So; do we all feel dirty?

[aussiblue]

Unless it is charged solely from a solar source all you’re doing using an EV is changing where the pollution is coming from and in Australia that will be mostly from a very dirty coal burning power station. And then there all the social and environmental issues around the disposal and manufacture of the EV's batteries.

[Franco Cozzo]

Originally Posted by aussiblue

Unless it is charged solely from a solar source all you’re doing using an EV is changing where the pollution is coming from and in Australia that will be mostly from a very dirty coal burning power station. And then there all the social and environmental issues around the disposal and manufacture of the EV's batteries.

Its still cleaner from an emissions standpoint to charge an EV from a brown coal power plant than use diesel to move the wheels of a car.

[kypez]

Originally Posted by aussiblue

Unless it is charged solely from a solar source all you’re doing using an EV is changing where the pollution is coming from and in Australia that will be mostly from a very dirty coal burning power station. And then there all the social and environmental issues around the disposal and manufacture of the EV's batteries.

I've done the maths in other threads. Even off pure coal (which the grid isn't anymore), you will reduce by half the emissions charging from coal vs fuel

[.:4:.]

Originally Posted by kypez

My comment is that the technology is there for it to work.

100% the technology is there and its only going to get better, its just prices are still reflecting the r&d.

Tangent/sidenote. The teslta cybertruck.... how do you get stuff out the front of the back of that thing with its whacky triange design. Also what do you do if you want to put an ally tray on the back or a service body?

[Franco Cozzo]

At work the other day noticed that the installation I was working at near a housing estate, local voltage was at 252V, which is right on the upper spec of the standards (253V)

Must be from solar input from the housing estate, so there's a lot of excess energy being generated during the day that could go into people working from home EVs - there's a reason FIT is so low these days and its because energy during the day is basically worthless because there's shitloads of it and not overly much demand for it.

Originally Posted by .:4:.

100% the technology is there and its only going to get better, its just prices are still reflecting the r&d.

Tangent/sidenote. The teslta cybertruck.... how do you get stuff out the front of the back of that thing with its whacky triange design. Also what do you do if you want to put an ally tray on the back or a service body?

Its not a work vehicle, just like 70% of the Ford Rangers on the road in Melbourne

[.:4:.]

Originally Posted by Franco Cozzo

At work the other day noticed that the installation I was working at near a housing estate, local voltage was at 252V, which is right on the upper spec of the standards (253V)

Must be from solar input from the housing estate, so there's a lot of excess energy being generated during the day that could go into people working from home EVs - there's a reason FIT is so low these days and its because energy during the day is basically worthless because there's shitloads of it and not overly much demand for it.

Back in 2006 when i bought my 1st multimeter our house was 1st from the pole mount tranny, it was 252v. Nothing wrong there. As 3000 says 230 these days, but its still typically 240. The forward at the front of the as3000 says somewhere that its an adaption of uk and irish standards or something.

[Franco Cozzo]

Originally Posted by .:4:.

Back in 2006 when i bought my 1st multimeter our house was 1st from the pole mount tranny, it was 252v. Nothing wrong there. As 3000 says 230 these days, but its still typically 240. The forward at the front of the as3000 says somewhere that its an adaption of uk and irish standards or something.

Yep, nothing wrong there, but once it goes over this happens to your solar panels:



Which means during the peak solar window, your solar panels do absolutely nothing, because grid voltage is too high and the inverter cuts their output.

So I'd say having a bunch of people charging EVs in these areas which have peoples solar turning itself off all the time probably isn't going to strain the grid as supply is exceeding demand significantly on a suburb level.

[DJM83]

Simple answer, for me anyway.
No, not i dont.


But i also ride my bike to work

[fatgas]

Originally Posted by Franco Cozzo

Yep, nothing wrong there, but once it goes over this happens to your solar panels:

image

Which means during the peak solar window, your solar panels do absolutely nothing, because grid voltage is too high and the inverter cuts their output.

So I'd say having a bunch of people charging EVs in these areas which have peoples solar turning itself off all the time probably isn't going to strain the grid as supply is exceeding demand significantly on a suburb level.

So there's a comparator in the inverters that checks grid voltage?

[Franco Cozzo]

Originally Posted by fatgas

So there's a comparator in the inverters that checks grid voltage?

