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User #280990   1595 posts
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posted 2025-Mar-27, 5:15 pm
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posted 2025-Mar-27, 5:15 pm

RiDe writes...

MC Electrical, an installer in SEQ

Old mate must be feeling the pinch lately and has started criticizing any product he doesn't have an agreement to sell.

It's a shame as some of his earlier videos were informative.

User #262561   13180 posts
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posted 2025-Mar-27, 5:44 pm
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posted 2025-Mar-27, 5:44 pm

HomerSimpson1956 writes...

It’s a bit like Tesla in the old days, they took an existing product and made it a lot better.

Out of interest, what house battery product was around before the power wall?

LFP batteries are bulletproof, I haven’t heard of any failures even in cars.

Then you haven't looked very hard. BYD LFP EV batteries have failed in OZ and needed replacing.

The failure rate of any EV batteries is generally very low, but it isn't without failures, like most things in this world you always get some duds.

RiDe writes...

Young company: only two years old.

This is my biggest worry as well. It's a new company, a design flaw that pops up in a few years time could be very costly for them and take ages to get fixed. Think LG Chem.

We are also getting basically V1 of the product, generally these companies roll out a V2 to fix all the things they don't like about V1 and often that isn't backwards compatible with V1.

PW1 was very short lived, then PW2 arrived for ages then finally PW3.

Are we at the PW1 stage or PW2 stage?

All that said, if you have 3 phase, then Sigenergy is the way to go, no questions asked.

User #36228   3994 posts
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posted 2025-Mar-27, 5:50 pm
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posted 2025-Mar-27, 5:50 pm

The reality is that product development takes time... Regardless of how many geniuses you hire ..

Real world testing brings out the worst (and best) of something.. iterations are required.

The (my) concern with Sig is how young the company is, and what backing support do they have (outside of the CCP – which is not not non-trivial)...

MC is right, it's a risk.

Personally I think it will be fine.

!remind me 5 years.. :P

User #903205   1186 posts
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posted 2025-Mar-27, 6:13 pm
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posted 2025-Mar-27, 6:13 pm
O.P.

Tephra writes...

The (my) concern with Sig is how young the company is, and what backing support do they have (outside of the CCP – which is not not non-trivial)...

Sigenergy appears to already be the best supported Chinese inverter in Australia. I'm pretty certain they have more staff than all the established Chinese inverter manufacturers. Remember, at the moment Sigenergy are not supporting hundreds of thousands of legacy inverters failing under warrenty, they really only have 6 months of sales to look after.

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posted 2025-Mar-27, 6:18 pm
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posted 2025-Mar-27, 6:18 pm

ItsAllTooMuch4Me writes...

My understanding is that he loves the stuff he sells, everything else: not so much.

Yes MC loves to slam products they don't like, like the Zappi, yet 100ks are installed without issues. Yet they got the only two with overheating issues. (goggle Zappi overheating and its hard pressed to find a unit with the same issue).

Tephra writes...

The (my) concern with Sig is how young the company is, and what backing support do they have (outside of the CCP – which is not not non-trivial)...

Same, its young. While they might have hired/been born from some great engineers. 2 years is a short time for a development and testing cycle for a product like this.

The 2 year warranty on the gateway is a valid concern when others like the PW2/3 come with a 10 year warranty.

Personally I think it will be fine.

If I had 3 phase, I would risk it. If I had single phase, I would go with the PW3. But that's just me.

User #262561   13180 posts
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posted 2025-Mar-27, 6:20 pm
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posted 2025-Mar-27, 6:20 pm

Tuxbury writes...

Sigenergy appears to already be the best supported Chinese inverter in Australia

Easy to do when as you said

they really only have 6 months of sales to look after.

The real test will be in a few years time when things start to fail and they are looking after a lot more installs. At this point in time, all these installs are very 'personal' as we have seen from some of the MD comments here.

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posted 2025-Mar-27, 6:21 pm
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posted 2025-Mar-27, 6:21 pm

Instruction writes...

If I had single phase, I would go with the PW3.

We've ruled out Tesla anything.

User #36228   3994 posts
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posted 2025-Mar-27, 6:45 pm
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posted 2025-Mar-27, 6:45 pm

wattmatters writes...

We've ruled out Tesla anything.

Agreed, I dont hold it against current Tesla owners of course, but now that a certain individual seems to have lost the plot entirely, I wont be sending any more cash his way.

You could call that hypocritical given I bought a BYD and am looking at Sig for a BESS...

Aren’t people fickle :P

User #262561   13180 posts
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posted 2025-Mar-27, 6:56 pm
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posted 2025-Mar-27, 6:56 pm (edited)

Tephra writes...

You could call that hypocritical given I bought a BYD and am looking at Sig for a BESS...

Ahh yes, the CCP has fine examples of human rights and doing the right thing.

No company is perfect, so choose your poison and go with it.

User #171871   1884 posts
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posted 2025-Mar-27, 7:07 pm
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posted 2025-Mar-27, 7:07 pm

wattmatters writes...

We've ruled out Tesla anything

Same – plus to get anything similar to the equiv of my 24kWh battery I would have had to install 2 x PW3's ($$$$)

User #226271   196 posts
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posted 2025-Mar-27, 7:12 pm
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posted 2025-Mar-27, 7:12 pm (edited)

The Left-Right political spectrum is a circle rather than a straight line. Extremes of both are well.....extreme!!

https://www.instagram.com/jonny_dougs/p/Cfpi9a7FwZN/?img_index=1
(I don't know the person)

https://factmyth.com/the-left-right-political-spectrum-explained/

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posted 2025-Mar-27, 7:22 pm
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posted 2025-Mar-27, 7:22 pm

RemorhazAU writes...

