Fig. 1: Water consumption change.
From: Long-term water conservation is fostered by smart meter-based feedback and digital user engagement
Water consumption changes are evaluated for the households in the treatment group (blue bars) and for the households in the control group (gray bars). Short-term, medium-term, and long-term water consumption changes are evaluated as averages (a) and medians (b) of percentage household water consumption changes with respect to individual baseline consumption levels, and total volumetric water use changes for the two groups over group-wide baseline consumption levels (c). Baseline consumption levels refer to pre-treatment average consumption levels observed in the period June 1st, 2015–April 30th, 2016. Short term refers to the treatment period (June 1st, 2016–February 2nd, 2017), medium term to a period one year after the treatment (June 1st, 2017–February 2nd, 2018), and long term to a period two years after the treatment (June 1st, 2018–February 2nd, 2019). Summer water consumption changes (d) are evaluated for the months of July and August in 2016, 2017, and 2018 as total volumetric water use changes for the two groups over group-wide baseline consumption levels (water consumption levels in July–August 2015).
