Are EV Tariffs Worth It?

Author
Discussion

48k

Original Poster:

13,093 posts

148 months

Friday 26th November 2021
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My current tariff with EDF comes up for renewal soon and having recently taking the plunge with an EV I was considering switching to an EV tariff.

It appears that the "EV friendly" tariffs such as Octopus go give you a super cheap overnight window (eg. 4 hours at 5p/kWh) at the expense of the other 20 hours being much higher (eg. 23.77p/kWh with a standing charge of 18.01p per day). Plus having to have a SMETS2 meter fitted.

My current tariff is 13.06p/kWh with a standing charge of 20.48p per day.

On the face of it, it doesn't seem worth switching. Has anyone switched and actually saved money on their bill overall? Would be interested hear peoples experiences and see the fag packet maths.

Dave Hedgehog

14,563 posts

204 months

Friday 26th November 2021
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the problem is the energy market is in chaos and prices for new tarrifs are massive

you will have to work out how much you will use on each tarrif to see if you can save money

i currently use 300kWh on 5p and 400kWh on 14p each month driving 10k a year



Edited by Dave Hedgehog on Friday 26th November 11:20

sjg

7,452 posts

265 months

Friday 26th November 2021
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Glad I switched to Octopus Go back in May, 15.9p daytime and 5p off-peak.

I think if you're doing enough miles (70+ a day) to do a decent charge most days and you're shifting dishwasher / washing machine use into the off-peak time it can be worth it. Otherwise just stay on variable (which will be capped) and see what's around in spring.

48k

Original Poster:

13,093 posts

148 months

Friday 26th November 2021
quotequote all
sjg said:
Glad I switched to Octopus Go back in May, 15.9p daytime and 5p off-peak.

I think if you're doing enough miles (70+ a day) to do a decent charge most days and you're shifting dishwasher / washing machine use into the off-peak time it can be worth it. Otherwise just stay on variable (which will be capped) and see what's around in spring.
That was my thinking. It feels like the cheap EV tariff ship has sailed. My mileage will be low <6000 per annum. And whilst not a powerfully built director, I don't want to live my life checking the time before I put the dishwasher on.

georgeyboy12345

3,518 posts

35 months

Friday 26th November 2021
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Yeah it’s not worth switching at the moment as prices are so high. Still a fraction of the cost of petrol or diesel though.

cowbit

62 posts

41 months

Friday 26th November 2021
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My EDF tariff “Go Electric 23” gives 10 hours cheap electricity every night, currently from 9pm to 7am and all weekend. The tariff depends on where you are in the country but you can find out from their website or app.

DJP31

232 posts

104 months

Friday 26th November 2021
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I reached the same conclusion as the OP. Whilst the tariff was EV friendly the rest of it definately wasn't friendly- and that makes up far more of the energy usage than the car ever would.


JD

2,777 posts

228 months

Friday 26th November 2021
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48k said:
My current tariff with EDF comes up for renewal soon and having recently taking the plunge with an EV I was considering switching to an EV tariff.

It appears that the "EV friendly" tariffs such as Octopus go give you a super cheap overnight window (eg. 4 hours at 5p/kWh) at the expense of the other 20 hours being much higher (eg. 23.77p/kWh with a standing charge of 18.01p per day). Plus having to have a SMETS2 meter fitted.

My current tariff is 13.06p/kWh with a standing charge of 20.48p per day.

On the face of it, it doesn't seem worth switching. Has anyone switched and actually saved money on their bill overall? Would be interested hear peoples experiences and see the fag packet maths.
You are comparing your soon to expire tariff with the currently available EV tariff, what is the best normal tariff you can achieve at the moment?

I am on an 8.30pm EV tariff, and only have a PHEV, and 80% of usage is within the off peak period.

superpp

392 posts

198 months

Friday 26th November 2021
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You need to compare the Octopus Go rates against what you will be paying as soon as your current discount period finishes, not your current tariff.

48k

Original Poster:

13,093 posts

148 months

Friday 26th November 2021
quotequote all
Yes fair points - if I do nothing, come 1st January it will default to the standard (capped) variable rate tariff of 20.31p / kWh with a 23.77p standing charge. So 7p per hour and 3p per day more than I'm currently paying, and no need a meter change. Switching to eg. Octopus Go would mean paying 10.7p per hour more and 2.47p per day less plus a meter upgrade, to get the 4 hour cheap charging window at 5p / kWh. So to me it still doesn't feel worth changing to an EV tariff because the 20 hours a day is where the bulk of my usage is. I'm interested to see how others make it work and I realise quoting Octopus Go is a sample size of 1 so keen to hear what other EV tariffs people use.

Pica-Pica

13,804 posts

84 months

Friday 26th November 2021
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georgeyboy12345 said:
Yeah it’s not worth switching at the moment as prices are so high. Still a fraction of the cost of petrol or diesel though.
Just think about the depreciation cost though, your biggest annual cost.

