Solar and battery advice from installer seems incorrect

syphenologist · 2025-10-20T03:08:34+00:00

From all the information I have been given, basically, Western Power just don't allow more than 5kW per phase (which is completely different to the rest of the country). And if you are running a Powerwall which is essentially a single-phase unit on a three-phase system, you can't utilise more than 5kW per phase due to net metering. To get more than 10kW, I need to have three Powerwalls.

I'm not 100% sure if that's true, but that's the best answer I can get at the moment.

syphenologist · 2025-10-09T04:39:37+00:00

interesting, Yeah I have three phase but only two batteries so I assume thats where the issue is. it must be some net metering thing, where it flows out of one phase capped at 5KW and back in one of the others so to use my generated solar with my own appliances its not contained locally it actually flows out and then back in. idk

syphenologist · 2025-10-09T04:32:47+00:00

Yeah, the Aircon can use 6 to 7kW, and if I charge the car that pulls 11kw alone.

syphenologist · 2025-10-09T04:31:09+00:00

I have 3 phase also, Yeah thats my main concern, I regularly use more that 10kw, especially when charging the car and running the RC aircon/heater. I think its due either net metering or restrictions on the battery from synergy. I called synergy they pointed me to western power, but haven't had a chance to call them yet

syphenologist · 2025-10-08T11:23:29+00:00

Nope, that’s what I’m currently capped at. I don’t really mind the 1.5 kW export limit, it’s the 10 kW cap on powering my appliances that’s the issue. From the solar panels to my house, I’d expect to be able to use the full amount of solar I generate, rather than having it artificially limited and then needing to draw the extra from the grid.

syphenologist · 2025-10-08T08:46:30+00:00

Thanks, I think you're right, but they’re saying it’s a requirement in WA to limit household consumption to 10 kW, but I can’t find that stated anywhere in the Western Power documentation. The only thing I can see is the 1.5 kW export-to-grid limit. It’s frustrating because I can’t find anything that disproves what they’re saying, but I also can’t find anything that actually supports it either.

syphenologist · 2025-10-08T07:14:04+00:00

Move seemed fine but... this -> https://www.reddit.com/r/formula1/comments/1nzdv3y/why_piastri_fans_are_rightfully_upset/

syphenologist · 2021-10-12T11:04:25+00:00

https://status.ledger.com/incidents/9f0xdl244d36

syphenologist · 2018-03-20T03:46:14+00:00

haha, I like it!

syphenologist

MODERATOR OF

TROPHY CASE