What tarrif?

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Discussion

Otispunkmeyer

Original Poster:

12,873 posts

160 months

Saturday 9th September 2023
quotequote all
I know this probably isn't the place....however there is an EV involved!

So our energy fix is ending in October. All being normal I think I'd just let it float on the variable for a bit and see what happens. There are fixes for below the July price cap, but the cap is down again in October and then may well be up again in Jan. So not really sure fixing is gonna do anything.

However at the same time we are also taking delivery of a Kia EV6. Our first EV. And we do plan to use it a lot. Other things:

1) wife works from home a lot. So day time use is a thing.
2) we also need gas for water/heating.
3) meter is old disc type so would likely need a smart meter if we do anything other than stick with a standard tarrif.
4) we do have a Rolec wallbox. It's a type 2. It was installed maybe 6 years ago now as part of a trial we got involved with. So it was free, however they only saw fit to make it no better than a granny charger. It's only got a 16A fuse on the main consumer unit and so I guess it will only ever give 3.3kW or thereabouts.

Assuming octopus are taking new customers. Does it make sense to try get on their intelligent tariff? With the super cheap night rate and normal day rate? (7.5p/27p). I'd have to sort a separate gas tarrif.

Due to how slow the charger is I suspect I'd only ever get about 18kwh into the car at the cheap rate. Should I also look at investing in a 7kW upgrade? (We do actually have 3 phase coming to the house so possibly I could get 22kW!)

theboss

7,074 posts

224 months

Saturday 9th September 2023
quotequote all
3 phase is a no brainer if you already have a 3ph supply or are in the process of getting one

Besides the obvious fact that you can charge a large battery car at 22kw inside a 4-6hr cheap window, you have the added flexibility of eg being able to install two chargers and charge two cars simultaneously, should you decide that EVs are so good that you need another one.

jamesbilluk

3,910 posts

188 months

Saturday 9th September 2023
quotequote all
I have OVO charge anytime, it’s an add on to a normal economy 7 tariff from them. I find it brilliant, the app communicates with the Jaguar connect app. I set when I want the car to be ready, and how much charge you want.

Good thing about it is that it can charge the car in the day time at the cheap rate if it can find some, and doesn’t seem to have a cut off time either, it will charge the car at 10p/kWh, but the day time it will just be the normal tariff prices.

At the end of the month, the credit that you’ve saved each month will then added to your account. I usually save about £40-£70 each month

I use it with a Pod Point.

https://www.ovoenergy.com/electric-cars/charge-any...

plfrench

2,709 posts

273 months

Saturday 9th September 2023
quotequote all
I second Ovo Anytime,

Typically getting a £120 / month credit. Also, on top of this, they have their Power Challenge or whatever it is called. This seems to bring a bit of gamification to using electricity more considerately. Current challenge is to use less than 12.5% of your total electricity between the hours of 4pm-7pm Mon-Fri. Every month you do this, you get another £10 credit.

This is a bit of an easy one with two cars charging generally between 1am and 7am, as they take the lion's share of our electricity usage, so easy bonus!

annodomini2

6,899 posts

256 months

Sunday 10th September 2023
quotequote all
Octopus Intelligent is a flexible tariff, not fixed, so they can provide the discounted "normal" rate.

You can take gas with Octopus, if that's beneficial for you.

The main difference between the Octopus tariff vs Ovo is the discount rate only applies to the EV charging with Ovo, whereas with Octopus it's the whole house while the Car is charging.

blank

3,545 posts

193 months

Sunday 10th September 2023
quotequote all
jamesbilluk said:
I have OVO charge anytime, it’s an add on to a normal economy 7 tariff from them. I find it brilliant, the app communicates with the Jaguar connect app. I set when I want the car to be ready, and how much charge you want.

Good thing about it is that it can charge the car in the day time at the cheap rate if it can find some, and doesn’t seem to have a cut off time either, it will charge the car at 10p/kWh, but the day time it will just be the normal tariff prices.

At the end of the month, the credit that you’ve saved each month will then added to your account. I usually save about £40-£70 each month

I use it with a Pod Point.

https://www.ovoenergy.com/electric-cars/charge-any...
Have you noticed the refunds are calculated against the day rate (32p for me) even if it charges at night (20p rate for me)? This means they actually pay me 2p/kWh to charge the car. I'm sure that's not how it's supposed to be though!

Otispunkmeyer

Original Poster:

12,873 posts

160 months

Sunday 10th September 2023
quotequote all
Ahh yes, I forgot about OVO.

I'll have a look at them too.

I think I might just give both a ring and see what they suggest, its a bit unclear trying to work out what is best via their websites.

Otispunkmeyer

Original Poster:

12,873 posts

160 months

Sunday 10th September 2023
quotequote all
theboss said:
3 phase is a no brainer if you already have a 3ph supply or are in the process of getting one

Besides the obvious fact that you can charge a large battery car at 22kw inside a 4-6hr cheap window, you have the added flexibility of eg being able to install two chargers and charge two cars simultaneously, should you decide that EVs are so good that you need another one.
Yeah, so last time an electrician was round he remarked "oh you've got three-phase coming in here". He wasn't expecting that. Now, for the house only 1 phase has been tapped off.

