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Born On:
14:21, 6 April 2012 (CDT)
Last Updated:
13:14, 06 June 2012 (CDT)


This is an attempt to see if it's even possible to create your own SAE J1772 electric vehicle charging station.


Here is the competition: The store-bought Level 2 30 Amp 220/240 Volt wall mount charger that charges a Chevy Volt from completely dead to full in about 4 hours instead of the 8-9 hours on a Level 1 110/120 Volt charger: http://www.lowes.com/pd_382390-296-EV2430WS_0__?productId=3585682&Ntt=electric+car&pl=1&currentURL=%2Fpl__0__s%3FNtt%3Delectric%2Bcar&facetInfo=



It's MSRP is $800. Can we make it with a total lower cost than this? Can we make it so cheap that it is worth the time to actually make it ourselves?


The J1772 plug itself is about $170. $230-250 with 6-8 meters of high current cable. http://www.tucsonev.com/

Is there enough info here?: http://en.wikipedia.org/wiki/SAE_J1772

Reference off the shelf charger: http://www.bestbuy.com/site/Leviton+-+evr-green+120+Level+1+Portable+Electric+Vehicle+Charger/4826653.p?id=1218541285703&skuId=4826653&cmp=RMX&ref=06&loc=01&ci_src=14110944&ci_sku=4826653

<+opticron> more info may be available here: http://grouper.ieee.org/groups/earthobservationsSCC/IEEE_SAE_J1772_Update_10_02_08_Gery_Kissel.pdf

does this explain it? http://www.evdl.org/docs/j1772description.pdf


These might be the easiest way to do this by just following someone else's instructions!  :)

Here is an instructables link to how to make an Electric Vehicle Supply Equipment (EVSE) using an arduino: http://www.instructables.com/id/Arduino-EV-J1772-Charging-Station/

Here is another instructables link to how to make an EVSE: http://www.instructables.com/id/DIY-J1772-EVSE/

Instructions for the EVSE Arduino Sheild: http://www.instructables.com/id/Open-EVSE-Arduino-Shield/

Instructions for the OpenEVSE advanced power supply: http://www.instructables.com/id/Advanced-Power-Supply-for-OpenEVSE/

OpenEVSE Basic Power Supply: http://www.instructables.com/id/Open-EVSE-Basic-Power-Supply/


Here's the software to run it all: http://code.google.com/p/open-evse/downloads/detail?name=open_evse_fw_v0.4.0.zip.zip&can=2&q=#makechanges