New to this stuff and I’m wondering what to buy.
I have an Australian 3 phase house with the meter box as shown:
I’m wanting to pull a fairly complete view of whole house power usage into Home Assistant.
I also have a fairly new solar system with Enphase inverters. This is currently working well and I can see the total solar produced vs total used and work out net consumption and export etc in Home Assistant, but I read that the latest firmware update breaks this. (Currently blocking their cloud service) so I was thinking that maybe I should just put my own CT clams on those cables and be done with it.
I’m assuming I’ll need:
- Three clamps to monitor power to the grid from the main breaker
- One to monitor solar generation
- One I can run all four light circuits through (or can I just clamp the cable to the RCD?)
- *Not sure what the “Spa” one does. Maybe the blower on the bath upstairs
- One for the Pool circuit (runs the filter pump and chlorinator and some lights etc)
- One for the combined Power circuits (or via the RCD) - ideally I’d like to split these up though
- Three for the 3-phase air conditioner (or can I run all three phases through one clamp?)
- One (?) for the Fridge? I’m not sure why the fridge is on a RCD and looks like two phases?
- One for the Oven
- Three for the spa pool. Or can I run all three phases through a single clamp here?
I think that’s 15 in total. I had some GPOs put in for the reference and power.
- Am I on the right track with my thinking?
- Would one base unit be enough for this?
- Can I use a single clamp for the 3 phase devices like the spa and air conditioner?
- I understand I’d need to source a reference transformer locally, but for 3 phase you technically need three. How accurate is it likely to be with just one?
- Base units look like they are out of stock. How often do they come back in?
- Would I have enough space in this box, or need to install externally? (There is another box they added for the solar)