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Rashers

Member Since: 21 Jun 2015
Location: Norfolk
Posts: 3341

2014 Defender 110 Puma 2.2 USW Corris Grey

Co1 wrote:
The other bit that is missing is the domestic infrastructure. Most UK domestic supplies are rated to 100A or thereabouts. There is also diversification on top of that: ie the assumption isn’t that each house is pulling 100A all the time and the grid is sized accordingly. If we all had EVs and 150KW chargers, the grid couldn’t actually supply enough electricity. The fact that the roads aren’t being dug up to install new supplies means that those in the know, know that this is only a very short term answer.

Spot on CO1

And what happened last Friday evening will only be the start of it.

https://www.bbc.co.uk/news/uk-49302996

Just two fairly small generators tip over (if we are being told the truth?) and large proportions of the country lose power.

Whatever the smart suits say, we do not have the infrastructure for this amount of electrical use and in reality, we are not going to have the infrastructure anytime soon. Remember that the way forward for domestic heating is going to be electric as well as having to additionally charge your vehicles.

I haven't got an answer for what is needed. We sure can't keep burning fossil fuels, but we can't keep mining the raw materials for infinite numbers of batteries and the billions of kilometres of copper cable which will be needed either.

10th Aug 2019 8:15pm

Zed

Member Since: 07 Oct 2017
Location: In the woods
Posts: 3018

2010 Defender 110 Puma 2.4 XS CSW Santorini Black

The Fully Charged Show is given exclusive access to get Jonny Smith behind the wheel of the new first Porsche all electric car - the Taycan - and drive it full throttle from 0-124 mph (200 km/h) dozens of times. The Taycan is a twin motor 600+hp, 96kWh, 800-volt 4-door 4-seater coupe with a supposed range of 320 miles (≈ 515 km) . It can reach 0-62 mph (0 -100 km/h) in just over 3 seconds repeatedly, and can rapid charge at over 250kW. With a charging time ≈ 0 - 80% in about 40 minutes.
Prices for this 'Turbo' launch model will be around £130,000 ( ≈ €141k or USD $158k) with cheaper/slower versions kicking off around £65,000 within 18 months of the car's launch in late 2019.
The Taycan is potentially as much of a milestone for Porsche as the aircooled flat six 911 was, taking aspects of the new 992, 911 and Panamera, but is ground-up all new. Jonny was allowed to take the genuine first drive of the car alone for some 30 full throttle launches, but the final spec and aesthetic details of the Taycan still remain under embargo. The full story is on Jonny's blog entry on our website: https://fullycharged.show/blog/porsche-tay...exclusive/

10th Aug 2019 8:45pm

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

large proportions of the country lose power. to try stop cascade power loss by removing load from renaming generators station But it fails when gas-fired power station at Little Barford, Bedfordshire, failed Trip G95 protection for Horn sea offshore wind farm disconnecting from the grid and for allot small local generators disconnecting them from the grid and increasing load on the system

740 MWe gas-fired power station

This third time this has happened each time with a grater impact

Look at how much base power generators station have been shut down and been replaced with STOR only generators

10th Aug 2019 8:53pm

mrd1990

Member Since: 16 Aug 2012
Location: Wales
Posts: 600

Electric cars are not the problem, they are the answer to the grid issues. Regulation requiring electric cars to stop charging when the grid frequency stops below 49Hz is all that is needed.

I can't see any reason why an electric car can not be programmed to put electric back into the grid during power station failure to prevent blackouts except for course a complete lack vision by the Government.

11th Aug 2019 11:06am

Zed

Member Since: 07 Oct 2017
Location: In the woods
Posts: 3018

They have already started doing that in France. If successful it will no doubt catch on here, despite the government's inertia.

Right now EV's are being bought by the eco minded and wealthy which causes resentment from some quarters. As the price of EV vehicles becomes more affordable I suspect most will stop worrying about the national grid or how metals are mined, batteries recycled etc.

11th Aug 2019 11:36am

Rashers

Member Since: 21 Jun 2015
Location: Norfolk
Posts: 3341

As Zed says, Renault (I believe) have started a scheme on an Island somewhere where the excess charge left in vehicles is used to back feed their electrical grid at times of high demand and at night when the sun isn't shining. This should prevent the islands requiring their diesel generators to be run saving the islanders money.

In essence, whether you realise this or not, this ides has been used for years. Large users of energy had been asked to run their generators at times of high demand to offset the demand on the grid. This was happening 20 years ago. Not sure if it still is, but this is definitely not environmentally friendly.

I find it quite amusing that at times of high demand, you eat breakfast, walk out to the car to go to work only to find your battery is at zero due to demands on the grid. It's like someone syphoning your fuel, then leaving the value of the fuel in a honesty box! Sorry boss, can't come in, electric supplier drained my battery last night

11th Aug 2019 4:19pm

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