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Table 3 Summary of user’s preferences

From: Household CO2-efficient energy management

  HB OV KT* DW WM TD SW
Operation on-demand
 Start αa 19:00 12:00 7:00 20:00 09:00 14:00 00:00
 End βa 20:00 13:00 7:15 22:00 11:00 16:00 24:00
 Duration γa 4 4 1 8 8 8 96
Shifting in time
 Start αa 19:00 12:00 7:00 00:00 00:00 00:00 00:00
 End βa 20:15 13:15 7:30 24:00 24:00 24:00 24:00
 Duration γa 4 4 1* 8 8 8 96
  1. The duration γa is expressed in time steps, where each time step is a quarter of an hour. The kettle is assumed to operate 5 min out of one time step