Mike Hoxbig
Honorary Master
It feeds your existing geyser.
As a simple example, you would feed it 1 kW of power, it would then feed 4 kW to the geyser. The power saving is obvious. It's similar to how an aircon works...
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Vacuum tube vs PV
- Thread starter Nerfherder
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As a simple example, you would feed it 1 kW of power, it would then feed 4 kW to the geyser. The power saving is obvious. It's similar to how an aircon works...
superskully
Expert Member
Just to add, then you would not need a big inverter as you just took your biggest element out of the question. No need for so many panels as well as batteries to store energy for night time
5 vs 8kw inverter was not driven by a geyser it was driven by my decision to have zero impact on my lifestyle....
no need to be a usage police with an 8kw
shadow_man
Executive Member
+1 I hit spikes of 5kw and I'd have had (self induced) power outages if I hadn't have gone with the 8kw. (2 user household, with the occasional guests).
superskully
Expert Member
Yea, but the goal the OP mentions is money. If you want to save money you change your lifestyle.
superskully
Expert Member
If you keep a grid connection, the smart inverters like Sunsynk will blend grid to top it up. It does not cost much
this was likely during LS
Mike Hoxbig
Honorary Master
Possible, depending on your usage. But in the bigger scheme of things, a R10k difference between 5 kW and 8 kW is not that much compared to the cost of other components in the system.
Apart from not having to monitor usage, I don't want to have to defend my decision to go solar to the wife, whenever she does something that might make it trip. When she's in the kitchen then everything needs to be on simultaneously...