The Survey of TOU Rates in the United States

Percent of Utilities Distinct TOU Offers per Utility Number of TOU Offers per Utility 75% 60% 45% 30% 15% 0% 1 3 2 Number of Distinct TOU Offers Retail Competition Yes No Comments Among utilities offering TOU rates, there are on average two distinct TOU options available to customers -Features commonly differentiating the distinct TOU offers include timing of peak period, inclusion of demand charge, and applicability to specific end- uses such as electric vehicles or heat pumps Sources and notes: Brattle analysis of OpenEl Utility Rates Database. Data shown for IOUS only. Privileged and Confidential Prepared at the Request of Counsel brattle.com | 11

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