Decarbonization of the maritime industry requires fostering habits and conditions that enable operators to make energy-conscious decisions. User interface (UI) design can play a key role in developing strategies to enhance user awareness and motivation. Specifically, UI design can implement feedback mechanisms that help users better understand the consequences of their actions on energy consumption. This approach has demonstrated measurable reductions in energy use in domains such as automotive systems and home appliances. However, research on eco-feedback and its implementation through UI design remains limited in the maritime context. We aimed to address this gap by conducting a systematic review of eco-feedback research and developing an eco-feedback framework (EFF) for UI design. We identified 39 strategies for providing feedback on a UI. These strategies were organized and synthesized into a design framework, the EFF. We illustrate the proof of concept of the EFF with a maritime example: a cruise control system that regulates a ship's speed and power use. Finally, we discuss other potential applications of the EFF in UI design research and conclude by highlighting its importance in fostering habits and conditions for energy-conscious decision-making in the maritime industry.
Nzongo et al. (Mon,) studied this question.