2017 Leaf to offer V2G: Thoughts?

[arnis]

Bidirectional charging station costs more than regular charging station. Latter costs tens of thousands, per one V2x connection.
Much much much more than "half a dozen of powerwalls".

[LeftieBiker]

There is a bidirectional unit coming to market that will supposedly cost $4000.

[arnis]

Yea sure. There are batteries coming lasting billion miles and also solar freakin roadways too.

Do you know how much Nissan Leaf 16A onboard AC-DC charger costs?
Can you estimate, how much offboard DC-AC inverter costs? And how much power does it handle

[LeftieBiker]

https://cleantechnica.com/2019/07/26/wa ... t-charger/

[Marktm]

There are several initiatives that will likely support V2X concepts at some time in the future. Nuvve is one of the leaders of aggregation software and has also supported limited hardware implementations. If EV proliferation EVer happens, the energy storage potential is simply too great to ignore (for grid stabilization, home/infrastructure resilience, business monetization, etc, etc.)

https://nuvve.com/v2g-chargers/

https://www.greencarcongress.com/cv2x/

[Dougie]

My local city-owned electric utility held a public information meeting to talk about their future strategy. We have a big problem in Colorado Springs because we held onto an obsolete coal fired plant for too long, entirely for political reasons, and now our rates are higher than Boulder. That is pretty embarrassing. So we are scrambling around to try to catch up to 21st century electricity technology.

One possibility they mentioned was a pilot V2X program. Maybe it will happen or maybe they will be swamped by other more important problems, and maybe Nissan won't enable the feature (even though it is documented in the online owner's manual on the Nissan web site), but in any case, it leaves me with a question:

What sort of electrical setup do those 4000 or whatever it is houses in Japan have? I assume you need something with a CHAdeMO connector on it, and then something comparable to the inverter and isolation unit that comes with rooftop solar. What about the breakers and GFCIs that you have already put in place, what happens to them when the electricity is going in the backwards direction?

My suspicion is that it would be tough to set up a rate structure that would make this all worth doing on a daily basis, but it might be worth it if you could run your furnace from the car if there is a grid power failure in the winter. I am more interested in what the household wiring looks like.

[LeftieBiker]

Units like Wallbox are not, AFAIK, intended for use with grid feeding setups. They could work to reduce peak grid loads, however.

I would advise against using a Leaf for V2G, ironically enough, because of the lack of thermal management.

[cwerdna]

(from July 9, 2020) Nissan Leaf trials with V2G technology in Australia
https://www.electrive.com/2020/07/09/ni ... australia/

Came across this today (from July 30. 2020):
Vehicle-to-grid trial reopens for 100 more Nissan EV owners (in the UK)
https://www.whichev.net/2020/07/30/vehi ... ev-owners/

[Marktm]

I am more interested in what the household wiring looks like.

Dougie;
Ossiaco (Canadian?) purports to have a robust V2X system (dcbel based) that incorporates solar PV, BESS, EV (CHAdeMO, CCS) and J-1772, that also can provide "blackout power" (V2H) up to 15,200 watts. Is it vapor-V2X? They claim it is available for single phase 208-240 VAC now. However, the link below shows what a split phase household wiring system would look like - when it becomes available :

https://www.ossiaco.com/wp-content/uplo ... M-v1.0.pdf