chris1howell
Posts: 648
Joined: Tue Aug 10, 2010 1:40 pm
Delivery Date: 15 Jun 2011
Leaf Number: 4122
Location: Lancaster, Ca

OpenEVSE - Open Source Charging Station

Thu Oct 27, 2011 3:31 pm

I started a Google Code Open Source project for the "OpenEVSE" based on the DIY EVSE http://www.mynissanleaf.com/viewtopic.php?f=26&t=2736
I just started populating the site with info and a basic schematic. There is much more to come...

Take a look and contribute if you can.

http://code.google.com/p/open-evse/
Last edited by chris1howell on Sun Oct 06, 2013 2:09 pm, edited 2 times in total.
2011 LEAF: Red SL #04122
2012 Tesla Model S #01530
EVSE: OpenEVSE, 30A L1/L2 -- http://code.google.com/p/open-evse/
PV System: 28 x 210W -> 5.8 kW DC

OpenEVSE Store: http://store.openevse.com

KevinSharpe
Posts: 418
Joined: Thu Jul 07, 2011 3:10 pm
Delivery Date: 07 Jul 2011
Location: Frome, UK

Re: Open EVSE

Fri Oct 28, 2011 9:23 am

many thanks Chris... this is a fantastic step forward for us all :)
Investor/Tinkerer in Biomethane, Electric Transport, Hydrogen, Hydropower, Solar, Wind & Wave.

http://about.me/kevinsharpe

User avatar
LeafTalk
Posts: 76
Joined: Tue Nov 02, 2010 1:40 pm
Location: Manchester (UK)
Contact: Website

Re: Open EVSE

Fri Oct 28, 2011 9:39 am

This is great news. Thank you Chris.

I think this is going to be a game changer. :)
http://www.LeafTalk.co.uk The UK forum for Nissan Leaf enthusiasts and owners

adric22
Posts: 2488
Joined: Fri Apr 23, 2010 2:40 pm
Delivery Date: 05 Apr 2011
Leaf Number: 000768
Location: Fort Worth, TX

Re: Open EVSE

Fri Oct 28, 2011 12:00 pm

So you could build your own EVSE? That sounds great but wouldn't the J1772 connector still be the most expensive part?
2013 Blue Nissan Leaf SV
2012 Summit White Chevy Volt

chris1howell
Posts: 648
Joined: Tue Aug 10, 2010 1:40 pm
Delivery Date: 15 Jun 2011
Leaf Number: 4122
Location: Lancaster, Ca

Re: Open EVSE

Fri Oct 28, 2011 12:04 pm

Today the cable is the most expensive part, once they are more common the premium price should come way down. The rest of the EVSE can be built for under $100.
2011 LEAF: Red SL #04122
2012 Tesla Model S #01530
EVSE: OpenEVSE, 30A L1/L2 -- http://code.google.com/p/open-evse/
PV System: 28 x 210W -> 5.8 kW DC

OpenEVSE Store: http://store.openevse.com

KJD
Posts: 1348
Joined: Sat Jan 22, 2011 11:06 am
Delivery Date: 08 Dec 2011
Leaf Number: 15656
Location: SLC, UT
Contact: Website

Re: Open EVSE

Fri Oct 28, 2011 12:24 pm

adric22 wrote:So you could build your own EVSE? That sounds great but wouldn't the J1772 connector still be the most expensive part?


Yes the J1772 plug is an expensive piece.

http://www.tucsonev.com/index.html
2012 SL Delivered 12/08/2011
Sold 05/12/2015
2012 Tesla Model S 85

User avatar
johnr
Posts: 881
Joined: Sun May 02, 2010 2:08 pm
Delivery Date: 11 May 2011
Leaf Number: 2151
Location: Exeter, CA

Re: Open EVSE

Fri Oct 28, 2011 1:56 pm

KJD wrote:
adric22 wrote:So you could build your own EVSE? That sounds great but wouldn't the J1772 connector still be the most expensive part?


Yes the J1772 plug is an expensive piece.

http://www.tucsonev.com/index.html


Not necessarily. Apparently you can import them from China for about $50, or even less in quantity. Not sure about shipping or tariffs though, and there's no way to know if it would fit well except to buy one and see. http://www.alibaba.com/product-gs/49035 ... ug_CE.html
My max efficiency: 200Wh/mi (5.0 mi/kWh)

First electric car to Mineral King? viewtopic.php?f=31&t=4952

Adapters for upgraded Nissan EVSE

KevinSharpe
Posts: 418
Joined: Thu Jul 07, 2011 3:10 pm
Delivery Date: 07 Jul 2011
Location: Frome, UK

Re: Open EVSE

Sat Oct 29, 2011 1:05 am

johnr wrote:Apparently you can import them from China for about $50, or even less in quantity. Not sure about shipping or tariffs though, and there's no way to know if it would fit well except to buy one and see.
The problem is that the quality varies enormously between vendors... I've been told about a J1772 plug that got stuck in a Leaf and required disassembly of both to remove it.
Investor/Tinkerer in Biomethane, Electric Transport, Hydrogen, Hydropower, Solar, Wind & Wave.

http://about.me/kevinsharpe

User avatar
surfingslovak
Vendor
Posts: 3807
Joined: Mon Jun 13, 2011 1:35 pm

Re: Open EVSE

Sat Oct 29, 2011 1:21 am

KevinSharpe wrote:The problem is that the quality varies enormously between vendors... I've been told about a J1772 plug that got stuck in a Leaf and required disassembly of both to remove it.

Kevin, I'm wondering what happened to the vendor quotes you were getting for the J1772 connector. I would only recommend Dostar, if we could not get a more reputable vendor to supply us. Problem is that most of them are geared towards volume orders and corporate clients.

KevinSharpe
Posts: 418
Joined: Thu Jul 07, 2011 3:10 pm
Delivery Date: 07 Jul 2011
Location: Frome, UK

Re: Open EVSE

Sat Oct 29, 2011 1:49 am

surfingslovak wrote:Kevin, I'm wondering what happened to the vendor quotes you were getting for the J1772 connector.
Most of the vendors want very large volume commitments and that's proving difficult for us because in the UK the government has now committed to using "mennekes" connectors on our charging stations.

We have therfore manufactured a 32A mennekes-to-j1772 cable which is being tested by a number of Leaf drivers in the UK. Here's one being used yesterday;

http://www.leaftalk.co.uk/showthread.php/4688-Testing-Ecotricity-s-charging-points

We are making some minor changes to the cables based on the feedback we have received and will manufacture a new version early next year with a target retail price of £200 (~$320) initially. I fully expect this price to drop during the year.

I'm not sure that I can help you in the US because we are no longer planning to buy just J1772 connectors but rather complete cables...

surfingslovak wrote:I would only recommend Dostar
They do make good products... only problem I have with them is the lack of a locking mechanism at the car (something we've had requests for).
Investor/Tinkerer in Biomethane, Electric Transport, Hydrogen, Hydropower, Solar, Wind & Wave.

http://about.me/kevinsharpe

Return to “EVSE / Charging Equipment and Networks”