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Time-of-Use Rates and In-Home Installations <br /> Elk River Municipal Utilities currently has eight residential customers participating in the EV <br /> charging program.The monthly sales data (Graph 1) illustrate that since January 2017, 83 <br /> percent (45,672 kWh) of the sales to these customers occurred between 11 p.m. and 7 a.m., <br /> Monday through Friday, or on weekends and holidays. Only 17 percent of home charging <br /> occurred during on-peak times. Looking at the detailed individual customer data, it is clear that <br /> two customers do not have the battery storage capacity to allow them to charge in only off- <br /> peak times or they are indifferent to the price differential between on- and off-peak energy <br /> pricing. <br /> Total In-Home kWh Sales Jan. '17 - Dec. '18 <br /> 50,000 <br /> 45,000 <br /> 40,000 <br /> 35,000 _ ______.. <br /> 30,000 <br /> 25,000 <br /> ■kWh Sales <br /> 20,000 <br /> 15,000 <br /> 10,000 <br /> 5,000 <br /> In-Home Off-Peak In-Home On-Peak Graph 1 <br /> For public charging stations, 67 percent of sales were on-peak while 33 percent were off-peak. <br /> Elk River Municipal Utilities primarily uses the Level 2 charger in the parking lot, almost <br /> exclusively during off-peak hours (Graph 2). ERMU fleet used only 683 kWh of the 57,327 kWh <br /> over the study period of January 2017 through December 2018. Sales to ERMU accounted for <br /> less than one percent of the total program sales. ERMU initially provided off-peak rates at fairly <br /> restrictive hours (11 p.m. to 7 a.m.). Effective January 1, 2019, Elk River Municipal Utilities <br /> expanded off-peak hours to 10 p.m. to 10 a.m. Monday through Friday and holidays. <br /> 16 <br /> 55 <br />