Geyser timer solution for solar

[Lupus]

We need 7kWh to heat 200l from 30 to 55 and about 9kWh from 20c.

Or equivalent

 

[wingnut771]

They aren't that expensive, you need them to be relatively small to allow the water to warm quickly. 5m is roughly 400 bucks, the problem is coiling that.

I heard it’s easier to coil them if they full with water and sealed on the ends, then they don’t kink.

 

[wingnut771]

Or equivalent

$$$

 

[Lupus]

I heard it’s easier to coil them if they full with water and sealed on the ends, then they don’t kink.

Never thought of that, would partially make sense as well.

 

[Lupus]

$$$

Then use Eskom, can't get savings for everything on solar unless you're willing to $$ or to sacrifice

 

[wingnut771]

Never thought of that, would partially make sense as well.

water doesn’t compress.

 

[wingnut771]

Then use Eskom, can't get savings for everything on solar unless you're willing to $$ or to sacrifice

The savings come from not using tube panels and go pv. School fees.

 

[wingnut771]

Is this a scam?

LONGi Solar Hi-MO X6 54HTH 430W Half Cut Black Frame Explorer 15Y (LR5-54HTH-430M)

LONGi Solar Hi-MO X6 54HTH 430W Half Cut Black Frame Explorer 15Y (LR5-54HTH-430M) Maximum Power (Pmax/W): 430W Panel Efficiency (%): 22% Weight (kg): 20.8 Warranty: 15 Years

www.glotechenergy.co.za

 

[duderoo]

Why is it not heating then?

the angle the sun is hitting the panels and the temp of the water to heat is the issue

 

[wingnut771]

Maybe add this and some panels on roof facing north and connect direct to battery.


Would cost the same as pv setup solely for geyser but instead you can use extra solar for other things like charge battery.

 

[isie]

I have been told that and the reason I should stick with the 2kW

what the inverter size?

 

[wingnut771]

what the inverter size?

Prob 5kW.

 

[isie]

Prob 5kW.

either invest in 8kw+ and more panels or heat pump

 

[wingnut771]

either invest in 8kw+ and more panels or heat pump

Seeing money is an issue, I would keep it as is and add a victron mppt and as many panels that can fit in the little north facing roof space.

 

[denmendez65]

Is this a scam?

LONGi Solar Hi-MO X6 54HTH 430W Half Cut Black Frame Explorer 15Y (LR5-54HTH-430M)

LONGi Solar Hi-MO X6 54HTH 430W Half Cut Black Frame Explorer 15Y (LR5-54HTH-430M) Maximum Power (Pmax/W): 430W Panel Efficiency (%): 22% Weight (kg): 20.8 Warranty: 15 Years

www.glotechenergy.co.za

View attachment 1911014

Doesnt look like it. I did buy mine for 890 or so but they were 340 watts.

 

[wingnut771]

Doesnt look like it. I did buy mine for 890 or so but they were 340 watts.

This is 555W.


So 3 of these and one victron = R5k.

 

[denmendez65]

This is 555W.
View attachment 1911039

So 3 of these and one victron = R5k.

Yeah,

There is also this. The options are there. Thi is what I have. They say its for a 150 litre geyser but with me being able to hit 70 by mid day with the wrong size element (I should use a 3kW to extract 30% of so more heating) it will definitely work on the 200 litre without issues. The hardware needed for the Charge controller and this is identical. Just when you do heat your geyse your panels are idling and doing nothing.

 

[isie]

Seeing money is an issue, I would keep it as is and add a victron mppt and as many panels that can fit in the little north facing roof space.

lol if money is no issue so much more can be done

 

[wingnut771]

Yeah,

There is also this. The options are there. Thi is what I have. They say its for a 150 litre geyser but with me being able to hit 70 by mid day with the wrong size element (I should use a 3kW to extract 30% of so more heating) it will definitely work on the 200 litre without issues. The hardware needed for the Charge controller and this is identical. Just when you do heat your geyse your panels are idling and doing nothing.

View attachment 1911040

I would rather put that money towards mppt controller to charge battery.

 

[wingnut771]

lol if money is no issue so much more can be done

I said money is an issue. 1 x mppt and 2 or 3 panels is cheaper than replacing 5kW with 8kW.