mitch672
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Re: How to prep a New House for an EVSE

Fri Jul 02, 2010 8:50 pm

I am taking my prep 1 step further, I am installing a 100A 20 circuit panel for the ev charging, then it handle 2 40A EVSE breakers, or 1 larger single high power charger...
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EVDRIVER
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Re: How to prep a New House for an EVSE

Sat Jul 03, 2010 1:54 pm

mitch672 wrote:I am taking my prep 1 step further, I am installing a 100A 20 circuit panel for the ev charging, then it handle 2 40A EVSE breakers, or 1 larger single high power charger...

Good idea, when doing the work always over plan for future upgrades, it costs less in the long run.

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garygid
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Re: How to prep a New House for an EVSE

Sun Jul 04, 2010 12:44 pm

Instead of adding breakers and surface wiring (through conduit) from whatever breaker box, it is cheaper to put the wiring inside the wall, leaving it unconnected inside the breaker box if necessary. The other end of the wire should end in a (probably metal) junction box (about 4' or less high), that the EVSE will be mounted over.

Some places require a (possibly fused) disconnect "within sight" of the EVSE. Your sub-panel might be sufficient. Only your PU and Local Permit Department will know about restrictions for your specific area.

Internet cable to the wall just inside the main and sub-panels, in case you want to monitor?

Planning for PV?

Planning for the possibility of two-meter service?

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Yanquetino
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Re: How to prep a New House for an EVSE

Tue Sep 28, 2010 10:38 pm

Our new house is now almost finished: we'll be closing on it at the end of next month.

The garage is all ready for an EVSE, as you can see in this photo. The Milbank RV breaker box is on the right, already equipped with both a 120V and 240V outlet. You'll also see that my electrician hasn't installed the breakers for the EVSE in the left slots yet, but he has strung the EVSE's wire through the wall to the box.

Image

Too bad Nissan and AV won't sell me the EVSE yet. I would have really liked to include it in the construction costs, even though I can't take delivery of my Leaf for well over a year.

I spoke to AV again today about it, to plead my case. So far... no answer.

By the way, on a related note, I am installing a 7kW PV array on the roof. Almost all ready for an EV... and nothing to charge or drive. :cry:

smkettner
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Re: How to prep a New House for an EVSE

Wed Sep 29, 2010 8:37 am

Yanquetino, if the AV people came out it would still cost $2200 to install the EVSE with that setup.
I know as mine is similar (no RV box just 14-50R). No need to pay the $100 sucker fee, get a waiver.
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EVDRIVER
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Re: How to prep a New House for an EVSE

Wed Sep 29, 2010 8:40 am

What gauge is that white romex?

smkettner
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Re: How to prep a New House for an EVSE

Wed Sep 29, 2010 8:46 am

Sure looks like #14 white. Needs to be #12 (yellow) minimum and 20a breaker. AV and many units need #8 (black) & 40a breaker.
I think my colors were wrong. #10 is orange. #8 & #6 are black.
Last edited by smkettner on Wed Sep 29, 2010 2:01 pm, edited 1 time in total.
1 bar lost at 21,451 miles, 16 months.
2 bar lost at 35,339 miles, 25 months.
LEAF traded at 45,400 miles for a RAV4-EV
RAV4 traded in for I-Pace Dec 2018

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EVDRIVER
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Re: How to prep a New House for an EVSE

Wed Sep 29, 2010 8:57 am

If the stud openings are large enough I would pull a larger wire to future proof. That is a 15-20 minute EVSE installation job.

Yanquetino
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Re: How to prep a New House for an EVSE

Wed Sep 29, 2010 9:29 am

smkettner wrote:Yanquetino, if the AV people came out it would still cost $2200 to install the EVSE with that setup.
I know as mine is similar (no RV box just 14-50R). No need to pay the $100 sucker fee, get a waiver.
Huh. I wish! I can't do either, since I am at least a year away from being able to even order my Leaf. What I am asking AV is that they simply sell me one of the EVSEs, and ship it to my contractor. There are no "AV people" anywhere near my area, but installing a 240V appliance is not rocket science to my licensed electrician: he is doing the same thing for a steam shower, two air conditioners, an oven, and a dryer outlet. And the city has to inspect his work, regardless, before we are issued a Certificate of Occupancy for the new home.
EVDRIVER wrote:What gauge is that white romex?
Not sure, and the house is 300 miles away, but I'll ask the electrician. He used AVs own specs, so I would imagine he used their recommended gauge. If not... he'll obviously have to change it. Don't be fooled by the white color, however. An earlier photo of just the framing shows black wires running to and from the Milbank:

Image

After that, the painters evidently painted over it when spraying the garage walls:

Image

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EVDRIVER
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Re: How to prep a New House for an EVSE

Wed Sep 29, 2010 1:57 pm

OK- looks good. Ask them to push the wire back to where the staple is, patch the hole in the wall and get your final. Make note of the location and in a year or whenever cut a small hole and bring the wire in, then it should talk 10 min to install it. If you don;t need an EVSE now, which you don't then wait as you will have many better options. Have the wire off the breaker and call it a spare with no connection, the inspector will sign off and you will likely be happier in the end. I have done this on more than 30 inspections, it's common practice and not a big deal if there is no wire stubbed out.

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