This project aims to prove that it is possible to build a small-scale, low-budget wave energy conversion system, optimized for near-shore operation.
A prototype was developed to efficiently harvest wave energy and measure output voltage, with the intention of also tracking the wave height. The solution for the problem statement consists of a buoy made in styrofoam and a mechanical energy conversion system. When the buoy moves with the waves, the 3D-printed rack and pinion converts linear motion into rotational movement driving a 12 V generator.
During testing, the system managed to generate an average of 9.6 V, peaking at 12 V. These values were obtained by measuring the voltage with an Arduino and transmitting them to a website using LoRa, a wireless long range communication system.
The project concludes that it is possible to generate electricity from a small-scale buoy prototype using a mechanical energy conversion system. Furthermore, it is possible to collect and send data about voltage, but more work is required to get accurate measurements of the buoy’s movement
By Alice Helstad & Wilma Silvander
BTH Innovation Labs 