thomasw
Member
So they let the consumer comply with this via switching - I guess you will trigger the breaker if you dont.
The rules simply say you can't run two loads at once, that is really it, I've read much of the SA Power documentation about it. So yes, they let you control loads to limit to one at a time.
The install manual for the WC is here .. Installation Manuals - Wall Connector Not sure if it answers your question.
Thanks, I have read it and it covers the obvious single or three phase cases, but not connecting only 2 phases. It does show a wall charger internal wiring diagram which shows each phase going into the car, the wall charger really just can switch each one and monitor them, so implies it could be possible to send it 2 phases. But to me seems very likely the wall charger or car will throw an error if they see only 2 phases not 3, really unusual thing to do, but we'll see!
I currently switch between peak (excess solar) and CL using a Raspberry Pi which controls the various loads using contactors (Din rail 25Amp with 12V switching). The Pi can both control and monitor loads, including stuff like the hot water temperature. I plan to add to this to control the Tesla Wall Charger circuit which actually would allow the full 32Amp single phase if needed (sparky may still say 80% of this only) in my case. I had assumed the regulations would say a total of 32 amps.
Could please please give details on what exact contactors, etc you are using? I'm quite interested
Agreed - I have not seen evidence of anything other than a flat rate plus feedin rate on solar meters in SA. (and I paid a heap to get this dumb meter installed 4 years ago with my solar). You may want to check if an EV charger on its own would enable the install of the controlled load / off peak service. Potential savings are decent in the winter months at least - or if you can't charge during the day even in summer. eg. The difference on a 60kW charge would be around $10 each time.
When I got solar maybe 6 years ago I had a old main 3 phase meter, and seperate single pahse controlled load meter. They simply replaced my main meter with a digital (not really smart) meter, and left the controlled load. SA Power and AGL have both told me that they will replace both now with smart meters and they will stay seperate. No issue keeping controlled load with solar. But maybe if you got a new solar install now the story might be different. EV's are allowed on controlled load, so can't see why you couldn't order a new controlled load meter if you don't have one already. You don't even have to tell SA Power or the retailer if you change what load you have on it, I asked a very knowledgeable tech at SA Power (not the call center). It is just not legal to run other things on it. Savings are significant for me all year round, but for others that may depend a bit on the solar feed in they get from the government, if any.
Agreed - I have not seen evidence of anything other than a flat rate plus feedin rate on solar meters in SA. (and I paid a heap to get this dumb meter installed 4 years ago with my solar).
Well as above, I have it and no one even has an issue upgrading my meters to smart, and the current single phase controlled load meter to 3 phase smart at the same time. The controlled load does have to be a separate meter it seems.