[JoeReal]

A couple of months ago, I started to use the link that I got from OnStar:

secure.myvolt.com/web/portal/home

After logging in using the same username and password for their old my.chevrolet.com portal, I found several other information not found previously. The layout screen is different.

I clicked on the View Charging Details, scrolled down to the bottom of the pop-up screen, selected the 30-day history, and then I download the charging history. It doesn't give you daily details for the 12-month though.

The last two columns on the spreadsheet, I calculated them to determine the actual duration in decimal hours and the average charging power used during the recharging.

I can play with this data a lot!

 

[Shivetya]

well its nice to know I am recharging 13/14 kw in 4.5 hours on average.

 

[TurboFly]

Yep...after 3 years they finally have it working. It's the first time I see my full charging data. Pity my OnStar sub is expiring at the end of this month...

 

[matthias]

This is pretty great! I hadn't found a watt-meter I trusted with 12A sustained yet, so it's really great to have a log of how much the car has contributed to my bill each month (side note: the heaviest month was April, at a "whopping" $25.70 added to my bill in exchange for $65-70 of avoided gas).

It looks like I can only get per-session data for the past 30 days. Anyone know if you can get that data over a bigger window?

If not, looks like I'll need to scrape it regularly. I'd like to be able to dig down to correlate against weather, etc. Hopefully it won't be too bad to automate.