Plugging Highway Vehicles into the Electric Grid Scientific American | Electric Cars and Hybrid Vehicle - Green energy

Plugging Highway Vehicles into the Electric Grid Scientific American

8 мая 2014 | Author: | Комментарии к записи Plugging Highway Vehicles into the Electric Grid Scientific American отключены
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Plugging Highway Vehicles the Electric Grid

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SAN — The white Toyota xB parked in a corner of the vast center here doesn’t too unusual, until you notice the fat plugged into its bright front grille.

But its owners say it be the smallest unit of California’s grid. The car, a plug-in electric vehicle. has been by AC Propulsion to respond to signals the California Independent System — giving it the ability to power from its battery to the grid.

It’s on display at the annual meeting of the American for the Advancement of Science as proponents of vehicle to grid, or V2G, make their case.

say V2G could help balance the supply and demand for power, as renewable energy from sources like wind and becomes a larger part of energy mix. With cars participating, a V2G system help buffer ups and downs in production by allowing utilities storage for their excess

One car doesn’t make much said Willett Kempton. of the Center for Carbon-free Power at the University of Delaware. But when you 100 cars or 1,000 cars, you start to talk about power plants.

Kempton, who give a talk today at the meeting, originated the V2G concept in He’s also spearheading a that’s put three V2G cars on the of Delaware campus, where provide power to PJM Interconnection, operates the electric grid for of the Mid-Atlantic and Great Lakes

The demonstration project — as the Mid-Atlantic Grid Interactive Car or MAGICC — is now making in the grid, actually collecting for sending power back to said Kenneth Huber, the operator’s senior technology and principal. Whenever these are plugged in at the University of Delaware, making cash.


Well-connected make money

Here’s how it The cars on the University of Delaware are connected to PJM by an Internet connection. four seconds, PJM makes with the vehicles, allowing to signal the cars to send back into the grid in of need.

PJM is required to have 1 of its peak power on any particular day to be in frequency regulation at 60 megahertz, PJM’s Huber. At the same people are turning on load and off so we have to move our generation up and to match the load.

He compared it to a pond where comes in and out, but the overall level must remain

The advantage of using V2G to help out peaks and valleys in power and demand is clear, Huber V2G-equipped cars like the Toyota or those on the University of campus can respond almost to signals from PJM or other operators — a much response than can be achieved by production at power plants.

For the lure is the ability to generate as their cars sit unused, said.

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As a consumer, you might buy [a V2G-enabled to save on fuel, Huber Instead of paying $3 a gallon for you could buy electric at night for 60 per kilowatt hour. And while charging at that low rate, you can some money by saying, ahead and use my battery a bit.’

issues ‘down the road’

The displayed at AAAS, when in between 12-20 hours a can earn between $5-10 per day by power back to the grid, he

Vehicle-to-grid is a perfect bridge that integrates and connects the grid to the transportation system to large sectors that never been connected said Jasna Tomic, program manager for CALSTART. a group that advocates for transportation.

But there’s a long road said Jeff Stein, a of mechanical engineering at the University of

There are some fairly ramifications to this marriage is going on, he said. One is that PHEVs, you have very batteries that are being to do a lot more than what you be thinking in traditional hybrid vehicles. This puts at tremendous stress to their and durability.

That, combined the cost and size of the batteries, is a big down the road in making commercially viable, Stein He’s now exploring what he health conscious approaches to charging and discharging batteries to any harm to vehicles plugged a V2G system.

Raymond Boeman, of the transportation program and National Research User Facility at Oak National Laboratory, agreed.

We have a lot of excitement, he said, and a lot of made. But there’s still a lot to be in terms of the performance of components whether it’s the battery, the electronic system, or electric

Toyota i-Road EVs Electric Cars
Toyota i-Road EVs Electric Cars
Toyota i-Road EVs Electric Cars

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