Can someone help me calculate kWh and c/kWh?

M

Mimen

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Ok I am not bright enough to work this out. I want to move to prepaid electricity, so I looked at my COJ account to see what my electricity consumption is and that is where I lost the plot, badly.

The cost is R182 per c/kWh.
My daily average consumption is 4.7 kWh pm.
 
Last edited:
acidrain

acidrain

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4 units a day? Probably reading wrong because that is not possible.
 
ChuckMeFarley

ChuckMeFarley

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Maybe OP meant block 4?

• Block 1(0-50 kWh) is set at 90c per kWh.

• Block 2 (51-350 kWh) will be 112c per kWh.

• Block 3 (351-600 kWh is set at 165c per kWh.

• Block 4 ( more than 600 kWh) is set at 194c per kWh.
 
W

WAslayer

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Assuming you mean yourur daily average consumption is 4kWh, the math is:

4x 182c = daily cost on prepaid..

4 does seem quite low, unless you are single and use very little hot water and don't cook every night using the stove and oven..
 
Lupus

Lupus

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So you only use 120units a month? You shouldn't be paying R1.82 a unit than, you would be around R1.34 or so.
But if you're only using 120 units a month, than you'll only be buying that many units on prepaid.
 
M

Mimen

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I'm making everyone confused and don't seem to be able to edit the the original post.
My average daily consumption is 4.7 kWh.
And my bill is between 700 to 800 pm.
 
S

Steamy Tom

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Mimen said:
I'm making everyone confused and don't seem to be able to edit the the original post.
My average daily consumption is 4.7 kWh.
And my bill is between 700 to 800 pm.
Click to expand...

can't be, even on the heighest tier that wouldn't add up? or do you have network charges?
 
isie

isie

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Mimen said:
I'm making everyone confused and don't seem to be able to edit the the original post.
My average daily consumption is 4.7 kWh.
And my bill is between 700 to 800 pm.
Click to expand...


We all going to make assumptions based on what you say 4.7KW per day that means in a 30 day month you use only 141 KW?
So based on city power tariffs you should only be paying like 200 bucks for electricity plus whatever network charges they add in - nowhere near what you paying.
I think you not reading your bill correctly?


why don't you post the part of your bill so we can see your monthly usage?
 
I

Izzit

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also check if its Actual reading or Estimate reading. you might be getting charged on estimate reading.
 
$m@Rt@$$

$m@Rt@$$

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Mimen said:
Ok I am not bright enough to work this out. I want to move to prepaid electricity, so I looked at my COJ account to see what my electricity consumption is and that is where I lost the plot, badly.

The cost is R182 per c/kWh.
My daily average consumption is 4.7 kWh pm.
Click to expand...

I would love to know how I can get away with that haha.
 
Athos

Athos

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I have just moved to prepaid.

Prepaid tariffs for City of Jorburg (COJ) 2019/2020 are:

Block 1 (0 - 350 kWh) = R 1.60 per kWh inc. VAT
Block 2 (351 - 500 kWh) = R 1.84 per kWh inc. VAT
Block 3 (500+kWh) = R 2.10 per kWh inc. VAT

On prepaid you have zero connection fees (network surcharge, service charge, network charge).

Postpaid tariffs for COJ 2019/2020 single phase 60A are:

Block 1 (0 - 500 kWh) = R 1.54 per kWh inc. VAT
Block 2 (501 - 1000 kWh) = R 1.77 per kWh inc. VAT
Block 3 (1001 - 2000 kWh) = R 1.90 per kWh inc. VAT

Network surcharge = +- R 25 incl. VAT
Service charge = R 159.95 incl. VAT
Network charge = R 471.21 incl. VAT

Maths for your situation:

Prepaid:

4.7 kWh per day * 31 days = 145.7 kWh per month

145.7 kWh falls within block 1 for prepaid so the tariff is R 1.60 per kWh
145.7 kWh * R 1.60 = R 233.12.

Total for month = electricity cost + network surcharge + service charge + network charge
Total for the month = R 233.12 + R 0 + R 0 + R 0
Total for the month prepaid = R 233.12

Postpaid Single Phase 60A:

145.7 kWh in block 1 at R 1.54 per kWh
145.7 kWh * R 1.54 = R 224.38

Total for month = R 224.38 + R 25 + R 159.95 + R 471.21
Total for month postpaid = R 880.54

In summary change to prepaid.

Cost of changing to prepaid is +- R 1000

I paid R 977.

Good luck
 
Last edited:
Athos

Athos

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acidrain said:
4 units a day? Probably reading wrong because that is not possible.
Click to expand...

This is possible if it is 1 person and they have a solar/gas geyser and gas stove.

I have a tenant in a flat in Sandton with an electric geyser and electric oven/stove and they are using approximately 6.2 units a day in summer.
 
Neuk_

Neuk_

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Athos said:
I have just moved to prepaid.

Prepaid tariffs for City of Jorburg (COJ) 2019/2020 are:

Block 1 (0 - 350 kWh) = R 1.60 per kWh inc. VAT
Block 2 (351 - 500 kWh) = R 1.84 per kWh inc. VAT
Block 3 (500+kWh) = R 2.10 per kWh inc. VAT

On prepaid you have zero connection fees (network surcharge, service charge, network charge).