Mikehig

741 posts

61 months

Friday 26th November 2021
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Even with the latest increases home charging still has a big advantage as public charging prices are going up substantially soon:
https://www.autocar.co.uk/car-news/business-enviro...

The worry - for all of us, not just EV users - is what will happen at the next review of the price cap in March/April. There's talk of huge increases.

Knock_knock

573 posts

176 months

Friday 26th November 2021
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I'm on Go Faster (so get 5 hours cheap).

Last bill breakdown:

850kWh @ 5.24p/kWh - £44.50
771kWh @ 13.14p/kWh - £101.40

So overall I paid 9.00p/kWh, which is really rather good.


If the day rate goes up to 23p, but the night rate stays the same (which is what seems to be happening) I would have paid:

850kWh @ 5.24p/kWh - £44.50
771kWh @ 23.00kWh - £177.33

Which would be 13.68p/kWh, which is still pretty good.


As you can see, a significant proportion of usage is shifted to the cheap hours, but there's quite a financial incentive to do so.

JD

2,777 posts

228 months

Friday 26th November 2021
quotequote all
48k said:
Yes fair points - if I do nothing, come 1st January it will default to the standard (capped) variable rate tariff of 20.31p / kWh with a 23.77p standing charge. So 7p per hour and 3p per day more than I'm currently paying, and no need a meter change. Switching to eg. Octopus Go would mean paying 10.7p per hour more and 2.47p per day less plus a meter upgrade, to get the 4 hour cheap charging window at 5p / kWh. So to me it still doesn't feel worth changing to an EV tariff because the 20 hours a day is where the bulk of my usage is. I'm interested to see how others make it work and I realise quoting Octopus Go is a sample size of 1 so keen to hear what other EV tariffs people use.
You are going to use about 8.5 kWh per car using day, so maybe 166kWh a month (20 days) Thats a £31 difference between GO and the Variable just from car usage and standing charge.

You would need to use over 895kWh in the peak period per month to make the normal tariff be cheaper. Thats 30kWh a day.

Please someone double check my maths.

I am on a tariff called Go Faster, the off peak rate is from 20.30 - 01.30, this is when 80% of my overall usage is, I frequently cook my dinner in this time, am not always home in the day time, am watching TV at this time, and run the big appliances in this time.

TheDrownedApe

1,032 posts

56 months

Friday 26th November 2021
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Yeah i luckily switched in May/June to Go and am reaping the benefits.

We don't do a lot of miles (suspect 700 in the month) but stick the dishwasher on during 5p rates too.



I suspect an EV tariff is still useful; but you need to be doing the miles to make the most of the times. It's shouldn't be too hard to work it out.

Look at your forecasted monthly mileage, work out an average "efficiency" ( i chose 3.4 mKwh as it matches my heavy right foot) do the simple math to attain your kwh of charge you are likely to use.
700 miles a month = 205 kwh of "charge" @ whatever rate.

You know what you use now as an estimated monthly general kwh usage etcetc

caveat - slightly drunk but i think i'm right

48k

Original Poster:

13,093 posts

148 months

Friday 26th November 2021
quotequote all
It will certainly be interesting to see what mileage I end up doing. I've not had a car for three months, and I work from home so hardly leave the house at the moment. The car is leased + insured for 6000 miles per annum which was the lowest figure I could get. Last 12 months leccy usage was just over 8800kWh.

agent006

12,039 posts

264 months

Friday 26th November 2021
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Mikehig said:
The worry - for all of us, not just EV users - is what will happen at the next review of the price cap in March/April. There's talk of huge increases.
From some recent rough maths when I considered switching our EV and going back to ICE, it would need to be over 50p/kWh before it's price per mile comparable with a 45mpg diesel at £1.45/L

SWoll

18,405 posts

258 months

Saturday 27th November 2021
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agent006 said:
Mikehig said:
The worry - for all of us, not just EV users - is what will happen at the next review of the price cap in March/April. There's talk of huge increases.
From some recent rough maths when I considered switching our EV and going back to ICE, it would need to be over 50p/kWh before it's price per mile comparable with a 45mpg diesel at £1.45/L
It's around 65p per kWh for us comparing an eTron 55 v Q7 55 (2.3 miles/kW v 26mpg) and TBH even if fuel costs were comparable I'd still pick the EV due to the convenience of home charging and superior drive train for everyday use.

phil4

1,216 posts

238 months

Saturday 27th November 2021
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To the OP you've said a few times that an EV tariff will need a meter change. I read that as you think it'll cost you. It doesn't... at least not directly.

Yes, we the consumer are paying for all the meters in our energy bill, but no, when they fit you a smart meter (it's not smart, at all), it costs you nothing, not even the fitting.

gmaz

4,403 posts

210 months

Saturday 27th November 2021
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Its certainly worth it if you can add solar and a home battery. I charge up the battery during the cheap period, depending on how much sun is predicted for the following day