The Survey of TOU Rates in the United States

Price Response Relationship Between Price Response and Price Ratio. Peak Impact 60% 40% 20% 0% 2 4 6 8 10 Peak to Off-Peak Price Ratio Rate Design →With Technology → Price Only Sources and notes: Arcturus, a Brattle database of customer response to time-varying rates. Arcturus includes international TOU pilots (15 of 38 TOU pilots in the database). Comments -Results of the recent TOU pilots demonstrate that customers respond to time- varying rates by shifting their on-peak usage to off- peak hours -As the price ratio increases, customers shift usage in greater amounts, but at a declining rate -When offered with enabling technology, the effect is stronger Privileged and Confidential Prepared at the Request of Counsel brattle.com 18

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