Cost to charge maths !!!

[Headgas1]

Hi I am using the granny to regularly charge and I just wanted some confirmation on the maths I am applying. So the 3 kw charger pulls about 2.2kw per hour so for 12 hours is
12hr x 2.2 kw x .019 cost = £5.16 cost to me I hope I am fairly confident but you know how we doubt ourselves

Thanks

 

[jamesie]

12hr x 2.2 kw x .019 cost = £5.16

Shoud be 12hr x 2.2 kw x 0.19 cost = £5.016

 

[Jomarkh]

About £5 then for 26kW, over half the battery.
Is that every day.

 

[weedavemac]

Did you add 5% for VAT?

 

[Headgas1]

@Jomarkh not every day mostly once a week sometimes twice

 

[weedavemac]

@weedavemac no not every day mostly once a week sometimes 2

You only add the VAT on once or twice a week? Interesting accounting technique....

 

[Headgas1]

You only add the VAT on once or twice a week? Interesting accounting technique....

R u joking vat ? Otherwise I don’t get it

 

[Alb]

You can be more precise about consumption if you have a smart meter set up for half hourly readings.

 

[Headgas1]

You can be more precise about consumption if you have a smart meter set up for half hourly readings.

Yep your deffo right @Alb i am just basing my consumption on what I have read about the granny charger pulling about 2.2 kw an hour

 

[marcopolomt]

all i would say is move to octopus go. much better paying 5p/kwh than 19.

 

[Jomarkh]

If you are only charging for 12 hours once or twice a week on a 3kw unit it would take a while to get your money back on a home charger and Octopus Go at 5p plus the day rate is well over 19p now.

 

[Alb]

You can use the Granny via a timeswitch on Go.
That's how I charged before I had my Hypervolt installed.

 

[Gomev]

all i would say is move to octopus go. much better paying 5p/kwh than 19.

From the Octopus website, they won't even quote you to swap to them.

Right now, energy prices are at record highs, and most homes will be better off staying with their current energy supplier for the winter.

If your fixed term is coming to an end, don't choose a new tariff or switch supplier.

Instead, let your supplier automatically move you to their default tariff, so your prices are protected by the Government's Energy Price Cap.

 

[Slipstream]

If you are only charging for 12 hours once or twice a week on a 3kw unit it would take a while to get your money back on a home charger and Octopus Go at 5p plus the day rate is well over 19p now.

I'm paying 15.83 pence day rate on octopus go.

 

[JimB]

Hi I am using the granny to regularly charge and I just wanted some confirmation on the maths I am applying. So the 3 kw charger pulls about 2.2kw per hour so for 12 hours is
12hr x 2.2 kw x .019 cost = £5.16 cost to me I hope I am fairly confident but you know how we doubt ourselves

Thanks

You typed your decimal point slightly incorrectly but it looks like your arithmetic is pretty much spot on.

Don't even think about changing suppliers at the moment unless you enjoy being .......well. you know the usually enjoyable if short-lived experience

 

[Gomev]

I'm paying 15.83 pence day rate on octopus go.

The new daily rate for Octopus Go if you switch to it in my area is 23.41p / kWh with a daily standing charge of 21.06p. Still 5p for the 4 hours overnight.

 

[JimB]

The new daily rate for Octopus Go if you switch to it in my area is 23.41p / kWh with a daily standing charge of 21.06p. Still 5p for the 4 hours overnight.

That's good. I also have Octopus go. Didn't think they'd still be offering that in the current mayhem.

 

[Headgas1]

From the Octopus website, they won't even quote you to swap to them.

Right now, energy prices are at record highs, and most homes will be better off staying with their current energy supplier for the winter.

If your fixed term is coming to an end, don't choose a new tariff or switch supplier.

Instead, let your supplier automatically move you to their default tariff, so your prices are protected by the Government's Energy Price Ca

It’s all gone a bit mental you can’t move to different suppliers at the moment my mates supplier went bust and his bill jumped by £1000 overnight , just glad I have a fixed rate at the moment

 

[Alb]

I was very lucky in my timing when I went onto Octopus Go because I just made it onto the 2018 tariff so my daily rate is only 13.72p/kWh. They introduced the 2021 tariff just a few days later.

 

[Jomarkh]

Has you gas increased or did you fix it?