EV charging isn& t as simple as it seems why your LEAF needs …

30 Мар 2014 | Author: | Комментарии к записи EV charging isn& t as simple as it seems why your LEAF needs … отключены
Great Wall C20R EV

EV charging isn t as simple as it seems why your LEAF needs

Most observers of the electric phenomenon are under the general that you can just plug in electric car into any power and things are good. Well, to a phrase, it ain t that simple,

Somewhere in the area of 100,000 bought a plug-in electric car year. Many of those were quickly introduced to the confusing world of home stations, a mixed bag of standards and and probably more than a red tape and hoop jumping. are the growing pains of the EV industry fall mainly onto the who are adopting these vehicles.

I in the MyNissanLEAF.com forums that one new owner had a question about his installation and whether it had been right, since the electrician had apparently not bothered to ask for permits the city/county. A discussion ensued in I realized that to someone on the looking in, a lot of this terminology be confusing.

For example, what is EVSE? And why did LEAF owner need an or permits; don’t charging just plug into the Wait, someone said the charger is different?

30A has to be upgraded;

Ya, it’s a bit confusing to the uninitiated. For drivers, just the imagined to remembering to plug into the after parking at home is a big Now you’re telling them not even that easy.

are people used to just up to a pump, grabbing the spigot isn’t green, choosing 85 and 91, and pumping. It’s an adjustment. So do all these terms mean for the EV owner who doesn’t want to buy the and realize the horse doesn’t match the harness?


Home charging stations are according to the needs of the unit, is chosen based on the electric car vehicle needs and charging No two EVs are likely to have the same though most are similar. A but generally accepted standard EVSE often means the charger will require at a 40 amp circuit to do fast charging

This is not normally an issue, as homes are capable of having a that is powered by up to 50 amps, but homes will not have a 40+ amp already in place. The large, dryer plugs for 220V used to seeing in our homes are 30A plugs and so are not suitable for many stations, though there are that can use them by sacrificing speed.

To install a new charging thus usually requires an run new wiring on a dedicated circuit the electrical panel to the installation This will need to be of enough amperage to accommodate the being used. New installations permits from the city or for approval and inspection. All of this money, of course, How much on how difficult the job and where you are located.

In it can be several thousand dollars.


A new electric vehicle plug-in for charging units called has arrived. It’s been accepted by manufacturers of charging and has been in place for long that most of those offered on the market today are compliant. EVSE stands for Vehicle Supply Equipment, is a control standard for the equipment

It doesn’t necessarily need the car to be with anything, though are thanks to the SAE’s J1772 (the Model S does not use standard. but is EVSE compliant). get into J1772 in a moment.

To it, EVSE is a protocol that the charging unit to think for and to communicate with the car being The charger knows how much it can provide (via it’s electrical input capacity) at any moment. Since every EV is different, the amount that the car can may or may not be at that level. Until car owners had to know their as well as what type of and plug they were and set the charge accordingly. Manually.

With EVSE, that’s no the case.

The charger talks to the finds out its maximum input and then sends as much as it can at or below that capacity. the charger may not be able to draw load to power the car at maximum speed, other times the car may not be of accepting all that the charger can Either way, through it balances out automatically.

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This is a of breakthrough for plug-in vehicles, it eliminates the need for a lot of user and largely makes car charging and go.

J1772 is a Society of Automotive standard for electric vehicle You’ve seen these on the Nissan LEAF, Chevrolet and others. They are the round with the teardrop shape allows the top to lock into the charge port.

They five plug wires in round interface.

Looking at the with the lock at the top, the top two wires are power, the next one clockwise is for communications (EVSE), the one is the ground, and the one to the left is a safety

The Tesla Model S has a three-prong that is very different and is used by the Model S. Further, EVs sold in Japan use another called CHAdEMO, which is similar to J1772 in function, but very different with plug slots.

Many vehicles like the LEAF, of also have standard plugs for use with standard 110 outlets for trickle charging.

is complicated!

Yes, it is, but it’s relatively simple thanks to the adoption by EV manufacturers of generalized In time, as more and more get into the plug-in game, standards will become widely accepted. Dealerships in parts of the country are already old at not just selling the car, but for the charging station installation and out the paperwork required for compliance and tax as well.

Eventually, consumers will no need to think about any of themselves and can just choose the car want and, if it happens to in, be ready to do so. Often, houses now are built with 40A circuits wired and ready to go with the charger needing to be installed in the

We’re getting there, but are the changes that take and are part of the reason that vehicles are not soon going to be the large chunk of the market would hope they be.

Great Wall C20R EV
Great Wall C20R EV
Great Wall C20R EV

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