applications:

Operational Advantages:

Market Position: At 10 knots under motor power, Roti Proa II targets the contemplative pace of eco-tourism - where the journey itself is part of the value proposition.


Technical Innovation

All vessel designs are created using parametric CAD modeling in FreeCAD and Python, enabling:

Explore the CAD Models →


Current Status & Timeline

Q1 2026: Main hull delivery (9m Roti Proa II)
Q2 2026: Final assembly and sea trials
Q3 2026: Commercial validation with strategic partners
2027+: Pilot production and 13m vessel development


Partnership Opportunities

We welcome strategic partners for:

Partnership structures can be flexibly tailored to organizational priorities.


Project Team

Project Coordinator: A/Prof Martin Henz, School of Computing, National University of Singapore

Technical Advisors: Naval architect, naval engineer, electrical engineer

Support: National University of Singapore, industry sponsors, private donors


Contact

Email: henz@nus.edu.sg
Institution: School of Computing, National University of Singapore


Combining Southeast Asian maritime traditions with modern sustainable technology

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