Best solution for non-solar backup?

[Lupus]

I have the Sunsynk 8kw with Hubble 5.5Kw battery.
Will add solar panels later.
Don't even know about loadshedding at all.
We used the stove by accident last Saturday during loadshedding for around 30min. Battery lost around 10% over that time. Oven was already at the required heat, so was just switching on every few minutes to keep temperature.

What loadshedding last Saturday? Load shedding has only been happening since Monday night?

 

[AlphaJohn]

What loadshedding last Saturday? Load shedding has only been happening since Monday night?

Depends on location

Kya Sands been having "load shedding" for almost 3 weeks now, with some sessions lasting a full day.

 

[Lupus]

Depends on location

Kya Sands been having "load shedding" for almost 3 weeks now, with some sessions lasting a full day.

Ah load shedding

 

[Snyper564]

Solar is the cheaper part of the installation if you shelling out for this already just add solar to the mix and almost be off the grid.

 

[Nod]

What loadshedding last Saturday? Load shedding has only been happening since Monday night?

Sorry, not loadshedding, tree fell on power cables feeding the town. Had to look up why people were complaining again on our towns Telegram group

 

[neoprema]

I have the Sunsynk 8kw with Hubble 5.5Kw battery.
Will add solar panels later.
Don't even know about loadshedding at all.
We used the stove by accident last Saturday during loadshedding for around 30min. Battery lost around 10% over that time. Oven was already at the required heat, so was just switching on every few minutes to keep temperature.

Can they trip if you accidentally cross way over 8kw? or does it cause damage?

 

[Mzezman]

Can they trip if you accidentally cross way over 8kw? or does it cause damage?

They shouldn't if its momentary (up to 15mins i think) and if its not way over. On my 5kw i have gone to 6kw and it hasnt complained but it was for about 3-4mins max

 

[neoprema]

They shouldn't if its momentary (up to 15mins i think) and if its not way over. On my 5kw i have gone to 6kw and it hasnt complained but it was for about 3-4mins max

ok. I'm just wondering like if someone forgets and turns a geyser back on or starts up an AC and the inverter is still switched in place.

I assume there's an automatic changeover switch to switch between Eskom feed into the house, and the Inverter's feed?

 

[Mzezman]

ok. I'm just wondering like if someone forgets and turns a geyser back on or starts up an AC and the inverter is still switched in place.

I assume there's an automatic changeover switch to switch between Eskom feed into the house, and the Inverter's feed?

its so seamless i don't even register that Eskom has been cut / reconnected. Lights don't flicker, motors (AC or pool) don't rev up or down.

In terms of going over - i think it depends on how much beyond the rated - will try find the spec sheets for you for the 5 and 8kw.

 

[Mzezman]

8kw


5kw

 

[Nod]

Can they trip if you accidentally cross way over 8kw? or does it cause damage?

The oven, lights, PCs all combined were pulling 2.2kw at worse, going down to <800W while the oven is on temperature.

 

[Gaz{M}]

This UPS has served me well. I've SOLD it now:

Mecer 1200VA/720W Inverter for Sale

Hi Item: Mecer 1200VA/720W Inverter. Similar to this one: https://www.geewiz.co.za/mecer-inverters/104647-mecer-1200va-720w-inverter-battery-charger-ups-intelligent-fan.html Mecer 1200VA, 720W, 12V DC-AC Inverter. Cables to connect the unit to a battery are included. A 220V power cable is...

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[Snyper564]

Can they trip if you accidentally cross way over 8kw? or does it cause damage?

if you can afford 8kw go for 8kw its the joy of using without thinking about it. 5kw will require active management

 

[neoprema]

Anyone got experience with these units:

SOL-I-AX-5P64 MECER HYBRID 5000VA / 5000W Inverter Charger 4 000W MPPT 220V 48V DC PF1 64V Battery Charger

Also, can you get auto-switchover for them so it comes in the same line as my generator's cable used? I don't want to run permanently off the Inverter since it will not cope with the house max draw anyway, but its enough for what we need during load-shedding.

Finally, it says up to 9 can be connected in parallel. If I connect 2 - does that mean it can do 10 000W of power draw?

 

[TheChamp]

Anyone got experience with these units:

SOL-I-AX-5P64 MECER HYBRID 5000VA / 5000W Inverter Charger 4 000W MPPT 220V 48V DC PF1 64V Battery Charger

Also, can you get auto-switchover for them so it comes in the same line as my generator's cable used? I don't want to run permanently off the Inverter since it will not cope with the house max draw anyway, but its enough for what we need during load-shedding.

Finally, it says up to 9 can be connected in parallel. If I connect 2 - does that mean it can do 10 000W of power draw?

Yes, they are decent inverters but very basic, how much are you paying for it?

 

[Snyper564]

Anyone got experience with these units:

SOL-I-AX-5P64 MECER HYBRID 5000VA / 5000W Inverter Charger 4 000W MPPT 220V 48V DC PF1 64V Battery Charger

Also, can you get auto-switchover for them so it comes in the same line as my generator's cable used? I don't want to run permanently off the Inverter since it will not cope with the house max draw anyway, but its enough for what we need during load-shedding.

Finally, it says up to 9 can be connected in parallel. If I connect 2 - does that mean it can do 10 000W of power draw?

what is your budget and your goals?

you mentioned tesla powerwall and 300K in first post now you mention a mecer, its chalk and cheese

 

[Adenoid Hynkel]

Which inverter brands come with built in wifi and an app to monitor usage? A lan port will also do.

 

[neoprema]

what is your budget and your goals?

you mentioned tesla powerwall and 300K in first post now you mention a mecer, its chalk and cheese

I mentioned it as in "look how much this thing costs".

Not looking to spend 300k lol.

What I would like is around 5kva for now with enough power for 4 hours of full draw, and an automatic changeover switch to switch to the inverter when Eskom goes off. No solar.

In future, I would then like to double it to 10kva still as above.

 

[Tun@]

You also mentioned 3 phase & i think that opens some different problems than just a single phase setup.
eg: You need a 3 phase inverter or x3 single phase inverters.

 

[TheChamp]

Which inverter brands come with built in wifi and an app to monitor usage? A lan port will also do.

There are several, it depends on your budget, the best reasonably priced inverter in the land.

Growatt SPF 5000 ES 5kVA 5kW 48V Hybrid Inverter with WiFi

Functions Integrated MPPT charger controller. Equalization charging function. Max PV input up to 450vDC. Choose grid or solar input priority. WIFI/GPRS remote monitoring. Parallel up to 6 inverters. PV & Grid Power combine if PV energy is insufficient for load. Flexible schedule for charging and...

www.sustainable.co.za