Green Deal solar

[Clive]

But how big a supply to garage? Rapid chargers are quite power hungry.
I'm quite lucky that the main electric incomer is reasonable close to house so a substantial charger will be possible when the time comes

i’ve got 100kv 64amp supply at home - the car determines charge speed which is max 11 watts on a AC supply meaning it will fully charge circa 285 miles overnight

to go faster charger you need a DC charger like the ionity service stations which 80% charge in 22 mins

 

[Exfarmer]

i’ve got 100kv 64amp supply at home - the car determines charge speed which is max 11 watts on a AC supply meaning it will fully charge circa 285 miles overnight

to go faster charger you need a DC charger like the ionity service stations which 80% charge in 22 mins

I am struggling here Clive, all battery chargers are DC. any charging station will use an inverter to convert grid AC power to DC regulated to the cars voltage. If every home in the land installed a fast charger, the network would go down very quickly

 

[Still Farming]

I am struggling here Clive, all battery chargers are DC. any charging station will use an inverter to convert grid AC power to DC regulated to the cars voltage. If every home in the land installed a fast charger, the network would go down very quickly

What do they buy and sell electric at these stations?
I see some farm shops putting charging points in now also?

 

[Doing it for the kids]

I am struggling here Clive, all battery chargers are DC. any charging station will use an inverter to convert grid AC power to DC regulated to the cars voltage. If every home in the land installed a fast charger, the network would go down very quickly

and this is what National Grid are having nightmares about currently.

EV’s have the power to transform the way we use power but also give huge problems. As we steer away from dependable fossil fuels the supply at night is reliant on wind and batteries.

infrastructure is struggling - service stations suddenly need bigger connections with potential huge spikes in demand.

going to be interesting to see how things pan out

 

[Exfarmer]

and this is what National Grid are having nightmares about currently.

EV’s have the power to transform the way we use power but also give huge problems. As we steer away from dependable fossil fuels the supply at night is reliant on wind and batteries.

infrastructure is struggling - service stations suddenly need bigger connections with potential huge spikes in demand.

going to be interesting to see how things pan out

I honestly believe that for the short medium term, if there is a sudden large move towards EVs , we are going to have set up large generators at sites such as service stations, to cope with demand.
be ironic if we shift the diesel used in vehicles into these generators

 

[Doing it for the kids]

I honestly believe that for the short medium term, if there is a sudden large move towards EVs , we are going to have set up large generators at sites such as service stations, to cope with demand.
be ironic if we shift the diesel used in vehicles into these generators

been having this argument over a project now for nearly 2 Years. As always left and right hand don’t talk at national level.

our local council has Signed up to carbon neutral etc etc but utterly clueless what that actually means and how they will do it. Consultants speak to those in charge and they refer to Energy saving light bulbs!

no wind here, mostly green belt so their options are very limited yet they still give grief and stack the odds against you by insisting on and commisiong their own reports from ‘experts’ who do little more than spurt waffle!

we are heading into an energy disaster, those pushing for EV and the greens still haven’t worked out how the grid works!

 

[Still Farming]

Their decommissioning Aberthaw coal power station in line with all "green" ideas by here.
But when "The beast from the east" etc.etc they soon stoked that up as demands rose.
When gone they won't be able to do that anymore?

 

[Scrambler]

We have 25 kWh 3 phase solar and a BMW i3. We've had the i3 for 6 years and average over 12000 miles/year. We charge it with a dedicated 7.5 kWh charger or off a 3 pin socket at 3 kWh. We charge it using the solar as much as possible. Easy in the summer, almost impossible in the winter.
As fun as the Porsche will be, I doubt you'll be regularly charging from near flat, and being a farmer, you'll probably have plenty of opportunity to charge in the daytime using your solar energy.
Here's a fact that not everyone is aware of. If our solar is pumping out 9 kWh (3 per phase) and the car is charging at 7.5 kWh off 1 phase and therefore pulling 4.5 kWh from the grid, our smart metre knows we are exporting more than we are importing and the metre doesn't tick round. (I don't think modern metres "tick" but you get the meaning.)
Battery storage is looking interesting now. Afaik, if you have 2 Tesla Powerwalls they can be set up to work with 3 phase and also keep you "live" in the event of a grid power cut. Something that wasn't allowed a short time ago.

