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Born On:
14:21, 6 April 2012 (CDT)
Last Updated:
13:13, 22 August 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?


Need to add a feature to the charging station to "reserve" the parking spot. Put a blinking light or spinning light on it to show that an electric car driver is on their way to charge there. That way, regular gas cars know not to park there since someone is on their way to charge there! Otherwise if the light is off then it's OK to park there. This can be done through a web or SMS enabled service an EV driver can log in and reserve the space before they get there.

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 page for the Open-EVSE project: http://code.google.com/p/open-evse/

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