Slow1
Posts: 487
Joined: Fri Jul 11, 2014 3:15 pm
Delivery Date: 28 Jun 2014
Leaf Number: 425010
Location: Eastern MA, USA

Re: Use of Nissan Leaf battery in Solar installation.

Mon Sep 29, 2014 1:11 pm

JeremyW wrote:
edatoakrun wrote:I wonder what Nissan will do when the first LEAF owners demands a replacement pack purchase, without giving Nissan back their OE battery pack?

They won't sell them one, simple as that. The terms of the sale dictate they give the old pack up.


Interesting. Then I wonder why they bother with the whole "$1K credit for old pack." Why not just reduce the cost of the transaction by $1K and call it a replacement/upgrade only offer. Seems like some sort of marketing baloney going on there....
2013 S with 6kw upgrade (Black)
MFD Date 12/13

edatoakrun
Posts: 5222
Joined: Thu Nov 11, 2010 9:33 am
Delivery Date: 15 May 2011
Leaf Number: 2184
Location: Shasta County, North California

Re: Use of Nissan Leaf battery in Solar installation.

Mon Sep 29, 2014 1:29 pm

JeremyW wrote:
edatoakrun wrote:I wonder what Nissan will do when the first LEAF owners demands a replacement pack purchase, without giving Nissan back their OE battery pack?

They won't sell them one, simple as that. The terms of the sale dictate they give the old pack up.


I doubt that Nissan can (legally, in many or most markets) dictate the pack return, given the lack of any such disclosure in the statement Nissan provided and required that lessees/purchasers sign.

But I don't think the question is likely to come up for me, or many others.

By the time I want a replacement pack, I expect I'll probably have other aftermarket options, which will allow me to keep my OE pack, If I want to.
no condition is permanent

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JimSouCal
Posts: 860
Joined: Tue Feb 08, 2011 12:54 pm

Re: Use of Nissan Leaf battery in Solar installation.

Mon Sep 29, 2014 1:57 pm

offpist, thanks for sharing. If you have time.... What part of earth do you reside? Are you an EE, or energy consultant, or how did you come about the knowledge and skill to complete this task? Like others, I am interested in the technology and in the future, installing a like project...

offpist
Posts: 34
Joined: Sun Mar 16, 2014 4:26 am
Delivery Date: 23 Apr 1978

Re: Use of Nissan Leaf battery in Solar installation.

Mon Sep 29, 2014 11:36 pm

I live in Norway, as mentioned before.

The technical solution with inverters optimized for increased self-consumption is already provided by SMA.
Anyone can buy it and connect in their house i guess.

All i did was implement the Nissan Leaf Cells in this system.
And when i found an BMS that could communicate with the Sunny Island then rest was just plug and play really.

I don't have a engineer background, just always been interested in electronics.

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JimSouCal
Posts: 860
Joined: Tue Feb 08, 2011 12:54 pm

Re: Use of Nissan Leaf battery in Solar installation.

Tue Sep 30, 2014 9:49 am

offpist wrote:I live in Norway, as mentioned before.

The technical solution with inverters optimized for increased self-consumption is already provided by SMA.
Anyone can buy it and connect in their house i guess.

All i did was implement the Nissan Leaf Cells in this system.
And when i found an BMS that could communicate with the Sunny Island then rest was just plug and play really.

I don't have a engineer background, just always been interested in electronics.
Thank you again. Also presume when you ski, you do so off trail....

offpist
Posts: 34
Joined: Sun Mar 16, 2014 4:26 am
Delivery Date: 23 Apr 1978

Re: Use of Nissan Leaf battery in Solar installation.

Thu Oct 02, 2014 8:57 am

Hi.
As i mentioned earlier I was considering expanding with more cells.
So today i took some calls and found a company tearing down a totaled Leaf.
They still had the battery pack laying around..
Actually he had to check if they had thrown it away yet..

So he was like, come and pick it up and you can have it for $400.
Picking it up tomorrow ;)
How great is that.

BUT he did not know the condition of the cells of course, its been laying separated from the car without charging for over a year now. So there is always the chance the pack has been flat for a while and therefore defect.

I will take it apart on the spot and measure cell voltage.
If its really low I will leave it there.

I guess there is no way to measure the voltage without opening the whole thing?

Slow1
Posts: 487
Joined: Fri Jul 11, 2014 3:15 pm
Delivery Date: 28 Jun 2014
Leaf Number: 425010
Location: Eastern MA, USA

Re: Use of Nissan Leaf battery in Solar installation.

Thu Oct 02, 2014 9:03 am

If that works out for you it could be an awesome deal!

Makes me wonder how many Leafs are in junkyards waiting for someone to just ask for the battery....
2013 S with 6kw upgrade (Black)
MFD Date 12/13

offpist
Posts: 34
Joined: Sun Mar 16, 2014 4:26 am
Delivery Date: 23 Apr 1978

Re: Use of Nissan Leaf battery in Solar installation.

Thu Oct 02, 2014 9:04 am

Oh and another thing.
The manufacturer of the BMS is asking for discharge curves @ different loads to make the calculations of SOC a bit better. Now it is a bit off.

(0.3C, 0.5C, 1C, 3 C, 5C @ 25°C) and temperature (0°C, 10°C, 25°C, 40°C @ 0.5C or 1C ).

Has anyone seen this data somewhere?

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JeremyW
Posts: 1541
Joined: Sun Nov 13, 2011 12:53 am
Delivery Date: 23 Jun 2012
Leaf Number: 19136
Location: San Gabriel, CA

Re: Use of Nissan Leaf battery in Solar installation.

Thu Oct 02, 2014 9:04 am

If it's not an S model I would love love love the telematics module. :) I'll pay for shipping and whatever they charge for the module. Maybe even VCM or something else if you can get the parts cheap.
Former 2012 SL leasee 6/23/12 - 9/23/15
Former Fit EV leasee.
Now driving Spark EV and Model 3.

offpist
Posts: 34
Joined: Sun Mar 16, 2014 4:26 am
Delivery Date: 23 Apr 1978

Re: Use of Nissan Leaf battery in Solar installation.

Fri Oct 03, 2014 10:00 pm

I went to check on the battery pack and the voltage was still 3.88V! So it should still be in good condition, an only $400.

It took me about one hour to take it apart an get it loaded i my company car, an VW caddy maxi.

Now I have fitted a total of 70 modules in my rack.
That should give me about 30 KHW of usable storage.

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