The Tesla Thread

Im looking at elec suppliers for my model3 due this month. It seems many ‘ev tarrifs’ have only about 4 hours off peak say 2am to 6am. But afaict tesla could take 7hrs or more to charge so this will be well out with the ‘offpeak’ duration. Am i missing something here is this normal?


Right now i have 17p/kwh. (20p standing charge) But i could change to ev tarrif 5.68p 2-4am and peak tariff goes to 19p.

is this in line with what m3 owners are paying?
 
You are missing something. Generally speaking you don’t need to charge the car from completely empty to completely full every day and you’ll probably only charge to 80% for normal daily use.

Plug the car in daily and you’ll get more than enough charge in that 4 hour window for well above the normal average daily mileage.

It’s only really an issue if you are doing two 200+ mile days in a row in which case you’ll just have to pay more for some of that power.
 
2 years in and never bothered with "EV" tariffs etc.

As above - unless you charging every night and driving 150/200 miles a day, you don't need to charge the car most days. I probably charge once a week at home, once a week at the golf course (free public charger). That's enough for around 300/400 miles a week.
 
There's only one thing I regret about getting my M3 and that's getting a charger installed at home. I don't have a driveway so using it takes a bit more thought, but honestly what with being able to charge at work, plenty of final destinations, and on the Supercharger network, I would barely need to charge at home anyway and I'd rather have put the install cost towards using public chargers.
 
I speak with little experience but I cannot imagine how you could ever wish to use public chargers over a home one.

One of the main attractions to me, almost the biggest bonus of an EV, is that it just charges every night like a mobile phone and never needs a garage visit or any further thought. My brother in law recently bought an iPace (amazing car irl, absolutely love it), and he does just that, it’s fantastic to never think about it (so he tells me and I totally relate) as it just sits there at full charge all of the time. I’m extremely jealous of it, I just wish that I could get over the cost of a decent EV, so hard to justify even if they are amazing.
 
I havent got a garage.

I keep saying this now as I basically forgot. I haven’t had to stop once in last 9 months during commuting and the more typical journey to refuel.

It’s great knowing your commutes are pretty much the same duration generally, without those ones where you have to stop on route, way home or even the night before a special trip out to refuel. And then standing there wasting some of your day on a forecourt!

good to hear you liked the IPACE Jez.
 
Jonnycoupe said:
good to hear you liked the IPACE Jez.
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Amazing thing. Absolutely loved it. So much better than any picture can make the thing look. So fast too.

As “nice” as my Cayenne absolutely not, and he commented that the dash/software can be a bit glitchy, but yeah, absolutely lovely thing. So smooth and so fast, makes diesel traction mated to a really smooth 8speed box like mine feel like ancient technology.
 
Jonnycoupe said:
It’s great knowing your commutes are pretty much the same duration generally, without those ones where you have to stop on route, way home or even the night before a special trip out to refuel. And then standing there wasting some of your day on a forecourt!.
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Quite, this is the #1 benefit over diesel IMO. Just yesterday I worked for over 12 hours, got into the car tired to go home, to be greeted by the low fuel warning that I’d ignored that morning because I was in a rush. First world problems obviously, but the idea of having it sat there charged every morning like an iPhone is just great.
 
whitecrook said:
Im looking at elec suppliers for my model3 due this month. It seems many ‘ev tarrifs’ have only about 4 hours off peak say 2am to 6am. But afaict tesla could take 7hrs or more to charge so this will be well out with the ‘offpeak’ duration. Am i missing something here is this normal?


Right now i have 17p/kwh. (20p standing charge) But i could change to ev tarrif 5.68p 2-4am and peak tariff goes to 19p.

is this in line with what m3 owners are paying?
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You don't ned to be worried about the 4 hour period with that kind of mileage.

4 X 7kwh = 28kwh to the car.

The car will achieve at worst 3 miles per kwh after charging and preheating losses, in reality the new Model 3 will be getting over 4 when driven sensibly. Lets take the worst case scenario of 3 miles per kwh, 70/3 = 23.3 kwh which is well under the 28kwh you can get into the car in that period of time.

To work out if an EV tariff is 'worth it' you probably want to take the best case scenario of 4 miles per kwh and work out if the extra cost during the day is worth it for the reduced rate at night.

I use about 11kwh per day averaged across the year (4015 kwh a year) and best case scenario you'll be getting 4 miles per kwh in the car and over 18k that equates to 4500kwh.

Regular tariff: 4015kwh + 4500kwh X 17p/kwh = £1,447.55

EV tariff: 4015kwh @ 19p + 4500kwh @ 5.56p = £1,012 (£762 + £250)

I'd say the above is weighted against the EV because you can shift other usage to that period (like the dishwasher and washing machine or tumble dryer etc.) and the more mileage ( or the worse efficiency you get) you do the better the outcome for the EV tariff.
 
b0rn2sk8 said:
Regular tariff: 4015kwh + 4500kwh X 17p/kwh = £1,447.55

EV tariff: 4015kwh @ 19p + 4500kwh @ 5.56p = £1,012 (£762 + £250)
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many thanks for that useful information. Plugging in details At 17 vs 19/5.68 its seems The ev tariff is cheaper up to about 25,000 kwh /year. But there’s not a huge amount in it really. I will continue to look into this thanks
 
Decided to change my choice of charger from Andersen A2 to the Easee Charging Robot.

Pros
  • Easee can be daisy chained to allow more than 1 charger (up to 100!) on one supply.
  • There's a queuing system so if I installed 2 chargers and my car is the 1st to plug in I get priority.
  • Once #1 car is done charging all power goes to #2 car etc (I'm thinking of putting a series of these in at work)
  • Charger can be locked / unlocked with a RFID chip, to stop people using it or removing cables
  • It's much smaller than the Andersen and will scale the power demand according to the available power at home*
  • Nearly half the cost of Andersen A2

* If you're cooking, boiling the kettle and have 3 TVs running then the charger won't trip the house by trying to draw all 100A etc

Car is being collected on 25th, so just need to get the sparky round to wire it all up :cool:
 
EVH said:
Decided to change my choice of charger from Andersen A2 to the Easee Charging Robot.

Pros
  • Easee can be daisy chained to allow more than 1 charger (up to 100!) on one supply.
  • There's a queuing system so if I installed 2 chargers and my car is the 1st to plug in I get priority.
  • Once #1 car is done charging all power goes to #2 car etc (I'm thinking of putting a series of these in at work)
  • Charger can be locked / unlocked with a RFID chip, to stop people using it or removing cables
  • It's much smaller than the Andersen and will scale the power demand according to the available power at home*
  • Nearly half the cost of Andersen A2

* If you're cooking, boiling the kettle and have 3 TVs running then the charger won't trip the house by trying to draw all 100A etc

Car is being collected on 25th, so just need to get the sparky round to wire it all up :cool:
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what was the price, if you dont mind asking, I'm getting a zappi installed next week, car arrives on 24th
 
whitecrook said:
what was the price, if you dont mind asking, I'm getting a zappi installed next week, car arrives on 24th
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£610 for charger, £238 for install with local chap. This is without the OLEV grant.

The Zappi (from my understanding) has been having supply chain issues and RCDs burning out. Have a look at Artisan Electrics on YouTube... he's a full time EV installer and has a few videos complaining about the recent quality of the units and going around fixing faults.
 
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