schonelucht
Well-Known Member
Wondering if Tesla would be more open to this scenario now that it isn't possible anymore to fill up at the superchargers for free and then go use that energy for anything else but driving.
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There are technical issues. The car's battery is DC at 400 Volt. The grid is 240 Volt AC. In order to feed power back, you would need an inverter that is grid tied. It would also have to have an automatic off feature in case the power company needs to turn off the grid power in one area to do work. There can't be a source still feeding into the grid in these situations. Solar inverters do this but the car does not have the hardware to do that. So without an external inverter it's not going to happen.
The concept is definitely going to happen in the future, but either the current hardware in the Model S or X today, it's not possible.
Also interestedGetting closer! Because this is a "back burner" project, it's taking longer than expected.
The Tesla plug is even harder to source (or manufacture) and it would also preclude use while driving, which is how I mainly use my prototype inverter.
That being said, you can extract power from the charge port.
I wonder if these are recalled ones/ defective ones. But guess it will not matter as if KW is low enough.I have hundreds of the Tesla plugs with 9" of cable.
I wonder if these are recalled ones/ defective ones. But guess it will not matter as if KW is low enough.
I think you're busy with other projects, but I'm still interested in this. Would this solution work with my November 2016 build Model X? Also here in Japan many people are familiar with the Vehicle To Home (V2H) technology and would be interested in this as well.Getting closer! Because this is a "back burner" project, it's taking longer than expected.
I've got an Inverter in development that can perform this function. The prototype can put out up to 3kW peak and around half that continuously. It provides a pure sine wave, and runs directly of the high-voltage battery. It also has greater than 95% conversion efficiency and is very small.
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If you read the description on the linked site, it is configured for battery first and when the battery gets too low it fails over to the grid. I suppose it must also shut down and fail over to grid if it overheats or there is excessive draw. It must have a complete drop to blackout when switching because I'm guessing they don't do frequency cycle matching like the PowerWall does.Wow... that is... tempting. It's about 2x the cost of putting a generator in my house, which I have been considering. I wonder how much the local guys would charge for installation.
I also wonder how seemless the switchover is? Is there a brownout during switchover, or can I plug in/unplug my Tesla without worrying about the power to the house sagging?
Additionally, it says a full battery pack, but doesn't mention if the pack needs to be out of the car (ala a Powerwall style), or if I can just use the port on the car itself with an appropriate cable.
I'd be also interested to know if it has the smarts to switch over to grid power if the current draw exceeds its capacity? That would seem to be a critical component of making this thing work for daily usage. If you are just using it for emergencies, I guess it doesn't matter much.