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Inverter question


DeezGP

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Hi all. 

Please can you assist with some advice

1. Is the luxpower sna5 able to work as a hybrid as well and if so is is as good as a full hybrid like a growatt?

 

2. Would 2 x greenrich 5kw batteries be suited for a 5kw luxpower. I plan on fitting 8x545w panels

 

Your advise will be greatly appreciated 

Thanking you in advance 

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1 hour ago, DeezGP said:

1. Is the luxpower sna5 able to work as a hybrid as well and if so is is as good as a full hybrid like a growatt?

Simple answer, yes.

The luxpower has a slight edge over the growatt as it can blend power better is more ways.
But for a better more accurate answers you should provide the models you are referring to as each brand has many different models that have very different specs and work modes.
 

1 hour ago, DeezGP said:

2. Would 2 x greenrich 5kw batteries be suited for a 5kw luxpower. I plan on fitting 8x545w panels

Yes, the 8 panels should be just enough to get the batteries to fully charged every day the sun shines :)

Edited by WannabeSolarSparky
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1 hour ago, WannabeSolarSparky said:

Simple answer, yes.

The luxpower has a slight edge over the growatt as it can blend power better is more ways.
But for a better more accurate answers you should provide the models you are referring to as each brand has many different models that have very different specs and work modes.
 

Yes, the 8 panels should be just enough to get the batteries to fully charged every day the sun shines :)

Add to this the SNA CAN also export with software control while the LXP is a true hybrid with non essential and essential outputs and CT control of export. 

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7 hours ago, WannabeSolarSparky said:

But for a better more accurate answers you should provide the models you are referring to as each brand has many different models that have very different specs and work modes

Thank you @WannabeSolarSparky

Appreciate the response. I'm looking at the spf5000es and the dna5000

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6 hours ago, Scorp007 said:

Add to this the SNA CAN also export with software control while the LXP is a true hybrid with non essential and essential outputs and CT control of export. 

Thank you @Scorp007 much appreciated. So the cannot manage essential and non essential loads.  Does that mean the growatt would be better suited for my use as a back up for loadshedding?

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50 minutes ago, DeezGP said:

Thank you @Scorp007 much appreciated. So the cannot manage essential and non essential loads.  Does that mean the growatt would be better suited for my use as a back up for loadshedding?

No not at all. I am not sure which Growatt but guess the Luxpower just has more features and better use like @WannabeSolarSparky

mentioned. 

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9 hours ago, WannabeSolarSparky said:

The luxpower has a slight edge over the growatt as it can blend power better is more ways.
But for a better more accurate answers you should provide the models you are referring to as each brand has many different models that have very different specs and work modes.

 

How does the Luxpower blend power better? What does it offer in this regard which the Growatt does not?

 

I have been toying with the idea of getting a Growatt inverter, the Luxpower seemed nice but I would actually prefer the single MPPT which the Growatt has as opposed to 2x smaller MPPT's which the Luxpower has.

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11 minutes ago, PsyCLown said:

How does the Luxpower blend power better? What does it offer in this regard which the Growatt does not?

The luxpower sna has almost the same features as the deye/sunsynk with its ability to push power back to non-essentials side or even to the grid if you are allowed.
i.e. it is grid-tied.

The growatt spf5000 cannot do that at all, it is purely an off-grid inverter.

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40 minutes ago, WannabeSolarSparky said:

The luxpower sna has almost the same features as the /sunsynk with its ability to push power back to non-essentials side or even to the grid if you are allowed.
i.e. it is grid-tied.

The growatt spf5000 cannot do that at all, it is purely an off-grid inverter.

Thank you @WannabeSolarSparky

2 hours ago, Scorp007 said:

No not at all. I am not sure which Growatt but guess the Luxpower just has more features and better use like @WannabeSolarSparky

mentioned. 

I'm looking at the growatt spf5000 and the luxpower snp5000

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48 minutes ago, PsyWulf said:

Those 2 are basically comparable,I don't think the SNA can do partial blending though (aka batteryless). The LXP is the luxury model

The SNA can work battery less AFAIK. 

@DeezGP

I see no plus having 8 panels into 1 MPPT vs 2x4strings in series in 2xMPPTs.

If the 8 need to face different directions the 2xMPPTs are just better. 

If this is your criteria then go for the Growatt. 

Then if one day we can export to the munic on good terms then the SNA can do it. 