How much hassle is it to tap off the other two and go to a charger? presumably I'd also need a new meter or even a separate meter as the rest of the house obviously wouldn't need 3-phase.

Knock_knock

585 posts

181 months

Sunday 10th September 2023
quotequote all
Otispunkmeyer said:
However at the same time we are also taking delivery of a Kia EV6. Our first EV. And we do plan to use it a lot. Other things:

1) wife works from home a lot. So day time use is a thing.
2) we also need gas for water/heating.
3) meter is old disc type so would likely need a smart meter if we do anything other than stick with a standard tarrif.
4) we do have a Rolec wallbox. It's a type 2. It was installed maybe 6 years ago now as part of a trial we got involved with. So it was free, however they only saw fit to make it no better than a granny charger. It's only got a 16A fuse on the main consumer unit and so I guess it will only ever give 3.3kW or thereabouts.

Assuming octopus are taking new customers. Does it make sense to try get on their intelligent tariff? With the super cheap night rate and normal day rate? (7.5p/27p). I'd have to sort a separate gas tarrif.

Due to how slow the charger is I suspect I'd only ever get about 18kwh into the car at the cheap rate. Should I also look at investing in a 7kW upgrade? (We do actually have 3 phase coming to the house so possibly I could get 22kW!)
I am on Intelligent Octopus and very much like it, and have 7kW charging, so can cover most of your points. Other tariffs are available but I'm convinced by this one and by Octopus in general, FWIW.

You need a smartmeter to get any of the "good" tariffs as far as I'm aware, so that's probably simply got to happen.

As far as charging speeds goes a lot depends on how many daily miles you're going to put on the car. Although you "could" get 22kW via 3-phase unless you're going to absolutely piling miles on the EV6 then it's probably an unnecessary cost. You get a minimum of 6 hours on Intelligent Octopus which at 7kWh is probably 80% charge. So unless there's no cost difference to get a 22kW charger it's probably firmly in the "luxury" camp.

Upgrading to 7kW is probably firmly a "necessity" tho. Kia, at present, isn't playing nice with Intelligent Octopus so you would have to consider an Ohme charger as they are the only chargers presently compatible. Zappi are "coming soon" but have been for longer than "soon" really covers. Added benefit is that you can charge any car on Intelligent rather than relying on car compatibility.

The more miles you the less the daytime rate matters, as you'll be putting far more into the car than your wife could use working from home - unless she's running a laundry service maybe smile Again for Intelligent Octopus the day rate is about 30.5p/kWh, and the night rate is 7.5p/kWh, and as an example we charge two cars with a combined annual mileage of about 22k and about 2/3 of our daily consumption is done on the overnight rate. If you're only doing, say, 5k miles, then your % shift will be far less.


rugbyleague

278 posts

81 months

Sunday 10th September 2023
quotequote all
Consider Eon Next Drive

7hrs EV charging at low rate. 7*7.2KWh at 9.5p = 50KWh every night for £4.75.

Maybe get a home battery to cover day time use? Charge up over night avoid the grid during the day.

I have solar, 2 Ev's and a battery and this tariff works really well for me.

I moved away from Octopus for it.

Edited by rugbyleague on Sunday 10th September 12:42

theboss

7,074 posts

224 months

Sunday 10th September 2023
quotequote all
Otispunkmeyer said:
theboss said:
3 phase is a no brainer if you already have a 3ph supply or are in the process of getting one

Besides the obvious fact that you can charge a large battery car at 22kw inside a 4-6hr cheap window, you have the added flexibility of eg being able to install two chargers and charge two cars simultaneously, should you decide that EVs are so good that you need another one.
Yeah, so last time an electrician was round he remarked "oh you've got three-phase coming in here". He wasn't expecting that. Now, for the house only 1 phase has been tapped off.

How much hassle is it to tap off the other two and go to a charger? presumably I'd also need a new meter or even a separate meter as the rest of the house obviously wouldn't need 3-phase.
I would raise with your DNO and ask them what sort of connection you have. If there's a 3-phase cutout and service cable and only one phase is currently used, it wouldn't take much to get a new 3-phase meter, presumably put a small distribution board in place to feed your car charger and then connect your existing consumer unit tails to one of the phases. That's kind of what I'm currently doing although I will re-wire the house at some point to use all 3.

There are some other multi-phase or split phase variants though as I understand it, which still utilise what looks like the 3-phase cutout. That's why you need to speak to the DNO in the first instance to find out what's actually there.

It's when they have to open up the ground and replace your service cable that it gets more involving....

M4cruiser

3,987 posts

155 months

Sunday 10th September 2023
quotequote all
Reading this thread because we are thinking of getting a basic EV.

