1) The document describes a behavior change and incentive model called SmartH2O that was developed to motivate households to save water through smart meter feedback, consumption visualizations, gamification, and rewards. 2) Preliminary results from a pilot study in Switzerland showed an average water consumption reduction of 33.8% among participants, with the highest reductions in low and medium-high consumption households. Technology acceptance results were also positive. 3) Gamification elements like badges and leaderboards showed promising early engagement from lead users, though the full impact of gamification still needs to be evaluated further. A larger validation study is planned for about 500,000 households in Valencia.