Electrical Units For a Full Charge.

[Broadway One]

Hi all.....apologies for repetition but need to seek out the excellent postings on this.

How does the Rav PHEV compare with the average EV ?

Thanks for guidance in advance.

Barry Wright Lancashire.   

[ernieb]

Barry not sure I fully understand the question, in what respect do want a comparison?

[philip42h]

If the question relates to Battery capacity, then the PHEV Battery holds 18.1 kWh which gives it a range of around 50 miles

There's no such thing as an 'average' EV, but a North Korean BEV or the new bz4x batteries hold over 70 kWh giving ranges of around 200 - 300 miles. The Battery is around four times the size of that in the PHEV; the range is commensurately longer ...

If that wasn't the question ... 😉

[ernieb]

Barry, one thing to consider is how you are going to use the car. If your local trips are less than 45/50 per day and they are good percentage of your annual mileage then the Toyota PHEV works really well as it is easily recharged over night. If the balance is longer distances then the ICE will kick in regularly and some of the PHEV EV benefit begins to be lost.

example, I do a number of regular trips over the 45/50 mile range but so far since I’ve had the car it has run on EV for 85% of the time and 75% of the distance, obviously some of the EV is me charging the car and the rest the EV recovered in the same way a HEV would.

Hope that helps?

[nlee]

If the question is about the title, the full Battery capacity is 18.1 kWh as @philip42h says but around 30% is retained for use as a normal hybrid. I've just charged from "empty" and it used 11.88 kWh to charge to full.

[ernieb]

Nigel is correct around the 12kw mark depending on just how near you re to the 30% Traction Battery remaining level. But that will give you importantly the estimated 45/50 miles range.

[Broadway One]

Hi.....interesting replies thanks, seems a full charge for the RAV is circa 12kwh's.

A similar ballpark for a BEV also is of interest.

Presentation to residents next week on the car park charging project.

Trying to anticipate likely questions.

Barry Wright Lancashire. 

PS Just uncovered a government recommendation that all residential apartment blocks with more than 20 car park spaces must have individual charging points by 2025....interesting. 

 

  

[philip42h]

Context always helps ... The RAV4 really isn't an EV - and the relatively limited capacity of the PHEV can easily be satisfied with an overnight charge via a 10A supply (as PHEV owners will attest). If you are looking to provide capability that will suit future BEV owners you probably should be looking at 32A / 7.4kW charge points - ideally one per bay (but that gets to quite a lot of amps).

With a 7.4kW charger you be able to supply 74 - 89 kWh through an overnight charge - which is, not surprisingly, just about the Battery size provided in current, full-time, BEVs and what is required to give a realistic range of over 200 miles on a single charge.

[Broadway One]

Hi.....Thanks, now that's interesting & explains the heavy duty cable supplied with the RAV.

My proposed scheme includes 25, 7.4kW fast charging points (1 point between 2 adjoining bays)

It's more about convenience rather than energy costs; retirees = local miles.

Even so, I'm sure there is potential for a healthy income stream from the new smart infrastructure supporting 25 charging points. 

Hoping to use EV public network rates for kWh's supplied (100% markup)

However the on cost per unit is totally in the hands of residents on the scheme.

Convenience & kWh's at cost or convenience & surplus funds for other projects ?   

Several cars claiming a charge on a regular basis soon mounts up & could, minus admin. costs provide a welcome boost to a fledgling house account ultimately feeding through to the benefit of residents. 

Footnote with apologises for straying off topic:

Early days, charging the RAV still a novelty using the single on site outdoor Roco 7.4kw fast charge.

Situated at the rear of a small visitors car park, not always accessible.

Reverse into the bay leaving clearance to open the tailgate.

Lift the floor in the boot, retrieve & unravel the cable, Phew!!

Plug in both ends & claim a charge via iPhone (3hrs @ £2/hr) 

Close tailgate, lock up & retreat to 405 on the 4th floor.

Check progress via iPhone, when done, revisit, unlock car & open tailgate.

Unplug both ends of cable & coil up tightly otherwise it won't fit in the under floor storage well, Phew!!

Close tailgate & move into car park 405 bay.

Not difficult to appreciate the advantages of a wall charge unit with a tethered cable adjacent to my bay.

Park up, plug in one end only, no messing about in the boot, job done, as I say convenient.     

Barry Wright Lancashire.   

 

  

[IanML]

If the collective of residents wants to pay for their kWh at cost, you might remind them that, once the warranty on the chargers is expired, money will have to found for repairs/replacements as required.

[ernieb]

8 hours ago, IanML said:

If the collective of residents wants to pay for their kWh at cost, you might remind them that, once the warranty on the chargers is expired, money will have to found for repairs/replacements as required.

Good point and based on the number you see in public spaces with 'not in service' signs regular maintenance checks.

[Broadway One]

22 hours ago, Broadway One said:

PS Just uncovered a government recommendation that all residential apartment blocks with more than 20 car park spaces must have individual charging points by 2025....interesting. 

Hi all.....to round off an interesting debate.

Seems the policy makers are finally recognising the practicalities.

Apartment blocks with private off road parking serve to remove 1000's of vehicles from our roads.

Moving on to a world of BEV's. 

What's the point if they need to seek charging on the public network ?

Just a thought......Barry Wright Lancashire.

     

[nlee]

Have you looked at the changes to the EVHS grant scheme Barry? I haven't read the detail but from 1st April the focus is changing from private homeowners to rented accommodation and apartments, etc. There are also additional grants available for ducting, etc. It might apply to your situation so could be worth investigating.

[nlee]

Had 7 miles of EV range left yesterday. Charge to full was 2 hours but due to the 'trickle' at the end, most of the charge was completed in 1h 30m. Cost for charge was 47p. 

[Bcc212]

47p! That’s a great tariff. 

[nlee]

1 hour ago, Bcc212 said:

47p! That’s a great tariff. 

It's an EV tariff I transferred to at 5p/kWh from 00:30 to 04:30.

[Broadway One]

6 hours ago, nlee said:

Have you looked at the changes to the EVHS grant scheme Barry? I haven't read the detail but from 1st April the focus is changing from private homeowners to rented accommodation and apartments, etc. There are also additional grants available for ducting, etc. It might apply to your situation so could be worth investigating.

Hi.....thanks Nigel for a great & timely prompt.

Just the sort of stuff that will help me get the project over the line.

Barry,

 

[Bcc212]

2 hours ago, nlee said:

It's an EV tariff I transferred to at 5p/kWh from 00:30 to 04:30.

Is this Octopus Go ? 

[nlee]

1 hour ago, Bcc212 said:

Is this Octopus Go ? 

That is the tariff I chose but other energy suppliers do similar. You have to weigh up the benefits for how an EV tariff will work for you as you have to be aware that the "day rate" is often a couple of pence more than the standard tariffs and could be much more than that if you are on a good fixed rate for now. If it helps, I created an excel calculator in the post below to estimate potential savings. 

I've also started to make use of the start delay on appliances like washer, tumble dryer and dishwasher to shift usage into the cheaper window. I've not yet convinced my wife that we should cook and eat dinner at 2am!