The next most logical step in designing your time of use mapping controls is to define your time of use codes. To do this, look at the time of use periods to which your usage needs to be mapped. These values will likely correspond to the time of use quantities that your rate bills for. (Although it's possible that you are not billing for every time of use period.) Be sure to consider special time periods in your contracts such as holidays, curtailment days and interruption days.

Building on the above example, we have the following time of use codes defined:

For more information about time of use, refer to UOM versus TOU versus SQI.