Petrol and diesel car sales ban brought forward to 2035

[EddieM]

It's quite a logistical challenge, it might take ~20 mins to charge an EV on a fast charge, but it only takes about ~5 mins for a fill up, so to get similar throughput you need a lot more charging points, otherwise it's gonna be a long wait before a charger becomes available.

 

[IT Minion]

It's quite a logistical challenge, it might take ~20 mins to charge an EV on a fast charge, but it only takes about ~5 mins for a fill up, so to get similar throughput you need a lot more charging points, otherwise it's gonna be a long wait before a charger becomes available.

True, there's been examples of that happening in the US on holiday weekends where the number of chargers isn't enough.

But don't forget that fast charging is an exception for most people. If you have a driveway then you may only need a fast charger a couple of times a year to visit family in another part of the country.

To support that motorway services are going to need a bit of a revamp.

 

[Notch7]

It's quite a logistical challenge, it might take ~20 mins to charge an EV on a fast charge, but it only takes about ~5 mins for a fill up, so to get similar throughput you need a lot more charging points, otherwise it's gonna be a long wait before a charger becomes available.

Those chargers need 50 to 150 kw supply.

 

[EddieM]

Those chargers need 50 to 150 kw supply.

Need to be bigger then that for proper fast charging, which brings peak supply problems. Much more efficient to generate power at source of use.

 

[sxturbo]

Need to be bigger then that for proper fast charging, which brings peak supply problems. Much more efficient to generate power at source of use.

Have a diesel generator powering each charging site......

 

[JohnD]

Have a diesel generator powering each charging site......

fuelled with clean-burn hydrogen, perhaps

 

[IT Minion]

Need to be bigger then that for proper fast charging, which brings peak supply problems. Much more efficient to generate power at source of use.

The pace you can shove power into batteries drops as they get fuller.

What some places seem to be planning is installing some large static batteries plugged in to help average out the power draw from the grid whilst allowing fast car charging. So instead of giant 250-350kW spikes they draw a much more sane 100kW from the grid, when the slots are empty they charge the battery, when the cars charging fast then it draws from the grid and the battery and when it's slow it charges the car and the battery.

There is talk about building in PV into charging stations, which makes sense if you can do it. They already have the grid connections.

 

[motorbiking]

My PV system which is quite old would give me 3-600 miles a month. It’s a good start to covering half of my mileage.

 

[Notch7]

The pace you can shove power into batteries drops as they get fuller.

What some places seem to be planning is installing some large static batteries plugged in to help average out the power draw from the grid whilst allowing fast car charging. So instead of giant 250-350kW spikes they draw a much more sane 100kW from the grid, when the slots are empty they charge the battery, when the cars charging fast then it draws from the grid and the battery and when it's slow it charges the car and the battery.

There is talk about building in PV into charging stations, which makes sense if you can do it. They already have the grid connections.

Wow thats a serious amount of electric needed.

There is zero chance of having the infrastructure in place.....esp given the small political matter that will rumble on for years.

 

[IT Minion]

Wow thats a serious amount of electric needed.

There is zero chance of having the infrastructure in place.....esp given the small political matter that will rumble on for years.

It's not as if they're being dumped in huge numbers yet. It'll build up slowly.

In terms of energy it's best to look at the total amount that's needed. EVs do something like 3 miles per kWh. The average weekly milage is around 150, which means roughly 50kWh.

 

[EddieM]

It's not as if they're being dumped in huge numbers yet. It'll build up slowly.

In terms of energy it's best to look at the total amount that's needed. EVs do something like 3 miles per kWh. The average weekly milage is around 150, which means roughly 50kWh.

What a crap solution.

 

[IT Minion]

What a crap solution.

What a deep, meaningful and insightful response.

 

[Munroast]

there is going to be a lot of electric needed.
UK gov figures show that cars account for around 254 billion miles annually
if we guess at an average mpg of 40 ?
then that would be 80 million litres of fuel per day
10kwh in a litre but much of that is lost with engine inefficiencies, so let use 35% to make a fair comparison with an electric vehicle?

so that works out at around 277million kwh of leccy per day

that is an average of 11,500 mega watts of generation
we currently have about 40,000mW of capacity - we're going to need a fair few more power stations.

And that ignores the fact that we are going to try and move away from gas central heating, with many replacement systems using electric - we're going to need a hell of a lot of new power stations

Can the grid take a doubling in capacity ? will we all need fatter cables coming into our homes?

 

[EddieM]

What a deep, meaningful and insightful response.

Crap solutions don't need insightful comment, they are self evidently crap.

 

[IT Minion]

Can the grid take a doubling in capacity ? will we all need fatter cables coming into our homes?

The national grid says it's not a big deal. The links further up the thread.