Solar power and Geyser

denmendez65 said:
See @wingnut771. Management management. And who knows what the OPs consumption is a day. Now he has to deal with managing the system to ensure the battery isn’t drained to cater for power cuts etc.

But it’s a good inverter and it seems the software etc does some of it for you. Still not a fan though.
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All I said was it is madness its not on the system and that his system can easily accommodate it. A geyser is 60% of a households consumption. They will learn quickly the limitations with the geyser connected (if any) and I'm sure they will still be happy saving 60%. I also said they can replace 4kW with 3kW to give more headroom for R200.

Its no different from learning you cant run the kettle and airfryer and microwave at the same time on the kitchen circuit.
 
denmendez65 said:
See @wingnut771. Management management. And who knows what the OPs consumption is a day. Now he has to deal with managing the system to ensure the battery isn’t drained to cater for power cuts etc.

But it’s a good inverter and it seems the software etc does some of it for you. Still not a fan though.
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Heat pump, no management, 1200Wh for the equivalent of 4500
 
wingnut771 said:
All I said was it is madness its not on the system and that his system can easily accommodate it. A geyser is 60% of a households consumption. They will learn quickly the limitations with the geyser connected (if any) and I'm sure they will still be happy saving 60%. I also said they can replace 4kW with 3kW to give more headroom for R200.

Its no different from learning you cant run the kettle and airfryer and microwave at the same time on the kitchen circuit.
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Have you tried explaining that to people, even before solar.
 
@OP Yes you can. But.... Start multiple high load items up and you are going to be in for a world of hurt. Timer is a must and you need to baby sit that every day. If its cloudy you need to switch back to Eskom.
1783750847231.png
 
Lupus said:
Have you tried explaining that to people, even before solar.
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wingnut771 said:
All I said was it is madness its not on the system and that his system can easily accommodate it. A geyser is 60% of a households consumption. They will learn quickly the limitations with the geyser connected (if any) and I'm sure they will still be happy saving 60%. I also said they can replace 4kW with 3kW to give more headroom for R200.

Its no different from learning you cant run the kettle and airfryer and microwave at the same time on the kitchen circuit.
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I do.... But I built my solar system to do that. I run the Airfryer and Espresso machine together. with PC on and a water pressure booster pump running at the same time.
 
Magnum said:
I do.... But I built my solar system to do that. I run the Airfryer and Espresso machine together. with PC on and a water pressure booster pump running at the same time.
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Try air fryer, espresso machine and microwave and kettle with geyser off on one kitchen circuit.
 
isie said:
yes you can I run 2 150l geysers on my 8kw Deye , i can run both at the same time 6KW but i dont just to give a bit of headroom.
your 200l 4Kw will be fine
I have them connected under smart load (with my Oven) - - which called Aux on sunsynk if you installer has no idea what this is get another installer.
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This.
1783752939811.png
 
Magnum said:
@OP Yes you can. But.... Start multiple high load items up and you are going to be in for a world of hurt. Timer is a must and you need to baby sit that every day. If its cloudy you need to switch back to Eskom.
View attachment 1921049
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That baby sitting part sucks. Everytime its cloudy you need to sit there and decide whether to start charging the batteries or not off the grid in case power goes out etc.

Solar is supposed to make your life easier, not harder by micro managing such things. I vote for Heatpump. 25k for convenience and not managing anything. No phone calls from the wife as to why she is in the dark at night when you are away etc.

I dont have a HP but the idea is the same, I dont need to manage anything on the solar as geyser is not on inverter. I dont stay at the house anymore as left the country but noone will be calling me for things like why is the water cold, the batteries didnt charge coz the geyser zapped all the generation on a cloudy day, the inverter overloading etc.

@Next Thing put gas geyser to avoid having issues with cold water etc even though his PV system can handle having geysers on the inverter. Convenience over micro managing a system.
 
denmendez65 said:
That baby sitting part sucks. Everytime its cloudy you need to sit there and decide whether to start charging the batteries or not off the grid in case power goes out etc.

