coj off-grid process

denmendez65 said:
I will post the final update when i see the electricity portion removed off the bill. But otherwise, there you have it. It is possible to go off-grid in JHB. No need for some people on here to spread all the stories about how its not possible yada yada.

And the fact that 1 CP technician is disconnecting 3 to 4 houses a week for off-grid applications means its more widespread than people thought.
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Never understood why people thought it wasn't possible. Oh wait they were weird deluded people who wouldn't listen to reason.
 
Lupus said:
Never understood why people thought it wasn't possible. Oh wait they were weird deluded people who wouldn't listen to reason.
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I think they were talking about Cape Town. Let’s see someone show the process for there. Hopefully it’s as efficient as renewing drivers card.
 
wingnut771 said:
I think they were talking about Cape Town. Let’s see someone show the process for there. Hopefully it’s as efficient as renewing drivers card.
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Nope it was all over, apparently the government will never allow it.
CoCT also allows it some users here have done it.
 
denmendez65 said:
True. Off-grid with Gel batteries. Even the CP guy (he has solar at his house) was surprised. Even more surprising to him was the size of the inverter:ROFL:
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Yup, another misconception, you need to have a biiiig system to be off-grid. It's like no, you need a system that is suitable for your lifestyle.
 
Ama-Zing Rabobi said:
Exactly. You only need to have a biiiig system to be off grid without thinking about your consumption.
There are benefit to knowing what your parameters are. A bit more effort, sure, but we have people on this forum with the time and inclination to set up home assistant, automated media downloaders, blah blah... it's just another thing to manage, it's not that hard either.
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The best is to have a system you dont have to manage, if the load is efficient and mostly everything automated. You almost never have to manage anything. I dont check my consumption anymore as everything is automated to come on at certain times, appliances are modern and very efficient etc.

I just let the system do its thing. And the batteries are holding up well, I always have toast in the morning (2kW toaster) and with GELs when they get older the voltage drop typically makes the inverter switch off but they supply the toaster fine and with quite a bit of headroom above the cut off. My kitchen is on non-essential so when the cut off gets hit too often with large loads in the morning then I will know I need to look at Lithium.

Good news is 1 year of not paying the fixed charges is about 16k. And a 8Kwh DIY bank is 14k. Will put aside 1k every month for "Solar Maintenance". Better than giving it to the GVT.
 
Segg said:
I’m guessing a decent sized solar array and no air cons then? My system is also 12kw with max 6 of discharge in case of a grid fault etc
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No aircons but can add at least 2 comfortably as from @wingnut771 personal use, they don’t use much when they run.

Array is plenty big enough for me as charged up by 9 most days.
 
Ama-Zing Rabobi said:
I'm pretty sure that's wrong.
My 36000 btu Alliance peaks at 3kw.
Your calcs say 7 aircons with an average of 15800BTU are drawing 1.4kw each on average at peak.

....actually then again, that looks feasable now that I do that math... my bad.
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Afaik, daikon have a patent on their efficient compressor and are apparently more efficient than normal inverter aircons.
 
My cheap ass tcl 12000btu uses 250W at temp and peaks at 1.2kW. So not sure how much more efficient daikons are.
 
denmendez65 said:
Maybe i am not reading the datasheet right, but it looks like they use around 25W to cool.
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That can't be right. Thats crazy. Didn't read the pdf though lol. My midea uses around 200w through the night when the rooms down to temp. Last night my wife left the room door open and it used around 800wh.
 
Hazy_Living@79 said:
That can't be right. Thats crazy. Didn't read the pdf though lol. My midea uses around 200w through the night when the rooms down to temp. Last night my wife left the room door open and it used around 800wh.
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The section that says input power. Says about 25W. It does sound very low. And i clicked on the 12000btu version. If true then technology has come a long way.
 
wingnut771 said:
3 x 24000BTU + 1 x 12000BTU + 3 x 9000BTU Daikon inverter aircons use 1.5kW when at temp after peaking at 10kW.
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From the Daiken technical brochure, what am I missing here? Power input 0.04kW = 40 watts? Surely this isn't correct?

Screenshot 2026-02-23 131540.jpg


From the same manual, but further down 0.37A x 220v = 82w?

Screenshot 2026-02-23 131903.jpg

These values seem completely impossible for heating and cooling or am I missing the plot completely here? 😅
 
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