Study: Consumers want optimized charging, renewables, V2G

Chevy Volt Charging Plug-in 1

A national survey of consumer attitudes towards plug-in vehicles suggests that people would prefer control to convenience in many charging scenarios, and that most want to be able to choose renewable energy.

For “Consumer Preferences for the Charging of Plug-In Electric Vehicles,” researchers Brandon Schoettle and Michael Sivak of the University of Michigan Transportation Research Institute gathered responses from 542 people. A majority of the respondents had never owned or ridden in an EV, but 17% had some prior experience with the technology.

Among the findings:

To manage the costs and electricity demand at home, 73% of people would elect optimized charging as opposed to on-demand charging.

65% said they’d prefer to prioritize renewable energy sources.

84% expressed interest in V2G technology, which would enable them to feed electricity from their vehicle to the public grid in exchange for reduced rates or other compensation.

“We noticed that people tend to prefer the things that give them the most control, rather than the most convenience,” Schoettle said. “For example, respondents seemed to think that a traditional cable was the best way to recharge, even though inductive wireless charging could enable a self-fueling vehicle. A person wouldn’t be required.”

The researchers also compared the ability of current regulations to support various charging scenarios, and found that not all regulatory standards would currently support consumers’ top requests.

“A system that operates correctly, yet fails to satisfy the preferences and expectations of the PEV users, may end up limiting future acceptance of such systems and PEVs in general,” the report states. “Potential future uses of PEVs to enable self-fueling of self-driving vehicles may be problematic or unfeasible without the support for scenarios such as plug-and-charge and eVehicle roaming.”


Source: University of Michigan via Green Car Congress

  • jstack6

    V2G Vehicle to GRID is out and working in Delaware and California. Why let a car site idle 20+ hours a day, put it to work.

    QUOTE=84% expressed interest in V2G technology, which would enable them to feed electricity from their vehicle to the public grid in exchange for reduced rates or other compensation.

    • Ramon A. Cardona

      Sorry but 8 to 30 k/watt hr batteries will hardly “support” much of anything otherwise why feed the grid when the house can use “excess” power like a Tesla home battery? I am missing something?

      • Tom Moore

        With V2G, we could use the car battery to operate essentials like a refrigerator during a power outage, instead of having a $1000 generator on hand. It probably could be automatic. If the battery were made available to the grid when unused, the grid could use it to buffer demand and restore the power later when it isn’t needed. We need to get creative but V2G is a first step.

        • jstack6

          Tom, Right in the Univ Of Delaware system they get paid $1,200 just to be plugged in , even if they don’t end up sending any power back to the GRID. Your car sits 20+ hours a day for most people. Why not put it to work. A KEY is to have a good cooled long life battery pack. Not a LEAF with no cooling and short life.

  • Ramon A. Cardona

    This study is pointing to the unique political format of the US: no central government. 50 states, 1 federal region. Thousands of power companies and thousands of counties with “codes” and fees and paperwork requirements. Add federal energy and environmental and transportation departments and sprinkle cities into this melee to get a glimpse of the issue. The only car company that offers one type of charging nationwide? Tesla. No wonder citizens are confused.

  • Tom Moore

    The current patchwork of competing and largely incompatible networks, each determined to enforce brand loyalty and damn the inconvenience to consumers, is a huge obstacle to the entire industry. Would you join a separate club and place on file a credit card with each of them, to get gasoline for your ICE car in diverse locations? This situation builds into the infrastructure a presumption that EVs are only for local use, making it extremely difficult to get beyond that limitation. Tesla points the way out of this bind.