First link is a year old, second one is broken, third one is also a year old roadmap.  But thanks for trying.

Where you at? I'm just curious cause I know different search results appear depending on region. I'm using google from CA and my results show this:
#2
Has anyone thought of using the Bolt as a powerwall when you are not driving? I would think for a retired family using the 60 KW to store the excess from solar or off peak hours looks interesting. A car is only used 5% out of the day. Whay not use it for more than transportation.

If you had a small reserve battery to run the house when you are using the Bolt when away.
I think the Japanese are starting to do this.

I wonder how the battery would holdup for this use.

My 16 KW iMiev might have a second life as a powerwall at the house. I paid less than 1/2 of what a new 16 KW battery would cost.

I would think that a solar household with 2 ev's would never need the grid or use it very little.
PV1
Re: Bolt as a Powerwall
Quote
Thu Aug 03, 2017 3:27 pm

V2G is one of the things that get talked about endlessly, but I'm not sure we'll ever see it in the US.

Mitsubishi's M-tech Labo has a rather neat setup of wind, solar, stationary, 2nd life EV batteries, and a fleet of i-MiEVs. The system favors the stationary batteries to try and keep the cars charged, but it will use the car batteries when needed. A condensed setup like this would be perfect for a house. I envision that you specify a set charge level that you want the car to always maintain (say 50% charge) and the system will freely use the capacity above this setpoint when the stationary battery isn't enough. You may leave the house with more range than you programmed, but not less, at least if you don't override it to keep the lights on 😕 .

The stationary battery wouldn't need to be that big with a Bolt plugged in. Maybe an old i-MiEV or Smart ED pack would work well (or two EVs where only one is driven at a time).
2012 i-MiEV ES with quick charge - White
2012 i-MiEV ES with quick charge - Silver
2017 Bolt EV LT - Orange Burst

11.8 kW Solar Array
User avataroilerlord
Re: Bolt as a Powerwall
Quote
Thu Aug 03, 2017 3:38 pm

I've sent a lot of time researching, and learning about how to convert an EV's ~24 kWh battery pack into a DIY powerwall. There are a lot of videos on YouTube, and even some that suggest it's VERY easy to do - but it isn't, and not exactly easy to tie into a solar array set up with microinverters. Also, you're dealing with high voltages that can cause serious harm, so it isn't exactly a learn-as-you-go DIY project.

Here's a pretty good video that lists what's involved in setting up battery storage that I think was done right.

https://www.youtube.com/watch?annotatio ... kXTqNqxK3s

After watching it, and pricing out the components, I'm quite convinced it isn't worth the time or expense, just like a Powerwall isn't worth it either - especially if you live in an area with cheap kWh's. While it's a fantastic concept, I can't see it every paying for itself as things break down, and batteries are, by design, consumables.
2014 Mercedes B-Class Electric Drive
2012 VW Jetta Sportwagen (not-so-clean-diesel) TDI
2008 BMW X3 3.0 "Beatrice"
2004 BMW 330Xi Sedan
My 9.2kW DC Solar: https://easyview.auroravision.net/easyview/index.html?entityId=7466210
redpoint5
Re: Bolt as a Powerwall
Quote
Thu Aug 03, 2017 5:05 pm

Since the battery is such a large expense on an EV, it makes sense to have it serve multiple uses. Some households have a generator to provide emergency power when the grid is down. It would be neat to have an EV battery take the place of the generator.

If EVs were designed with 2-way power in mind (drawing from, and feeding to the grid), I doubt the added expense would be very much. I wonder if the same charging circuit, with a little modification, could invert the DC energy and feed it back to the grid?

It would be very cool if EV owners were given an incentive to opt in to supplying the grid during peak periods to help load balance. Perhaps an app that notifies the owner of an upcoming peak, and gives them the option to sell their electricity at the higher price.

On a tangent thought, a pilot study was done between the utility and some i3 owners that notified them of peak demand and gave them the option to delay charging their vehicles.

https://www.pge.com/en/about/newsroom/newsdetails/index.page?title=20161114_pge_and_bmw_partner_on_next_phase_of_pilot_studying_advanced_electric_vehicle_charging_
PV1
Re: Bolt as a Powerwall
Quote
Thu Aug 03, 2017 5:17 pm

Cars with DCQC already have the capability. Those two big pins run through a contactor straight to the battery. The only thing they might need is a firmware update so the car can recognize V2G/V2H connections.

An off-board inverter/charger could handle both charging the car and running the house from the battery. DIYing something actually might not even be that difficult if you can find a system that can handle a 350-400 volt battery bank. However, you definitely need to know what you're doing and how to handle high voltage before attempting anything like that.

#3
result of my recent article about the fading of the CHAdeMO standard for DC charging, the question has arisen – “so what happens to V2X with the demise of CHAdeMO?”

(‘V2X’ by the way stands for Vehicle to Grid or Home. It is the combination way of referring to the capability to use an EV battery bi-directionally to feed the home and/or grid as well as charge it).

Currently only CHAdeMO is certified – in some countries – to do this. In fact, CHAdeMO has long been touted as the only DC standard that does it as a marketing point of difference to CCS. Therefore – does the demise of CHAdeMO end the future for V2X?

The short answer is “no, but it may be delayed a little bit”. CharIN (the consortium supporting CCS) actually has a roadmap for implementing V2H and then V2G into the CCS standard. (This is shown in figure 1).

road to v2x charin
Figure 1: Roadmap to CCS V2X capability. Source: CharIN

This roadmap for CCS to reach full V2G capability is expected to be completed by around 2025. As you can see – there are many issues to overcome if level 4 (V2G) is to become truly ubiquitous – and that applies to CHAdeMO too!

Ah, thanks, it actually loaded today. Looks like people just talking about possibilities a few years ago, not related to whatever Scotty was talking about this month. He made it sound like there was an official announcement from GM. Which will be a big deal, because I don't think any EVs natively do this right now. The Leaf was supposed to support it as of last year, but I don't know if that happened. Seems like we're getting close.

The closest thing I saw was a CNN article but I couldn't find an official "official" source of said announcement. Personally when it comes to Nissan and GM, I'm pretty sure they are playing catch up with other EV's. While V2G/H sounds like a good idea, idk how the car would support say an energy spike. Interested in the concept though if it does come to pass