Field trip to Ubatuba – February 12 and 13, 2025!

Feb 14, 2025

Field trip to Ubatuba – February 12 and 13, 2025!
The Team Hygroenergy was in Ubatuba-SP on February 12 and 13 to monitor the signaling buoy that was being tested at the experimental farm of the Fisheries Institute. This buoy uses a commercially available solar-powered system, which we used as a reference for buoyancy and light intensity tests. After 15 days at sea, the solar panel stopped working, so we retrieved the buoy to replace the solar cell. Two new buoys were deployed for testing: one with a hybrid system (solar and hygroelectricity) and another powered solely by hygroelectricity.

Algae cultivation raft with the signaling buoy that was being tested.

Testing the new buoy at sea before installation.

Replacing the old buoy with the new ones.

Removed like this.

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About This Project

Is it possible to power a nautical signaling system with hygroelectricity?

Unicamp, IFSP

Hygroelectricity is a promising energy source based on charge separation from water molecules. Building on recent research, we study materials and geometries for hygroelectric cells to generate DC power. Our latest challenge is developing cells to power nautical signaling using seawater. With your support, we seek to apply hygroelectricity’s principles to create clean, sustainable ocean energy solutions.