Why solar is such a f_ckup.

Pak Fa Fui said:
Geoff asked why are they using so many panels
It is not wrong but they are upselling and over compensating with their installs, now if there ever is a stage 8 then you are better off
If there is no stage 8, then you just wasted about R50000
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I don't agree
We buy an expensive battery and inverter
The way you get your money back is with the amount of panels

ie that is what brings the returns


Unfortunately you have to enlarge it (edit :batteries) too if you use most electricity after hours
 
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Guys for a flat with two people do you think one 5kw lithium-ion battery will be enough. We can't add panels so most of the big appliances won't be on. It's mostly more plugs, lights, laptops, internet, ps5, tv and fridge. Or do you think I should add two 5kw batteries?
 
Nickster said:
Guys for a flat with two people do you think one 5kw lithium-ion battery will be enough. We can't add panels so most of the big appliances won't be on. It's mostly more plugs, lights, laptops, internet, ps5, tv and fridge. Or do you think I should add two 5kw batteries?
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More is always better, but the question is what you want to achieve. If you just want to keep the lights/fridges/internet on then 5kwh should get you through 4 hours of LS. If you want to go on as normal, 5kwh might be too light.
 
Nickster said:
Guys for a flat with two people do you think one 5kw lithium-ion battery will be enough. We can't add panels so most of the big appliances won't be on. It's mostly more plugs, lights, laptops, internet, ps5, tv and fridge. Or do you think I should add two 5kw batteries?
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I run my house from a 5kw Sunsynk inverter x a 5kwh lithium battery during loadshedding. Everything's connected except the stoves and geysers. Neither the 2 or 4 and a half hour loadshedding sessions are an issue.
 
Katelknaap said:
I run my house from a 5kw Sunsynk inverter x a 5kwh lithium battery during loadshedding. Everything's connected except the stoves and geysers. Neither the 2 or 4 and a half hour loadshedding sessions are an issue.
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Do you have panels at all? My concern is the coming winter where we might be indefinitely in stage 6. Will the gaps between loadshedding be enough to charge the battery if its only 1. I can't go the solar route due to being in an apartment.
 
Nickster said:
Do you have panels at all? My concern is the coming winter where we might be indefinitely in stage 6. Will the gaps between loadshedding be enough to charge the battery if its only 1. I can't go the solar route due to being in an apartment.
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One battery can recharge in 1 hour.
 
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Nickster said:
Do you have panels at all? My concern is the coming winter where we might be indefinitely in stage 6. Will the gaps between loadshedding be enough to charge the battery if its only 1. I can't go the solar route due to being in an apartment.
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If the gap isn't enough to recharge 1 battery, it won't be enough to recharge 2 either. Your cycles will just not be as deep.

But it should be enough to recharge.
 
Nickster said:
Do you have panels at all? My concern is the coming winter where we might be indefinitely in stage 6. Will the gaps between loadshedding be enough to charge the battery if its only 1. I can't go the solar route due to being in an apartment.
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An additional battery will not be of much help; what you actually need is a charger that can charge the one battery fast enough.
 
wingnut771 said:
One battery can recharge in 1 hour.
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If the inverter is up to it

Ie mine the max it can do is 60A so just under 3kwh charge in an hour so 1hr40 min for a 5kwh

Recharge what i take out in 4hrs in about 2hrs40 min

7.5kwh
 
Nickster said:
Do you have panels at all? My concern is the coming winter where we might be indefinitely in stage 6. Will the gaps between loadshedding be enough to charge the battery if its only 1. I can't go the solar route due to being in an apartment.
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Man that sucks. PV panels are what make all the difference.
 
With the huge adoption of inverter battery systems (without PV or limited PV panels) and charging when power is available is making it incrementally worse for ourselves as adoption accelerates.
 
Nickster said:
Do you have panels at all? My concern is the coming winter where we might be indefinitely in stage 6. Will the gaps between loadshedding be enough to charge the battery if its only 1. I can't go the solar route due to being in an apartment.
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No panels yet (working on it) but the battery charges up very quickly (less than an hour normally).
 
Just remember that most battery chemistries don't like being charged too fast. LiFePO4 isn't as sensitive to this but you do get more cycles out of them if you charge and discharge them more slowly. I don't think we'll have load shedding where the "on time" is less than 2 hours so I'd work on 0.5C max charge rate.

For example my 5kWh BSLBatt batteries are 1C so I can discharge at 100A but the max recommended charge rate is 0.5C or 50A. I charge mine at 40A to be gentler on them.
 
quovadis said:
With the huge adoption of inverter battery systems (without PV or limited PV panels) and charging when power is available is making it incrementally worse for ourselves as adoption accelerates.
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Which will hasten phase 2 panels to free it up again

Edit :in the day at least
 
The problem is eskom is heading to the quantity thet they can generate reliably

Lets hope it isn't nothing
 
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