Geyser timer solution for solar

wingnut771 said:
Indeed. Those tube things are useless. Replace with 4 pv panels and controller.
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Really? I strongly disagree, I have 24 tubes, small circulation pump into a 200l geyser, this without the geyserwise.
I heat it with electricity about 3/4 times a year, in fact the geyer is off at DB board. Space it takes up is about 1 panel size.
 
biena said:
Really? I strongly disagree, I have 24 tubes, small circulation pump into a 200l geyser, this without the geyserwise.
I heat it with electricity about 3/4 times a year, in fact the geyer is off at DB board. Space it takes up is about 1 panel size.
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Sure, I guess size does matter. Is yours facing NE too? But you said it yourself, even this monstrosity doesn't work all year round.

How many solar panels could you fit in the space that takes up?

How many tubes do you have @duderoo?
 
wingnut771 said:
Sure, I guess size does matter. Is yours facing NE too? But you said it yourself, even this monstrosity doesn't work all year round.

How many solar panels could you fit in the space that takes up?
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faces NNW, can fit 1 panel into that space.
 
duderoo said:
8kW, 5kW is not even an option unless you a single person
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Okay, then upgrade element to 4kW.
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then add as many panels that fit on north roof. I assume its a sunsynk so could probably put those on microinverter and add to aux port or a victron mppt connected to battery which will help with charging.
 
wingnut771 said:
east/west array so bad in winter. I would add 2 biggest panels one can get on the small patch of north facing roof.
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First problem is splitting it like that. All panels face North East as much as possible. Second string can handle West later on. But only 2kw of solar with 8kw inverter?? What's the battery?
 
Lupus said:
First problem is splitting it like that. All panels face North East as much as possible. Second string can handle West later on. But only 2kw of solar with 8kw inverter?? What's the battery?
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2kW now because its winter, I would assume it double in summer.

Its easy to put a seperate victron mppt for 2 panels on north roof and connect straight to battery.

No idea on battery size, prob 10kWh.

He doesnt have money for second string.
 
wingnut771 said:
2kW now because its winter, I would assume it double in summer.

Its easy to put a seperate victron mppt for 2 panels on north roof and connect straight to battery.

No idea on battery size, prob 10kWh.

He doesnt have money for second string.
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Then he'll have to just keep using grid for geyser.
 
wingnut771 said:
east/west array so bad in winter. I would add 2 biggest panels one can get on the small patch of north facing roof.
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well I cannot change the house direction for winter and looking at my roof I dont have much of a choice, once August comes I am back with enough generation
 
wingnut771 said:
At least upgrade element for R300 so it doesn't take 6 hours to heat up. Then water will be hot from the 12:30-14:00 timer.
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2kw will heat in 5 hours and a 4 will heat in half that and use the same power less time is how I see it
 
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