Regional EV Impact Analysis | Pacific Northwest Six-Utility Study, 2015-17

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After analyzing the costs and benefits of plug-in electric vehicles (PEVs) for Seattle City Light (SCL), E3 worked with SCL and five additional utilities to complete a Northwest regional analysis covering Washington and Oregon that assessed costs, benefits, opportunities and challenges for the region as a whole and for each utility. E3 investigated the value of PEV adoption from ratepayer and societal perspectives, quantified forecasted load impacts and greenhouse gas emissions, and assessed the value of managed charging in each utility’s service territory, modeling light-duty vehicles as well as taxis and car share vehicles, parcel trucks, buses, and forklifts. Overall, the study found that the region would benefit from transportation electrification through lower overall spending on energy and reduced greenhouse gas emissions. E3’s final report, completed in March 2017, contained extensive documentation for each utility.


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