Victron SmartShunt alarm not audible?

[Brucey]

@kromc5 What blows me away is how can he have a 576kWh battery. That's 20X bigger than what I'm using, which cost me at least $5000. So the dude has a $100k battery? Really amazing.

And size wise 576kwh is like half my monthly electric usage.

I use about 12kw of panels to charge a 28kwh battery, which kinda is a reasonable ratio. I wouldn't think you could reasonably charge a 576kWh with a 68kw array, I'd think the array would need to be 3X bigger to regularly reach a full state of charge with a monster battery like that.

Are there pictures of his build anywhere?

He's assembling his own batteries, you can generally build a 15kwh battery for around $1500 or less, and he's buying cells in significant qty and doing 16S3P to minimize BMS costs etc. so might be closer to $1000. So maybe $40-60k all in? I believe his goal was several days of backup while consuming 50-80kWh per day or something like that, in crap winter conditions.

 

[rin67630]

Plenty of esp devices have ethernet and Poe, or if your using a standard esp one can be added.

Excepted the horribly expensive development board, I know none.
Have you got some references?

 

[Brett V]

trust me no offense taken.. i know my limitations

You have limitations?

 

[ThaiTaffy]

Excepted the horribly expensive development board, I know none.
Have you got some references?

WT32-ETH01 would be the cheapest there's lots of companies producing those Ali should have a wide range most fitted with a wroom chip but those are just ethernet.
Poe versions are fairly expensive I use a few lilygo T-internet-POE boards which are well made and only around $15 here but that's still a substantial increase considering most of the dev boards I buy are $2

 

[rin67630]

WT32-ETH01 would be the cheapest there's lots of companies producing those Ali should have a wide range most fitted with a wroom chip but those are just ethernet.
Poe versions are fairly expensive I use a few lilygo T-internet-POE boards which are well made and only around $15 here but that's still a substantial increase considering most of the dev boards I buy are $2

Not only are they expensive, but don't have any USB programming interface and as far as I saw they don't even have insulation magnetic cores.
An absolute NO-GO !

 

[ThaiTaffy]

Not only are they expensive, but don't have any USB programming interface and as far as I saw they don't even have insulation magnetic cores.
An absolute NO-GO !

Yes no programmable usb interface but that's easy to overcome a number of ways I generally just use a Uno with the rst and gnd pins bridged. No idea what an insulation magnetic core is but I can tell you mine have worked almost 2 years without issue.

 

[rin67630]

No idea what an insulation magnetic core is but I can tell you mine have worked almost 2 years without issue.

It's a 0.6$ component that insulates the ethernet communication pairs and prevents ground loops.
Ethernet insulation provides a limited insulation to two devices connected over an ethernet cable.
This component is frequently bypassed on cheap Chinese fake interfaces, but here on the ESP board there is not even a place for it.
If you are lucky, you have an insulation on the other side, but if you connect two fakes together you can get the magic smoke or a totally unreliable communication due to sheath current loops.

 

[kromc5]

@kromc5 What blows me away is how can he have a 576kWh battery. That's 20X bigger than what I'm using, which cost me at least $5000. So the dude has a $100k battery? Really amazing.

And size wise 576kwh is like half my monthly electric usage.

I use about 12kw of panels to charge a 28kwh battery, which kinda is a reasonable ratio. I wouldn't think you could reasonably charge a 576kWh with a 68kw array, I'd think the array would need to be 3X bigger to regularly reach a full state of charge with a monster battery like that.

Are there pictures of his build anywhere?

Here are a few pictures of all the banks. There are no issues charging. Last year, before the new panels, it could hit a continuous charge rate of 500+ amps.

It's a long thread from the start and all the changes over the years.

Very new to solar but started purchasing items, not sure of the final specs of the whole system.

Did you access that from the app? Looks different than mine.. I enabled all the widgets under the advanced tab for the two shunts in vrm.

diysolarforum.com

 

[Daddy Tanuki]

Here are a few pictures of all the banks. There are no issues charging. Last year, before the new panels, it could hit a continuous charge rate of 500+ amps.

It's a long thread from the start and all the changes over the years.

Very new to solar but started purchasing items, not sure of the final specs of the whole system.

Did you access that from the app? Looks different than mine.. I enabled all the widgets under the advanced tab for the two shunts in vrm.

diysolarforum.com

Dayum... what the plan? Kicking PG@E out of business?

 

[Daddy Tanuki]

You have limitations?

yeah, I have fathered four that I am aware of, and at this point will be working until I am 67 to get the last two through college. so I think four kids is one of the limitations, even though i wake up with morning wood daily...My wife just rolls over and says put that thing away before you throw out your back or something. Another is the simple fact that being primarily of Irish descent I love a good fight... just not sure I can follow through properly at this point in life. so I guess age sets some limitations as well.