Utility Electric Vehicle Supply Equipment (EVSE) Return on Investment Incentive

Utilities may petition the Washington Utilities and Transportation Commission (UTC) for a rate of return on EVSE installed for the benefit of ratepayers. The UTC may approve an additional 2% to the standard rate of return if the utility installs EVSE on a fully regulated basis similar to other capital investments behind a customer's meter, and the expenditures do not increase ratepayer costs more than 0.25%. To be eligible for the incentive, utilities must install EVSE in locations where vehicles are likely to park longer than two hours. EVSE must be installed after July 1, 2015, and all claims are subject to an EVSE depreciation schedule. After the equipment has fully depreciated, the utility may gift the EVSE to the owner of the property. The UTC issued a report on the use and impacts of the incentive on December 1, 2017. (Reference Revised Code of Washington 80.28.360)