Open ended question, but assume there are inverters (other than Sunsynk) that do supply blending?

By blending (my understanding is) being able to use grid, battery and solar if needed.

1 hour ago, bobmabena said:

Open ended question, but assume there are inverters (other than Sunsynk) that do supply blending?

By blending (my understanding is) being able to use grid, battery and solar if needed.

Yes there are but the deye 5kw is the best priced for a true hybrid with bidirectional on grid, offgrid features. If the budget is tight you could get axpert type hybrids like mine. I have a growatt sfp5000es , it blends pv and grid without any fiddling but you wont be able to sell your excess production to the municipality or feed loads before the inverter. I just connected the geyser to the inverter so it's still doable but not as elegant.

There is also this one https://www.solarwaysuppliers.co.za/product/sorotec-5-5kw-revo-ii-on-off-grid-hybrid-inverter-demo-2/ it claims to be a true hybrid at the same price as the axpert type hybrids.

Thanks... 

I’m just trying to make sure that, when I need more power than my panels are providing, that the system will only supplement the load, and not switch over completely.

Not interested in selling back (for now I guess)

On 2021/05/21 at 12:29 AM, bobmabena said:

assume there are inverters (other than Sunsynk) that do supply blending?

Yes. All Axpert models with the high voltage (450 or 500V max) solar charge controllers can blend AC-in with battery and solar, as can the Axpert King with 145V max SCC. SUB output priority mode is required.

Edited May 22, 20215 yr by Coulomb

@Coulomb, the only negative on the Axpert inverters is being limited to the 5 kW instead of a true hybrid ( essential and non essential circuits)

9 hours ago, Tariq said:

the only negative on the Axpert inverters is being limited to the 5 kW instead of a true hybrid

That's true. A true hybrid can blend AC-in and battery/solar even when in overload (more than 5 kW load on a nominally 5 kW inverter-charger).

15 hours ago, Coulomb said:

That's true. A true hybrid can blend AC-in and battery/solar even when in overload (more than 5 kW load on a nominally 5 kW inverter-charger).

Ok, so, 2x5kW Axperts will allow me to “blend” 10kW, but 1x5kW Sunsynk will allow only “8’ish”?

3 hours ago, bobmabena said:

Ok, so, 2x5kW Axperts will allow me to “blend” 10kW, but 1x5kW Sunsynk will allow only “8’ish”?

Hi Bob

It depends what model of the 5kw you have. 

1. SG02LP1 max 48A

2. SG03LP1 max 35A

@Leshen, is the SG02LP1 a 5 kW inverter ? and is it available in South Africa

1 hour ago, Tariq said:

@Leshen, is the SG02LP1 a 5 kW inverter ? and is it available in South Africa

It’s a 5kw inverter. Unfortunately, we in SA have the 35A version. 

12 hours ago, Leshen said:

Hi Bob

It depends what model of the 5kw you have. 

1. SG02LP1 max 48A

2. SG03LP1 max 35A

Ok, but based on the SG03LP1, is my reasoning reasonable?

10kW vs 8'ish?

Want to make sure I can fire my geyser, and, if my timing is off (from a load point of view), my house won't shut down. Looking to go as "far off the grid as possible"

what size element is your geyser and will you have enough pv during loadshedding hours

Currently, element is a 2kW...

Nothing installed yet, will initially have about 4kW solar, but planning on adding as I go.

Just want to make sure the inverter setup is correct.

12 minutes ago, bobmabena said:

Ok, but based on the SG03LP1, is my reasoning reasonable?

10kW vs 8'ish?

Want to make sure I can fire my geyser, and, if my timing is off (from a load point of view), my house won't shut down. Looking to go as "far off the grid as possible"

You are correct. The 5kw Sunsynk can convert 5kw from DC to AC and take the remaining 3kw from the grid if needs be. 
 

I would recommend the 8kw Sunsynk if you are looking to go as off grid as possible. 

2 minutes ago, Leshen said:

You are correct. The 5kw Sunsynk can convert 5kw from DC to AC and take the remaining 3kw from the grid if needs be. 
 

I would recommend the 8kw Sunsynk if you are looking to go as off grid as possible. 

Thanks.

Hi everyone, i'm looking for some advice re supply blending. Would the SOL-I-AX-8M (Max 2 version) do supply blending?

I am helping a friend and he is wanting to run from solar as much as possible but in the event that there is not enough solar he would like to supplement with grid power and should no grid power be available, supplement from battery as a last resort.

I understand this is SUB priority output but just want to make sure. So in other words, on a cloudy day, his PV supply is 2000 watts but his load is 4000w, then it should supplement with 2000w from Eskom but still use the 2000w PV at the same time.

Thanks so much guys, appreciate all the advice given on the forum. 

Hi @Andy07 there are now many affordable options  when it comes to true hybrid inverters for use in urban areas to "run from solar as much as possible".

Axpert type hybrids should really be for rural setting uses.

Your options are the Solis 6kw, Kodak/solis 4,6kw, Sunsynk/deye/fusion 5kw and last but probably best bang for buck(as in not least) Luxpowertek LXP 5kw.

These are all true hybrids and support most popular lithium brands of batteries. 

My number 1 choice would be the Luxpowertek lxp 5kw followed by the deye/sunsynk/fusion 5kw and solis 6kw.

https://solaradvice.co.za/product/luxpowertek-5kw-hybrid-inverter

 

https://solaradvice.co.za/product/fusion-5kw-hybrid-inverter

 

https://powerforum-store.co.za/products/solis-energy-storage-6kw-hybrid-5g-inverter-with-dc-switch?_pos=1&_sid=d38c7ecca&_ss=r

 

https://www.diygeek.co.za/product/kodak-4-6kw-solar-hybrid-inverter/

Edited April 28, 20224 yr by Buyeye

Thanks so much, I guess the main thing I wanted to be sure of was that he would get the benefit of any available solar from a cost saving perspective. I know that some Axpert inverters will just switch outright to grid when the PV supply cannot meet the load demand.

On 2022/04/28 at 4:48 PM, Andy07 said:

Would the SOL-I-AX-8M (Max 2 version) do supply blending?

Yes, provided that firmware glitches don't prevent it. The Max 2 is a fairly new model, and as such the firmware isn't very mature.

I have a doubt, does all Solis hybrid inverter has this blending feature or only specified ones

24 minutes ago, Kathiravan said:

I have a doubt, does all Solis hybrid inverter has this blending feature or only specified ones

Some are grid tied only. The 6kw and others I posted links to are true hybrids which means they are grid interactive and will use battery if the grid is not there.

5 hours ago, Kathiravan said:

I have a doubt, does all Solis hybrid inverter has this blending feature or only specified ones

The key is Solis 4G or 5G mini. They are all just grid tied. The RHI models are hybrid and does blend and use a battery.

At times one has to be specific about the model and not just the brand.

My response was based on the SOL-I-AX-8M, which I believe is a Mecer branded Axpert Max 2 (8 kW). Nothing to do with Solis inverters.

Hi all, does anybody know if the below Kodak Inverter does the "blending" feature whereby it uses all the solar power generated, and then adds the grid/battery to make up the demand. i.e if demand is 2000w and the solar is producing 1500w, then it only takes the additional 500w from the battery/ grid, instead of switching over fully to grid/ battery for the 2000w demand.

I am not interested in supplying access back to the grid. 

KODAK Solar Off-Grid Inverter 10kW 48V - Model KODAK OG-10