But
what a faff, I thought it was difficult enough choosing between 95, 97 or 99 octane in our current car. Now I'll need to spend hours with rates/discounts/phases across different supply companies, and decide if I want to switch my gas supplier too!

Maybe we'll just stick with a petrol car ...

Knock_knock

585 posts

181 months

Sunday 10th September 2023
quotequote all
M4cruiser said:
Reading this thread because we are thinking of getting a basic EV.

But
what a faff, I thought it was difficult enough choosing between 95, 97 or 99 octane in our current car. Now I'll need to spend hours with rates/discounts/phases across different supply companies, and decide if I want to switch my gas supplier too!

Maybe we'll just stick with a petrol car ...
It's actually incredibly simple for 99% of people: get a charger and chose a tariff with a cheap overnight rate. Everything else is just maximising benefit or convenience, or both.

jamesbilluk

3,910 posts

188 months

Sunday 10th September 2023
quotequote all
blank said:
Have you noticed the refunds are calculated against the day rate (32p for me) even if it charges at night (20p rate for me)? This means they actually pay me 2p/kWh to charge the car. I'm sure that's not how it's supposed to be though!
Ah, I’ve not seen that, I shall have a look!

rugbyleague

278 posts

81 months

Sunday 10th September 2023
quotequote all
M4cruiser said:
Reading this thread because we are thinking of getting a basic EV.

But
what a faff, I thought it was difficult enough choosing between 95, 97 or 99 octane in our current car. Now I'll need to spend hours with rates/discounts/phases across different supply companies, and decide if I want to switch my gas supplier too!

Maybe we'll just stick with a petrol car ...
Carry on paying £80 to fill your car or £5 to charge it.......Not really a faff!

I will put my tin hat on......

James6112

5,139 posts

33 months

Sunday 10th September 2023
quotequote all
To avoid hassle.. I signed up for EDF EV tariff, as we’re a customer already & the smart meter is up & running. No EV proof asked for
32p/8p 0100-0600
Using it to charge wife’s PHEV & all of the timed appliances 0100-0600
I’ll get a full EV soon
Relying upon the cars app to schedule, working fine. Granny charger at the moment.
40 odd mile range, not used any petrol in a few weeks!

FBR2020

1,275 posts

215 months

Sunday 10th September 2023
quotequote all
Interested to read this thread. In a similar position in that our current fix ends next month.

A 2 year fix, so we've been on 23p elec & 4p gas!

I have done some homework recently, findings below. Ive overestimated home usage, and haven't accounted for shifting any home usage into the cheap time, OH is paranoid about running appliances at night.



Edited to add: ignored the 7p Octopus intelligent rate because it's not compatible with the Leaf.

Otispunkmeyer

Original Poster:

12,873 posts

160 months

Sunday 10th September 2023
quotequote all
FBR2020 said:
Interested to read this thread. In a similar position in that our current fix ends next month.

A 2 year fix, so we've been on 23p elec & 4p gas!

I have done some homework recently, findings below. Ive overestimated home usage, and haven't accounted for shifting any home usage into the cheap time, OH is paranoid about running appliances at night.



Edited to add: ignored the 7p Octopus intelligent rate because it's not compatible with the Leaf.
Does it have to be compatible with the car? is it not just a middle of the night rate and you just set on the car when to start charging and when to stop? (I am sure the leaf has the ability to do this from within the car does it not?)

FBR2020

1,275 posts

215 months

Sunday 10th September 2023
quotequote all
Otispunkmeyer said:
Does it have to be compatible with the car? is it not just a middle of the night rate and you just set on the car when to start charging and when to stop? (I am sure the leaf has the ability to do this from within the car does it not?)
Octopus Intelligent is slightly different in that it can smart charge, switching on when demand is low, not just specifically at night.

I followed the compatibility checker here, choosing Leaf and Zappi. Computer says no.

https://octopus.energy/intelligent-octopus/eligibi...

To answer your other question, yes the Leaf has charge timers.

Edited by FBR2020 on Sunday 10th September 17:39

MrTrilby

990 posts

287 months

Sunday 10th September 2023
quotequote all
FBR2020 said:
Interested to read this thread. In a similar position in that our current fix ends next month.

A 2 year fix, so we've been on 23p elec & 4p gas!

I have done some homework recently, findings below. Ive overestimated home usage, and haven't accounted for shifting any home usage into the cheap time, OH is paranoid about running appliances at night.



Edited to add: ignored the 7p Octopus intelligent rate because it's not compatible with the Leaf.
Don’t discount Octopus Agile (rate changes every 30 mins based on supply/demand): it’s been a relatively expensive month for Agile (not much wind power) yet we’ve averaged around 21p/kWH. And surprisingly it would have been slightly cheaper to be on Octopus Tracker (rate is fixed for the day but changes every day depending on how cheap generation costs are that day).

The “proper” EV tariffs make most sense if you are doing decent miles and charging a lot, but if you charge less frequently, Agile or Tracker can work out better.

That said, Intelligent Octopus would be cheaper still, but we don’t have a compatible car or charger either.