Same – plus to get anything similar to the equiv of my 24kWh battery I would have had to install 2 x PW3's ($$$$)

At this point in time you have to go double PW3, but you would also get double of everything so double solar inverter, double output etc. Which could be handy in some cases.

RiDe writes...

The Left-Right political spectrum is a circle rather than a straight line. Extremes of both are well.....extreme!!

There is no middle anymore. Both sides fail to see that.

User #346171   13532 posts
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posted 2025-Mar-27, 7:40 pm
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posted 2025-Mar-27, 7:40 pm

wattmatters writes...

We've ruled out Tesla anything.

A good thing our <unspeakable brand> battery is hiding/lurking in the garage and not open to public derision ;-]

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posted 2025-Mar-28, 6:46 am
edited 2025-Mar-28, 6:51 am
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posted 2025-Mar-28, 6:46 am (edited 2025-Mar-28, 6:51 am)
this post was edited

wattmatters writes...

We've ruled out Tesla anything.

Please can we just go one thread without this turning into a Tesla vs CCP debate. I have been on WP for over 20 years and I don’t remember it being this divisive. Let’s just talk about the tech!!! :)

Back on topic, what other 3 phase backup solutions are out there? I may just consider moving the whole unit into the garage instead of the south side of the house, but it means bollards. I can make room for it.

At the end of the day they are a young company, but all companies start that way and if nobody supported them then they’d cease to exist. I think it looks like a great product.

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posted 2025-Mar-28, 7:16 am
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posted 2025-Mar-28, 7:16 am

MrMarbles writes...

Old mate must be feeling the pinch lately and has started criticizing any product he doesn't have an agreement to sell.

It's a shame as some of his earlier videos were informative.

I dont think he's necessarily wrong. I'm close to signing up to get a Sigenery battery but I agree with his sentiment about a lot of it. It is a new company and a new product, nobody knows how it will hold up in 7 years time or so. I think they say that the battery is good and they hope to be proven wrong.
I think they are just very cautious with the products they recommend/support and I dont think they can be blamed for that.

The 2y warranty on the gateway is my main concern

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posted 2025-Mar-28, 7:22 am
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posted 2025-Mar-28, 7:22 am (edited)

HomerSimpson1956 writes...

what other 3 phase backup solutions are out there?

Few listed here https://www.solarquotes.com.au/blog/3-phase-battery-backup/

I may just consider moving the whole unit into the garage instead of the south side of the house, but it means bollards. I can make room for it.

Also remember the extra costs for cabling etc back to the main switch panel.

At the end of the day they are a young company, but all companies start that way and if nobody supported them then they’d cease to exist. I think it looks like a great product.

Agreed, but people do need to be aware of the risks. It's a big outlay for most people. While I don't think sigenergy backers will let it fail anytime soon. They are still very new and very small, so growing pains are to be expected at some point.

TVO writes...

The 2y warranty on the gateway is my main concern

I was a bit surprised by this being so short, and I agree with all your other points.

It certainly is going to be a time will tell type of purchase.

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posted 2025-Mar-28, 8:02 am
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posted 2025-Mar-28, 8:02 am

RiDe writes...

MC Electrical, an installer in SEQ, has reviewed Sigenergy system on YT

Watched the video a couple of days ago. Hmmmmm. Not impressed with their attitude towards the Sigenergy system. However, his other videos are generally of a very high standard.

I need some reassurance, as I have ordered an install and paid the deposit.

My Sigenergy BESS is finally about to be installed, now that United Energy (Melbourne DNSP) has lifted the grid protection limit from 30kVA to 200kVA, in line with the recently updated Australian Standards.

I have a 3 phase, 25kW/40kWh, stack on order. MC Electrical's video has not deterred me from buying Sigenergy, even though their issues are somewhat valid.'

Sigenergy have systems installed in many countries around the world. Australia, New Zealand, South Africa, USA as Point Guard branded and other locations. I haven't hear or read about any serious issues with their systems. Only very good news. So by now, with many systems installed, I have confidence that my Sigenergy BESS will perform as expected.

Take a look at this very recent press release from Sigenergy
https://www.linkedin.com/feed/update/urn:li:activity:7305516040413659136

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posted 2025-Mar-28, 8:08 am
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posted 2025-Mar-28, 8:08 am

wattmatters writes...

We've ruled out Tesla anything.

I only ruled out Tesla for my home BESS because it's single phase and I have 3 phase home supply. If Tesla had 3 phase BESS, it would be considered. So it's Sigenergy all the way.

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posted 2025-Mar-28, 8:46 am
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posted 2025-Mar-28, 8:46 am

Instruction writes...

Also remember the extra costs for cabling etc back to the main switch panel.

It’s a new build and just across the wall anyway, so a very short run. It’s just that it will eat into my garage space and also the extra heat in there during warmer months (QLD west facing!). As we all know heat is bad for batteries. The outside wall is south facing with no sun exposure but some exposure to rain. I could build a little cover for it?

Decisions decisions. I’ve got about a month or two to decide before the wiring goes in.

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posted 2025-Mar-28, 9:39 am
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posted 2025-Mar-28, 9:39 am

MrMarbles writes...

Old mate must be feeling the pinch lately and has started criticizing any product he doesn't have an agreement to sell.

It's a shame as some of his earlier videos were informative.

solardave writes...

Watched the video a couple of days ago. Hmmmmm. Not impressed with their attitude towards the Sigenergy system. However, his other videos are generally of a very high standard.

This is the nature of "Product Reviews" from solar installers

Although he does go to good detail and provide good proof for his opinions (or sales-pitch), its like getting medical advice from a pharmaceutical company.