Postpaid tariffs for COJ 2019/2020 single phase 60A are:

Block 1 (0 - 500 kWh) = R 1.54 per kWh inc. VAT
Block 2 (501 - 1000 kWh) = R 1.77 per kWh inc. VAT
Block 3 (1001 - 2000 kWh) = R 1.90 per kWh inc. VAT

Network surcharge = +- R 25 incl. VAT
Service charge = R 159.95 incl. VAT
Network charge = R 471.21 incl. VAT

Maths for your situation:

Prepaid:

4.7 kWh per day * 31 days = 145.7 kWh per month

145.7 kWh falls within block 1 for prepaid so the tariff is R 1.60 per kWh
145.7 kWh * R 1.60 = R 233.12.

Total for month = electricity cost + network surcharge + service charge + network charge
Total for the month = R 233.12 + R 0 + R 0 + R 0
Total for the month prepaid = R 233.12

Postpaid Single Phase 60A:

145.7 kWh in block 1 at R 1.54 per kWh
145.7 kWh * R 1.54 = R 224.38

Total for month = R 224.38 + R 25 + R 159.95 + R 471.21
Total for month postpaid = R 880.54

In summary change to prepaid.

Cost of changing to prepaid is +- R 1000

I paid R 977.

Good luck
Click to expand...

Yeah, COJ charges us a small fortune before we even use 1kWh so I plan to move to prepaid in the future.
 
Neuk_

Neuk_

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Athos said:
This is possible if it is 1 person and they have a solar/gas geyser and gas stove.

I have a tenant in a flat in Sandton with an electric geyser and electric oven/stove and they are using approximately 6.2 units a day in summer.
Click to expand...

Yeah, a colleague of mine uses around 8kWh per day, solar geyser with gas stove.
 
isie

isie

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Messages
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Athos said:
I have just moved to prepaid.

Prepaid tariffs for City of Jorburg (COJ) 2019/2020 are:

Block 1 (0 - 350 kWh) = R 1.60 per kWh inc. VAT
Block 2 (351 - 500 kWh) = R 1.84 per kWh inc. VAT
Block 3 (500+kWh) = R 2.10 per kWh inc. VAT

On prepaid you have zero connection fees (network surcharge, service charge, network charge).

Postpaid tariffs for COJ 2019/2020 single phase 60A are:

Block 1 (0 - 500 kWh) = R 1.54 per kWh inc. VAT
Block 2 (501 - 1000 kWh) = R 1.77 per kWh inc. VAT
Block 3 (1001 - 2000 kWh) = R 1.90 per kWh inc. VAT

Network surcharge = +- R 25 incl. VAT
Service charge = R 159.95 incl. VAT
Network charge = R 471.21 incl. VAT

Maths for your situation:

Prepaid:

4.7 kWh per day * 31 days = 145.7 kWh per month

145.7 kWh falls within block 1 for prepaid so the tariff is R 1.60 per kWh
145.7 kWh * R 1.60 = R 233.12.

Total for month = electricity cost + network surcharge + service charge + network charge
Total for the month = R 233.12 + R 0 + R 0 + R 0
Total for the month prepaid = R 233.12

Postpaid Single Phase 60A:

145.7 kWh in block 1 at R 1.54 per kWh
145.7 kWh * R 1.54 = R 224.38

Total for month = R 224.38 + R 25 + R 159.95 + R 471.21
Total for month postpaid = R 880.54

In summary change to prepaid.

Cost of changing to prepaid is +- R 1000

I paid R 977.

Good luck
Click to expand...
Athos said:
This is possible if it is 1 person and they have a solar/gas geyser and gas stove.

I have a tenant in a flat in Sandton with an electric geyser and electric oven/stove and they are using approximately 6.2 units a day in summer.
Click to expand...

isn't the network charge if you above 500KW - so if OP is at 4KW a day he wont be charged that?
 
Athos

Athos

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Messages
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isie said:
isn't the network charge if you above 500KW - so if OP is at 4KW a day he wont be charged that?
Click to expand...

Nope, if you use zero kWh a month you still pay for the connection charges. Those are a flat rate. Check the tariff information on City Power webiste. City Power Tariff Info

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Last edited:
phoneJunky

phoneJunky

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Athos said:
This is possible if it is 1 person and they have a solar/gas geyser and gas stove.

I have a tenant in a flat in Sandton with an electric geyser and electric oven/stove and they are using approximately 6.2 units a day in summer.
Click to expand...

Well we are currently two people and that (4.7 units) is my winter usage. Summer I am averaging at 2.7-3 units a day. Solar geyser (was sized for 4 people), don't do cooking with electricity and led/cfl lighting. (over my last year cycle)
 
Toxxyc

Toxxyc

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Messages
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Mimen said:
I'm making everyone confused and don't seem to be able to edit the the original post.
My average daily consumption is 4.7 kWh.
And my bill is between 700 to 800 pm.
Click to expand...
I think FNB is overcharging you for electricity. At 4.7kWh, you'll only use like ~R260's worth of power a month.
 
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