Might this be the future?

Hi Folks,

I've just watched this video: https://www.youtube.com/watch?v=Tk-ON-SKB8c

If I've understood it correctly, some Aussie startup has created a box that takes DC from an EV and passes it to one of the string inputs on a pre-existing inverter. What a simple solution! No new logic or H/W needed in the car, no need for new/duplicate inverter-type logic to match converted DC to the correct waveform for the grid. All that clever bit is done by the existing inverter, all the new box does is take DC from the car and pass it to an existing system. It feels brilliant to me, similar to what Sigenergy have done but without the proprietary lock in.

What do the intelligent folk in this community think about this?

BobB sounds I bit like the DC coupled inverter I had on my first Givenergy hybrid.
That was an inverter that you connected the PV panels to at one end - the Givenergy inverter PV inputs at the other - and in the middle sat a stack of Pylontech batteries.

If PV was greater than the house load, it syphoned off PV into the Pylontech stack. If house load was greater than PV then it brought the Pylontech 48V upto the strong voltage and discharged it into the Givenergy inverter. (So basically you had 'fake' extra panels for all the Givenergy could see)

Kind of hard to explain but it's called a Goodwe GW2500BP.

The one you posted seems to work similar but without the need to boost from a low battery voltage.

That Aussie dipthong thing does my head in whenever I have to listen too long 😃

Seems eminently sensible although we'll have to see what happens to vehicle battery warranties as they're not going to be idle for 90% of their life. They've obviously thought about that, but relying on insurance to pay out on a battery whose warranty you've voided seems unlikely to work.

Vestas And the car battery issue might be a reason that some ev owners may choose not to use their ev battery to power their house. And car manufactures could choose to limit your ability to export dc from the car.

Maxwell I'm not convinced most EV owners will care... the majority of EV owners are company car drivers who will renew their lease in three years. They will be happy to charge to 100% and thrash the battery knowing it'll last at least three years... What may happen in reality is that the problem (if any - it's a VERY slow discharge for the car) will be passed to subsequent owners.

Limiting DC export might be a thing, but again. cars can deliver hundreds of kW. my inverter gets maxed out at 3!