Represent outlier days I have hourly power consumption data for 30 days. On representing, each day data using a separate line, I get a plot as



I want to highlight the days with abnormally high consumption (in other words, the outlier days). I think that the current plot is too much congested. Is there any other better representation to show the outlier days?
One idea would be to plot the daily average power consumption in a bar plot:



For a finer visualization of day-hour peaks, you can try to plot it in a matrix format: