Just as we have a line graph showing instantaneous power usage. How about a line graph showing the energy meter. right now we have bar graphs that can get as resolute as the hour of the day. why not a line graph adding up the energy usage through out the day. let the beginning of the day be zero (or choose it to start from the beginning of the week, or month, or year, or billing cycle, or even to match what the meter says outside ) and let the line gradually increase as if it were reading the energy meter every second and graphing it on a chart.
Just as with the power meter, we could scroll through the energy meter and see what the meter read at different times,