The Survey of TOU Rates in the United States

Costs Recovered Through TOU Charge Costs Recovered under TOU Rate Residential Name of Investor-Owned Utility State Customers Generation Transmission Distribution [1] Potomac Electric Power Company MD 496,347 [2] Jersey Central Power & Light Company NJ 977,420 [3] Arizona Public Service Company [4] NSTAR Electric Company AZ 1,046,989 MA 1,063,565 [5] Connecticut Light & Power Company CT 1,117,897 [6] Baltimore Gas & Electric Company MD 1,132,934 [7] San Diego Gas & Electric Company CA 1,266,249 [8] Ohio Power Company OH 1,276,363 [9] Consumers Energy Co MI 1,577,087 [10] Virginia Electric & Power Company VA 2,150,818 [11] Southern California Edison Company CA 4,381,511 [12] Pacific Gas & Electric Company CA 4,749,486 Average 1,769,722 92% 8% 58% We reviewed the tariffs of large utilities that offer a TOU Generation costs are almost always recovered on a time-differentiated basis Distribution costs are recovered through a time-varying charge in roughly half of the cases Transmission costs are recovered through a time-varying charge in only one case Ten other TOU rates offered by large IOUS were researched, though information on the unbundled costs was not available Privileged and Confidential Prepared at the Request of Counsel brattle.com 12

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