New EV Charging Rates Cut System And Driver Costs
SEPA Report: Residential EV Time-Varying Rates That Limit System Peaks; Customers on EV-Specific Time-Varying Rates are More Likely to Charge Off-Peak Compared to Generic Counterparts
November 13, 2019 (Smart Electric Power Alliance)
“Without a thoughtful approach to encourage off-peak residential charging, the predicted rapid growth in electric vehicle (EV) adoption could lead to costly distribution system impacts and infrastructure upgrades for utilities…[but EV time-varying rates effectively incentivize off-peak charging, and] customers are interested in using them…[A new analysis shows that] successful rate offerings do not necessarily require a large peak to off-peak price differential, and that utilities may engage broader segments of their customer base and achieve higher enrollment rates by offering multiple distinct EV rate options…[It also shows customers] on an EV-specific time-varying rate were more familiar with the rate rules and more likely to charge off-peak compared to their generic time-varying rate counterpart…
Where utilities have proactively developed residential EV rates, enrollment has been more than twice as high as rates that were required or recommended by customers, governance boards, or legislatures…Designing rates that save customers money, require limited up-front fees, and have limited barriers to enrollment can lead to participation rates that roughly double those of other EV rate offerings…72% of non-enrolled customers indicated that they were willing and able to charge their EV during off-peak hours if the rate resulted in bill savings and was convenient to use…EV time-varying rates are an effective first step for utilities to develop strong customer relationships and trust which can serve as a bridge between passive and active managed charging in the future…The best utility opportunity for customer engagement is immediately after an EV purchase…” click here for more
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