Random EV thoughts.....

Despite the fact that it doesn't and couldn't happen with EVs. Not least because V2H is not allowed here.

And we weren't talking about generators. Which (as you probably know - Maybe not?) you can't connect up without informing the ESB.

Or maybe you were just being tiresome and pedantic.

It’s the voltage it would send back to the grid is the issue.
If you don’t have isolation between the generator and the grid (ie if the fuse in the ESB cutout isn’t pulled) the 230v the generator is throwing out could potentially feed back onto the grid and the LV terminals of a pole ton transformer or ground mounted sub, which will get transformed up to MV (ie 10/20KV).

It would still send voltage to the grid for a period of time until it trips, unless properly isolated.

The both of you are wrong.

Imagine your EV is a generator (which it is when you connect it via a V2L), the VOLTAGE, will feed back out onto the grid until it trips from too much load.
For The period of time it feeds 230v out onto the grid, that 230v voltage will appear on the grid if there is no isolation.
That 230v can transform up to 10KV if it reaches a transformer.
The generator/EV will trip if the load is over whatever the supply is capable of providing- but there is a time lag where the voltage gets out onto the grid before the supply trips- if there is no isolation.
An RCD is set to trip within 30 ms as that is the limit of time a body can survive without going into cardiac arrest, how do you know the load will make the supply trip within 30ms?

What if the other neighbours supply’s have been broken and disconnected from the grid so there is no load for the supply to get overwhelmed by?
So yes it can be very dangerous if there is no isolation- so not funny at all.

You just described what I said! Neighbours load would see it as a feed and overload the gen set, it wouldn't reach the ESBN traffo unless every house on the same phase had a load that was lower than the gen set.

Yes of course if there's no load it will reach the ESBN traffo.

Holy mother of god, boards at its best...

Anyone I know with a generator, battery pack or V2L just uses a trailing socket into the house from afore mentioned power source and plugs the components they want into the trailing socket. That's what I did in the last storm to get heating internet and a few lights working, didn't lose power this time thankfully.

I charged there twice recently with no problems. It just took an age to start charging. You get a message something like "Sourcing Power" but it does eventually start.

It trips if it exceeds the rated load, 3.6kW in the case of the Kia. Probably the same for others. It won't automatically restart, you have to do it manually. Basically just disconnect the adapter and reconnect.

Best to check the max load of what you're actually going to connect. People sometimes connect dishwashers and washing machines without realising that they can peak at certain times in their cycles and trip the V2L.

As I understand it - if you want to use electricity from your battery etc. in a power cut then you must have an isolator switch installed in advance. This is to prevent the possibility of electricity going back to the grid while ESB workers are working on the lines to get the supply back up. I've seen isolator switches being offered as an additional option to solar panel quotes for 2 different near neighbours recently.

Requirement for a changeover switch was never in dispute.

Ooh, I'd like one now. It's been 4 years, but still.

Unrelated I'm sure, but those 6 manufacturers advertise frequently with the Times group.

Try this: https://www.removepaywall.com/search?url=https://www.thetimes.com/world/ireland-world/article/six-best-evs-for-2025-wrqfpglbc

EX30, Q6 e-tron, Puma Gen-E, BYD Dolphin, Polestar 4 and a Mini Aceman. It’s more like a list of EV’s least likely to sell in any kind of numbers. Article written by someone called Jo Linehan.