IMG_20230515_100916.thumb.jpg.e0d228186c7e7dfbb31b5b226f34a28e.jpg

Edited by Scorp007
Added battery picture
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Thanks everyone for contributing to the conversation.

I'm a real dummy when it comes to this topic so I just want to clarify if my understanding is correct 

The Luxpower SNA5000 can do everything the Growatt SPF5000ES can do?

The Luxpower SNA5000 can work as a hybrid. It can charge the batteries from solar and from grid when required.

Can also feed into the grid IF needed to.

 

I'm not really interested  I  feeding back to the grid

 

Thank you

 

 

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40 minutes ago, WannabeSolarSparky said:

Most of us do not feed back to the eskom grid, but we do use the inverters to feed back to our home grid ( The non-essentials ) Which is something the growatt 5000es cannot do.

Ok, got it. Thank you👊

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On 2023/05/15 at 8:35 AM, WannabeSolarSparky said:

The luxpower can take up to 8000 watts of solar 4000 watts on each mppt.
Also having 2 mppt's allow for more flexible roof orientations if needed.

Is this for the LXP or SNA model?
I was looking at the SNA model as that is more comparable to the Growatt 5000ES. The price of the LXP is not far off from a 5KW SunSynk

 

I was under the impressive the 5KW SNA Luxpower is 6KW of PV, so 3000W per string and the max current was 13A per MPPT.

I was looking at the Canadian Solar Haiku 7 panels, nice high wattage panels but they output upto 18A so the Luxpower would require me to use different panels with a higher voltage and lower current. Not the end of the world, although I would have the same issue with the 5KW SunSynk.

I understand my situation may differ to most as I have a flat roof so I can face all my panels in the exact same direction and shading of the panels is not an issue for me either, so multiple MPPTs to assist with this is not really applicable to me.

 

I liked the idea of those higher powered Haiku 7 panels as the voltage was lower, so easier to have multiple panels on a string without reaching the MPPT max input voltage and at the same time it can help maximize space on ones roof.

 

The fact the Luxpower SNA allows for non-essential loads like the SunSynk / Deye inverters is really nice though and considering its about the same price as a Growatt SPF 5000ES if you require this feature then it is a no brainer really.

Edited by PsyCLown
MPPT Current
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On 2023/05/15 at 4:39 PM, WannabeSolarSparky said:

Most of us do not feed back to the eskom grid, but we do use the inverters to feed back to our home grid ( The non-essentials ) Which is something the growatt 5000es cannot do.

@WannabeSolarSparky I don't beleive the SNA can feed to non-essential loads like the Sunsynk. It feeds back to grid if enabled, that's it (well, as far as my small mind can comprehend). Luxpower themselves don't even go into detail about this in their training videos. I have the same unit and disabled the feed back option as it was recommended. It still tries to feed back a bit on the odd occasion and the symbol on my prepaid meter confirms it from time to time (miniscule amojnts). This is also admitted to be the case in the training videos I watched. I would however be pleased to learn if there is a way to make it give excess PV to my non-essential geyser. Nonetheless, it works great for me and blends power like a champ. I've seen it manage between PV and grid on cloudy days and was impressed with how it takes loads together when necessary and only allowing battery charge when there is enough PV. For its price, it's a winner for me. 

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8 hours ago, Unity said:

@WannabeSolarSparky I don't beleive the SNA can feed to non-essential loads like the Sunsynk. It feeds back to grid if enabled, that's it (well, as far as my small mind can comprehend). Luxpower themselves don't even go into detail about this in their training videos. I have the same unit and disabled the feed back option as it was recommended. It still tries to feed back a bit on the odd occasion and the symbol on my prepaid meter confirms it from time to time (miniscule amojnts). This is also admitted to be the case in the training videos I watched. I would however be pleased to learn if there is a way to make it give excess PV to my non-essential geyser. Nonetheless, it works great for me and blends power like a champ. I've seen it manage between PV and grid on cloudy days and was impressed with how it takes loads together when necessary and only allowing battery charge when there is enough PV. For its price, it's a winner for me. 

Are you able to connect non essential items to that part that feeds back into yhe grid? 

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I don't know if it is even necessary for my planned setup. I have a gas stove and a heatpump geyser. With 2x5kw batteries and a 5kw SNA, can I just connect them all to the load and ignore essential and non essential? Would I need to add another 5kw inverter or 1 x 8kw

Edited by DeezGP
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