Sankey diagrams can be used to visualize the breakdown of money / electriciy. You have a big base value like the energy used by an average single German in December 2017. Then you build big clusters:
and you might be able to split household up again:
The online tool [sankeymatic.comhttp://sankeymatic.com/build/) can build quite nice Sankey diagrams with a simple interface.
A typical workday in Munich:
Study  Day Sleep  Day Commuting [0.4] Day Breakfast/Dinner/Lunch [1.0] Day Buying food [0.3] Day Shower [0.3] Day TV [0.3] Day Communication  Day Housekeeping [0.5] Day Projects [2.5] Day Day  Work Day  Sleep Day [1.8] Commuting Day  Breakfast/Dinner Day [0.5] Buying food Day [0.3] Shower Day  TV Day  Communication Day [0.5] Housekeeping Day [0.9] Projects
Day [9.5] Study Study  Lectures Study  Self-study Study  Group-study Study  Projects Study [0.5] Communication Day [7.5] Sleep Day [0.4] Commuting Day [1.0] Breakfast/Dinner/Lunch Day [0.3] Buying food Day [0.3] Shower Day [0.5] TV Day  Sports Day [0.5] Communication Day [0.5] Housekeeping Day [2.5] Projects