• Hydrophone Products
• Ocean Based Sensor Systems
• Ground Based Sensor Systems
• Acoustic Transducers
• Energy Harvesting Systems
• System Design
• Hardware Development
• Fabrication and Assembly
• Testing
• Consulting

Energy Harvesting Systems

SeaLandAire has developed energy harvesting systems that are applicable to the ASV, UGS, and moored buoy. The purpose of this development is to extend the operational life of the device. Energy harvesting can take many forms and is dependant upon the environment that the device is located in. The main sources of energy include:

• Solar
• Wind
• Wave (for ocean based systems)

Solar energy is harvested with the use of Gallium Arsenide (GaAs) solar cells. SeaLandAire uses the GaAs cells due to their higher efficiencies. GaAs cells can reach efficiencies of up to 26% in unconcentrated light.

Wind is harvested on the ASV by use of a sail, that when coupled with an autonomous navigation system will provide propulsion. The sail may be rotated to achieve the desired propulsion or may be lowered if weather conditions warrant.

Wave motion is harvested be a couple of different methods. One method is to use a reactionary foil located below the ocean surface. As the surface vessel moves vertically in the wave motion, the reaction foil will provide a force that will allow a generator to be rotated. Energy is then extracted from the generator. In addition, the wave motion in conjunction with the reaction foil will also propel the surface vessel in a forward direction.