Salt, Sea, and Sustainability: Rethinking Power for Malaysia’s Small Fishing Vessels

Abstract

In many coastal communities across Malaysia, small to medium-sized fishing vessels rely on repurposed motorcycle batteries as their primary source of electrical power. These batteries are used to operate essential equipment such as lamps and to charge mobile devices, which are vital for navigation, safety, and communication. However, this practice raises significant sustainability concerns, including improper battery disposal, safety risks, and recurring costs for low-income fishermen. This study addresses the pressing need for a more sustainable, low-maintenance alternative by analysing the thematic concerns surrounding energy use aboard fishing vessels and laying the groundwork for the design of a saltwater-based electricity generator. The research employs a qualitative thematic analysis, drawing insights from interviews with local fishermen, field observations at fishing docks, and a review of existing literature on off-grid renewable energy technologies in marine settings. The analysis explores key themes such as energy accessibility, safety, environmental impact, cost burden, and technological awareness among fishermen. These themes are used to inform the conceptual development of an alternative energy solution that is both practical and environmentally friendly. Insights from the analysis reinforce the relevance of pursuing a saltwater-based electrochemical generator as a viable solution. While the project is in its initial stages, the thematic analysis offers a crucial foundation for user-centred design and aligns with broader goals of sustainable marine development.

Keywords: sustainable energy, fishing vessels, salt water generator, electricity generation, thematic analysis, off-grid electricity