Bolt = Big battery?

[baskinginthesun2000]

I have been trying to find out if it is possible to use the bolt as a battery for a solar system. The idea is to connect the bolt's battery through the dc fast charging port to the inverter's battery terminals. Think the bolt's battery is around 400V and the inverter also works at 400V DC. The current draw should be 25A max, and probably a thrid to half of that as max normally.

Not trying to charge the battery, just use it for emergency use during blackouts. Though would imagine the bolt has a battery charger to charge the battery from the regenerative braking. However, a simple blocking diode should prevent charging the battery from the solar array. I could use the regular 7.2kW AC charger for that.

Would anyone know the answers to any of these doubts?

1) Would the bms prevent you from drawing power from the battery, when the car is off? I assume the bms draws power from the battery itself and would be active.

2) The High Power Distribution Module seems to connect the dc fast charging port through a contactor to the battery bus. Do you need anything special to activate the contactor?

3) If you can draw power from the port, any time limitations, like with the 12V system? Maybe current limits?

Did I miss something else?

Don't want to use the 12V system using a regular inverter for this. Wouldn't work to power the whole house. It has to be the 400V system.

 

[SparkE]

- i don't believe that the (current) CCS/SAE standard supports what you are trying to do . (The CHAdeMO std does, BTW).

 

[AyeJay]

Nissan presented it's 'L2H' system years ago which seems to have been left to languish for now ..

https://www.greencarreports.com/news/1079955_nissan-leaf-to-home-power-station-will-it-make-it-to-u-s

AJ

 

[baskinginthesun2000]

would imagine most v2h include inverters and other hardware. I just need to connect to the battery. As long as the car doesn't put any limitations on drawing current from the battery, it probably would work.

I know that css 3.0 will allow bidirectionally, but what happens if you try to draw current from the bolt?

 

[baskinginthesun2000]

Was pointed towards the faq

as a rule of thumb,pre-2021 CCS vehicleslike the Chevrolet Boltare notcurrently supported

Usually don't accept negatives at face value, since things aren't always as black or white as they say. '21 are coming out soon, so will keep my fingers crossed

However, seems my idea is right on the money. They basically are doing the same

What stationary batteries is dcbel™compatible with?dcbel™is compatible with all batteriesthat have a 400V DC nominal voltagelike the LG Chem RESU

So I guess I will need to wait a bit more. Hopefully, by then ev will be cheaper, and doing this will be easier. The bolt sounded like nice car from the engineering point of view. I'm surprised gm did such a good job with it.

 

[BoltEV]

I purchased and installed the EVExtend system/inverter and have the utility of 1,000 watts of power if/when a long power outage ensues here in Los Angeles to run my refrigerator and a few LED lights.

https://www.evextend.com/Chevrolet-Bolt-Inverter-Kit.php

 

[baskinginthesun2000]

I purchased and installed the EVExtend system/inverter and have the utility of 1,000 watts of power if/when a long power outage ensues here in Los Angeles to run my refrigerator and a few LED lights.

https://www.evextend.com/Chevrolet-Bolt-Inverter-Kit.php

Thanks. Actually I'm looking at the ev as a battery for my solar inverter. Currently, my system can handle outages during midday hours but would be nice to be able to extend this to nights and low irradiance hours. Also for long durations, we had a few blackouts that lasted a few days.

 

[summit]

It's coming soon, the FAQ says that current CCS can't support bi-direction but next generation will.

Solar PV inverter/charger V2G:

https://dcbel.ossiaco.com/

 

[BoltEV]

It's coming soon, the FAQ says that current CCS can't support bi-direction but next generation will.

Solar PV inverter/charger V2G:

https://dcbel.ossiaco.com/

Looks like so much versatility! Do you have any idea what this will sell for?

 

[summit]

I think between $4-5K, plus $1-2K for the Black-Out option (probably for the transfer switch etc...). The web site is not really user friendly, yet. But here's a link to their June Faq:

https://www.ossiaco.com/wp-content/uploads/2020/06/dcbel-by-Ossiaco-FAQ-v1.1.pdf

I also find this blurb on solar-PV informative:

https://www.ossiaco.com/wp-content/uploads/2020/06/dcbel-by-Ossiaco-Solar-Guide-V2.2.pdf

Solar DC grid-tie inverter runs around $2-3K, so the pricing isn't too bad considering it can do grid-tie plus V2G.

I've been using the Bolt as black-out power source, via a 12-v inverter; but haven't figured out how to prevent the Bolt from auto-shut-off after about 2 hrs. The rubber band trick for the Volt doesn't work for the Bolt. May be somebody can chime in ?

Thanks

 

[Kevhearn]

I often wondered if I could run a small 12 v inverter off my bolt 12v battery in case of emergency . I imagine you keep your amp draw on the dc side of inverter within the exceptable charging amps of the bolts 12v battery system. I will also look into the possibility of extending or disabling the 2 hr max shutdown of the bolt . It’s troublesome to me when I sleep in my car when iam on call and like the ac running in summer

 

[cwerdna]

I often wondered if I could run a small 12 v inverter off my bolt 12v battery in case of emergency . I imagine you keep your amp draw on the dc side of inverter within the exceptable charging amps of the bolts 12v battery system. I will also look into the possibility of extending or disabling the 2 hr max shutdown of the bolt . It’s troublesome to me when I sleep in my car when iam on call and like the ac running in summer

There are several workarounds for the stupid timeout and auto shutdown. I mentioned one at https://www.chevybolt.org/threads/using-ev-bolt-battery-for-powering-home.32969/page-2#post-520812.

Someone else in a FB group suggested another simpler one but I'll need to find it again and try it the next time I have an extended outage.

I had to run my fridge, some lights, laptop and other stuff for over 24 hours at a time via my Bolt an inverter off the 12 volt bus w/the car in READY mode "thanks" to two PG&E PSPSes we had last year.

Nissan presented it's 'L2H' system years ago which seems to have been left to languish for now ..

https://www.greencarreports.com/news/1079955_nissan-leaf-to-home-power-station-will-it-make-it-to-u-s

Yeah, n/a in the US but over 7000 of these systems installed in Japan as of late 2017. See my pointer at https://mynissanleaf.com/viewtopic.php?p=504949#p504949 about that figure.

I have some other pointers for Nissan's and Mitsbushi Motors's efforts at https://mynissanleaf.com/viewtopic.php?p=571901#p571901 including what I saw at Tokyo Motor Show 2019. A copy of the PDF I pointed to can be found at https://web.archive.org/web/20171011110138/http://www.evs28.org/event_file/event_file/1/pfile/EVS28_0224_EconomicPotential-V2H-Japan.pdf.

There are numerous V2x boxes for CHAdeMO: https://www.chademo.com/products/v2x-product/.

 

[summit]

I have an external 12v pack, to which the DC/AC inverter is connected to power critical loads. That external 12v pack is replenished by the Bolt's 12v via a jumper cable for fast power dump, or through a boost charge controller.

 

[BoltEV]

I have an external 12v pack, to which the DC/AC inverter is connected to power critical loads. That external 12v pack is replenished by the Bolt's 12v via a jumper cable for fast power dump, or through a boost charge controller.

Isn’t that perpetual motion??

 

[summit]

[/quote]
Isn’t that perpetual motion??[/quote]

no, energy flows from main HV pack to 12v aux to external 12v to house. Eventually the Bolt big pack gets depleted, then I have to make a run into town to "refill"