Having followed through with my own solar journey, I’m now looking at ways and means to get parents and in laws to be a bit more independent from the grid, but these full blown solutions are expensive.
I’ve therefore been looking at the luxpower SNA5000 and Growatt SPF5000es as inverters.
I understand that these cannot feed non-essentials. You’ll have to split the DB board appropriately and watch that the loads do not exceed 5kW.
My question: what is the scalability of these off grid solutions? They can blend AC and DC to meet demand. So in the case of the luxpower SNA5000 if a second one is added at a later stage in parallel, the full load can be added, as the total capacity would be 10kW and this at a cheaper price than a Sunsynk 8kW.
Besides not being able to feedback to the grid (which is not an issue), what other drawbacks would there be?
The other consideration is also to just have the LXP which can power non-essentials, so that excess solar can be utilised as opposed to the SNA where non-essentials would be fully grid dependent. LXP a bit more cost effective than Sunsynk/Deye.
Goals:
1) Load shedding relief
2) Reduce reliance on Eskom
3) Reduce Eskom bill, current usage +/- 400kWh
4) Ability to scale later on without replacing components
Options (all starting with 5kWh battery and roughly 3.4kWp array with exception of option 3):
1) Luxpower/Growatt 5kW off grid - con no solar to non-essentials, have to watch simultaneous loads
2) Sunsynk/Deye/Luxpower 5kW hybrid - con increased cost, have to watch simultaneous loads
3) Sunsynk/Deye 8kW - con, will mean solar panels get pushed out, not a viable option but putting it here
4) 2* parallel luxpower/Growatt off grid - increased cost from option 1 but can be done later, any other downside?
I’ve therefore been looking at the luxpower SNA5000 and Growatt SPF5000es as inverters.
I understand that these cannot feed non-essentials. You’ll have to split the DB board appropriately and watch that the loads do not exceed 5kW.
My question: what is the scalability of these off grid solutions? They can blend AC and DC to meet demand. So in the case of the luxpower SNA5000 if a second one is added at a later stage in parallel, the full load can be added, as the total capacity would be 10kW and this at a cheaper price than a Sunsynk 8kW.
Besides not being able to feedback to the grid (which is not an issue), what other drawbacks would there be?
The other consideration is also to just have the LXP which can power non-essentials, so that excess solar can be utilised as opposed to the SNA where non-essentials would be fully grid dependent. LXP a bit more cost effective than Sunsynk/Deye.
Goals:
1) Load shedding relief
2) Reduce reliance on Eskom
3) Reduce Eskom bill, current usage +/- 400kWh
4) Ability to scale later on without replacing components
Options (all starting with 5kWh battery and roughly 3.4kWp array with exception of option 3):
1) Luxpower/Growatt 5kW off grid - con no solar to non-essentials, have to watch simultaneous loads
2) Sunsynk/Deye/Luxpower 5kW hybrid - con increased cost, have to watch simultaneous loads
3) Sunsynk/Deye 8kW - con, will mean solar panels get pushed out, not a viable option but putting it here
4) 2* parallel luxpower/Growatt off grid - increased cost from option 1 but can be done later, any other downside?