Solar is supposed to make your life easier, not harder by micro managing such things. I vote for Heatpump. 25k for convenience and not managing anything. No phone calls from the wife as to why she is in the dark at night when you are away etc.

I dont have a HP but the idea is the same, I dont need to manage anything on the solar as geyser is not on inverter. I dont stay at the house anymore as left the country but noone will be calling me for things like why is the water cold, the batteries didnt charge coz the geyser zapped all the generation on a cloudy day, the inverter overloading etc.

@Next Thing put gas geyser to avoid having issues with cold water etc even though his PV system can handle having geysers on the inverter. Convenience over micro managing a system.
Click to expand...
This is what happens with a sunsynk when its cloudy:
1783756013914.png
 
denmendez65 said:
That baby sitting part sucks. Everytime its cloudy you need to sit there and decide whether to start charging the batteries or not off the grid in case power goes out etc.

Solar is supposed to make your life easier, not harder by micro managing such things. I vote for Heatpump. 25k for convenience and not managing anything. No phone calls from the wife as to why she is in the dark at night when you are away etc.

I dont have a HP but the idea is the same, I dont need to manage anything on the solar as geyser is not on inverter. I dont stay at the house anymore as left the country but noone will be calling me for things like why is the water cold, the batteries didnt charge coz the geyser zapped all the generation on a cloudy day, the inverter overloading etc.

@Next Thing put gas geyser to avoid having issues with cold water etc even though his PV system can handle having geysers on the inverter. Convenience over micro managing a system.
Click to expand...
This is what happens when its ****ing cloudy:
1783756423030.png
 
wingnut771 said:
This is what happens with a sunsynk when its cloudy:
View attachment 1921074
Click to expand...
Can you tell it to start charging off the grid if say by 4pm the battery is below a certain SOC? If the geyser didnt reach temp during the day can you tell the inverter to heat the geyser off the grid outside of the timer hours or is that something the user must manually do?

If there is a power outage and PV is low, does the user have to manually manage the system? Or will it just drain the batteries or rob the charging for batteries by supply the 6 to 8kWh for the geyser?

If it does all this then fine. But if it doesnt then its an incovenience.
 
We had an 8kW Sunsynk with 16x545kWp PV panels and ran both our 150l and 200l, not at the same time though. We have two Geyserwise TSE's and I have an HA automation runs a geyser for 55 minutes, switches it off, starts up the next geyser 5 minutes later, etc. We originally had the geysers on the non-essential side of our inverter but moved them to the essential so we could heat them even if there was no mains supply.
 
denmendez65 said:
Can you tell it to start charging off the grid if say by 4pm the battery is below a certain SOC? If the geyser didnt reach temp during the day can you tell the inverter to heat the geyser off the grid outside of the timer hours or is that something the user must manually do?

If there is a power outage and PV is low, does the user have to manually manage the system? Or will it just drain the batteries or rob the charging for batteries by supply the 6 to 8kWh for the geyser?

If it does all this then fine. But if it doesnt then its an incovenience.
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Yes, you can set SOCs for different times, see pics above, I have 10% minumum during the day, then 5pm I set 20% minimum then overnight it drops to 15% then back to 10%. The geyser will always reach temp, either with solar and/or battery or grid.

No, if there is a power failure and your battery is flat then you sit in the dark duh. How deep down the rabbit hole do you want to go? Sure he can start automating things by spending more money on hardware and and and but that is beyond the scope of this thread. I guess you could flip the geyser breaker if the whatsapp group is going crazy with all the tannies are asking if there is power during a power failure and its cloudy at the same time.
 
denmendez65 said:
Can you tell it to start charging off the grid if say by 4pm the battery is below a certain SOC?
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Sort of, yes. You can tell it to start charging from grid at 4pm to reach a certain target SoC.
Or you can use their AI service to do other more fancy stuff.
Easier just to buy more batteries. :cool:
 
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