That is some amazing work.
I mean I think it is... I understand very little, but it sure looks great

Way to kill a conversation.

Hi

I've got a similar project on the go. I'll be trying to put the motor, inverter, bms, heater, dcdc, 230v and chademo chargers into a 1958 Peugeot 203.

So like you I am trying to eradicate several entire systems whilst maintaining functionality.

I believe it will be extremely complicated ...

Don't think this is quite the right place, but I don't care.

No pro here, so ignore anything I have to say.

They seem like very nice modules for stationary storage...

Almost as though they were designed for that!

70kg for 6kWh is very heavy. Just as a guide, Leaf 0.5kWh modules from the oldest ...

750 tonnes is a lot. If you read everything you'd see that it would be in 15 tonne blocks... So not all 750 at the same time. Thankfully

Ahh the details and the devil. Yes indeed.

Every project needs caution and solutions in equal measure I guess. So rock on.

The flywheel is indeed a studied concept. But I am not going anywhere near it. Even for home store the speeds are ferocious and I think anyone considering it should be working ...

I should have qualified my statement on the 10% loss by saying that actually that is very good of course. The problem is having to count it twice whilst also adding maybe another 10% for frictional losses. Then a battery where you only get out two thirds of what you put in is not looking so sexy ...

10% loss in each direction is quite significant. How much of that is in the motor and how much in the inverter?

And then what AC voltage does the motor use?

Because in reality I'd like to be running it straight from 3-phase grid electric @ 400V taking from the inverter outputs sending back into ...

Hi Johannes, thanks for reading.

I don't believe you are lazy at all🙂

But no that wouldn't do much...

So for one tonne to rise 100m;
100m X 1000kg X 9.8m/s² = 980,000J
980,000J / 3600s = 272Whr storage!!

Then we'd have to get the electricity in and out of the Leaf. So either through rails or ...

Hello all.

I have built a couple of home energy storage projects. Both with cheap Chinese hybrid inverters (which I find work incredibly well for the measley cost) and ex EV batteries. I have one at home in the cupboard using MG 15s6p batteries 16.6kWh and a 5kW inverter but we are not allowed ...

Ok, very interesting. I will now disappear for some time (as many do) whilst I try to read and learn. With a bit of luck I'll be back. Regards.

Johu, Celeron, many many thanks.

It is a fascinating, and yet frustrating area of evolution. Given that my first Arduino is still in my AliExpress shopping cart it seems highly unlikely that I could learn enough quickly enough (other obligations and brain power limitations). So can you think of ...

Thanks SRFirefox, I'm glad that some of my understanding is about right. And to the motor tuning section, that is what I was getting at. I felt that it wasn't going to be a look-up style affair because that would simply be too simple.

As the aftermarket demand for a tuning solution for the Leaf ...

Amy thanks to all of you. It is unusual to find that nobody is even slightly optimistic regarding s project! I don't mean that in a bad way. I mean it in a way that suggests I may have to actually listen to some advice given, which has never been my strong point. Although in later life I am learning ...

Thanks SRFirefox. That confirms my understanding of the situation. The question remains would it be possible to take Johannes brain board or elements of, to continue speaking Leaf?

I will be going ahead with the project, as a basis for a future series. And it will indeed be a lot lighter - I'm ...

Hello to all of you electronics experts. I am sadly not one of you. I will do my best to become like you, but I do not, in all honesty, hold out much hope.

I have been a kit car builder, errm thats a UK think, it means when we buy or build a chassis and bodywork and we use mechanics/electrics from ...