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Vehicle to grid?

Discussion in 'Tech Talk' started by Dave Thomas, Jul 23, 2017.

More threads by Dave Thomas
  1. Dave Thomas

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    I just had a Powerwall 2 installed and no one who did the install seems to know about vehicle to grid. What's the point in having 100 kw/h of power (my exsisting Chevy Spark and my future Model 3) laying around if you can't use it? Has anyone heard of how they are going to work it?
     
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    • SoFlaModel3

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      Sorry just to make sure I understand the question -- are you asking about your Model 3 charging the Powerwall battery?
       
    • AEDennis

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      Tesla specifically does not support V2G.

      Nissan Leaf does (over DC And AC) as well as the BMW/Mini E test fleet (over AC).
       
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      • dudeman

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        I heard JB talked about this. Apparently there are regulatory issues of customers "feeding" in power that might have been generated off-premise. Car cells are also not designed for that kind of use. The power wall cells has slightly different chemistry for daily charge discharge cycle.

        I wonder if regulators are ok with leaf than why not with tesla.
         
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        • dudeman

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          • AEDennis

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            Just because a vehicle is capable doesn't mean that it is approved to do so.

            My point in that list is to show the list of capable EVs that I know.
             
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            • garsh

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            • arnis

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              I'm pleased to hear Mr Straubel is thinking exactly the same as I do. V2G is a bad idea.
              But Dynamic Charging (I called that PauseOnDemand function) is a very good solution due to multiple engineering reasons, some of which JB mentioned.

              Also I like the name.

              Adding anything to vehicle that raises the base price but allows "special" emergency power withdraw is not reasonable.
              Though there is nothing wrong with using 3rd party inverter to charge your laptop or run the fridge in case of extreme rare event
              of long-lasting power outage. All we need is a good cigarette lighter socket. My BMW has one with 30A fuse. Up to 400W therefore.
              Leaf on the other hand has only 10A socket. Likely the wiring is thin too.
              It would be extremely awesome if Tesla added their own cigarette lighter inverter to their shop. Just for those worried customers.
               

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