The Survey of TOU Rates in the United States
Percent of Piloted TOU Rates
Duration of Peak Window
Peak Period Duration in Recent TOU Pilots
40%
30%
20%
10%
0%
8
10
12
Duration of Peak Period
Sources and notes: Chart based Brattle database of TOU rates tested
in recent pricing pilots. Includes international TOU pilots (15 of 38
TOU pilots in the database).
Comments
-TOU rates designed recently
(i.e., those developed for
pricing pilots in the past
decade) typically have a peak
period of 6 hours or less - those
are the TOU tariffs shown in the
figure at left
-Among the broader set of
TOU rates being offered on a
full-scale basis, it is common for
existing TOU rates to have
peak period of 12 hours or
more
Many of those older rates
have been offered for many
years and have low enrollment
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