 

[chickens and wheat]

I wonder if an onfarm fast charger could be hired out to local drivers ?
I could sell the owner a very milky coffee for £7.99 to make it a realistic service station experience

Our branch of the power line is pretty much maxed out, so would have the only fast charger around

 

[Doing it for the kids]

I wonder if an onfarm fast charger could be hired out to local drivers ?
I could sell the owner a very milky coffee for £7.99 to make it a realistic service station experience

Our branch of the power line is pretty much maxed out, so would have the only fast charger around

maxed out grid is the issue and big chargers seem to pull a lot.

your suggestion reminds me of when LPG first came out for cars. There were all sorts of filling stations down back roads!

chargers are really needed at places of work for most examples

 

[sjt01]

I honestly believe that for the short medium term, if there is a sudden large move towards EVs , we are going to have set up large generators at sites such as service stations, to cope with demand.
be ironic if we shift the diesel used in vehicles into these generators

Tesla are installing battery backup packs at their superchargers, so they can trickle charge them then quickly dump the power to cars when they arrive. One commercial advantage is the reduction in maximum demand tariff, and the size of the feeder cable and transformer.

 

[br jones]

Tesla are installing battery backup packs at their superchargers, so they can trickle charge them then quickly dump the power to cars when they arrive. One commercial advantage is the reduction in maximum demand tariff, and the size of the feeder cable and transformer.

How are they charging the battery back up ? From the mains ?

 

[Exfarmer]

Tesla are installing battery backup packs at their superchargers, so they can trickle charge them then quickly dump the power to cars when they arrive. One commercial advantage is the reduction in maximum demand tariff, and the size of the feeder cable and transformer.

That is OK for a limited number, but you will need one hell of a power wall at a service station with hundreds cars per hour.
i personally would be very unhappy living close to such a battery pack. If they catch fire the fall out can be worse than a nuclear powerstation

 

[Still Farming]

That is OK for a limited number, but you will need one hell of a power wall at a service station with hundreds cars per hour.
i personally would be very unhappy living close to such a battery pack. If they catch fire the fall out can be worse than a nuclear powerstation

Nice and Green ant it???

 

[Doing it for the kids]

Tesla are installing battery backup packs at their superchargers, so they can trickle charge them then quickly dump the power to cars when they arrive. One commercial advantage is the reduction in maximum demand tariff, and the size of the feeder cable and transformer.

from what I hear batteries just aren’t there yet?

if we get a dull, wind free few days in the winter when it’s -5 in the morning the National Grid Poo their pants.

having a whole load of EV’s calling for power at the same time is going to make for an interesting time!

 

[chickens and wheat]

A battery backup charge station isn't the answer as you cannot simply and quickly dump power from one battery to another.
Also my plan to install a 40kw charger on farm may not be grid approved despite having 100kw solar and 250kv transformer.

 

[sjt01]

How are they charging the battery back up ? From the mains ?

Yes, from mains

 

[sjt01]

A battery backup charge station isn't the answer as you cannot simply and quickly dump power from one battery to another.
Also my plan to install a 40kw charger on farm may not be grid approved despite having 100kw solar and 250kv transformer.

Well, Tesla seem to think you can and they know rather more about battery technology than I do.
I follow Euan McTurk on YouTube - this is one of a series of 3 excellent videos about grid loading:

 

[Exfarmer]

Well, Tesla seem to think you can and they know rather more about battery technology than I do.
I follow Euan McTurk on YouTube - this is one of a series of 3 excellent videos about grid loading:

Tesla are hardly an independent commentator being one of the worlds largest producer of batteries!
Tesla batteries are old technology and there may well be major steps forward in the future. However at the moment, I do not see any way that they can have a major impact on the grid, without huge numbers of them being installed.
if one such installation catches fire, there will be a huge political row to follow when the fall out poisons people.

 

[chickens and wheat]

Interesting video
But he fails to comment on infrastructure to distribute this electricity, he simply says the the UK can produce enough power.
Also he is assuming all fuel produced in refineries is used in cars,. That must be vastly incorrect or is he assuming hgv will be electric too.
I think electic cars will happen but it won't be as simple as he suggests