Yep, local grid voltage goes too high and then it cuts the output of the solar panels,

The modern inverters ramp down output to try prevent it, but when she goes too high, off goes your solar setup.

Causes issues in some regions too if there's too much solar input to the grid, they'll restrict the amount of solar you can have on your house for a grid feed setup.

Usually I see 230-240V, saw 252V the other day early in the morning, and saw it again today but regional VIC instead of Melbourne suburbia.

Yep its within the standards so its fine, but its right on the edge of the upper limit.

As household solar stresses the grid, WA and South Australia will have the power to turn it off

From today, Western Australia will join South Australia in having the authority to turn off household solar systems at times when the electricity network is deemed to be under severe stress.

The regulations follow the runaway demand for rooftop solar in WA, where more than a third of residential and business customers on the state's main grid have an installation.

https://www.abc.net.au/news/2022-02-...load/100820354

Solar curtailment is emerging as a new challenge to overcome as Australia dashes for rooftop solar

Last year saw Australians install rooftop solar like never before, with 40% more installed in 2021 than in 2020. Solar system installations now make up 7% of the energy going into the national electricity grid.

Alongside the greater uptake of utility-scale solar (such as solar farms), this means cheaper and cleaner electricity is fast becoming a reality, putting the country on track to meet international climate targets.

But such a dramatic surge in solar output also poses challenges for Australia’s power system for two main reasons.

It results in increased periods of large oversupply when weather conditions favour solar energy. This leads to energy being wasted due to the need for solar curtailment – when a solar system shuts down or stops exporting energy to the grid to counter the energy spike.

https://theconversation.com/4-ways-t...-prices-173592

Off go your solar panels and you start importing energy from the grid, during the peak solar window on older setups - oops.

It effects some areas way more than others, depends on demand from the local area and the amount of people with solar panels on their houses.

[fatgas]

That's all good and well now, but from your experience Mr Cozzo, would the grid as it is now be up to the task of supporting 15 million electric cars?

[Tassie f100]

Originally Posted by b0son

image

Looks like a rise to me...

It does look like a rise,but 15mm in 130 years hardly headline,life threatening news.How do they measure it anyway,when every tide is slightly different.

[Franco Cozzo]

Originally Posted by fatgas

That's all good and well now, but from your experience Mr Cozzo, would the grid as it is now be up to the task of supporting 15 million electric cars?

Nope, but thats not going to happen in the near future, its not like we're all switching to electric cars by the end of 2024.

The grid as it sits can certainly cope with EVs, the extra load in these areas where everyones solar keeps turning off because of too much solar input and not enough demand in the peak solar window would welcome it I reckon.

[b0son]

Originally Posted by Tassie f100

It does look like a rise,but 15mm in 130 years hardly headline,life threatening news.How do they measure it anyway,when every tide is slightly different.

The scale is in *metres*, the rise is 10*cm* in 130 years.

[Franco Cozzo]

Originally Posted by b0son

The scale is in *metres*, the rise is 10*cm* in 130 years.

Awesome, so in only 700,000 years I'll have a beach front property, I can't wait

[kypez]

Originally Posted by Franco Cozzo

Awesome, so in 700,000 years I'll have a beach front property, can't wait.

I bought in the Hills for this reason too. Many generations from now they can enjoy the beach at home

[fatgas]

Originally Posted by kypez

I bought in the Hills for this reason too. Many generations from now they can enjoy the beach at home

Your Hills is pretty, Franco's hills have, well, Franco

[kypez]

Originally Posted by Franco Cozzo

Nope, but thats not going to happen in the near future, its not like we're all switching to electric cars by the end of 2024.



The grid as it sits can certainly cope with EVs, the extra load in these areas where everyones solar keeps turning off because of too much solar input and not enough demand in the peak solar window would welcome it I reckon.

So much solar during the day that some providers are offering free power during the middle of the day. You're spot on that we are producing so much they just don't know how to use it all

[Citroënbender]

I’m quite accepting of the likelihood that widespread enthusiasm for cars as machines, will probably end in my lifetime. I don’t own them as investments but as tools, distractions and things to enjoy using. I’m less accepting of the idea that duration and scope of my enthusiasm may be foreshortened by blanket policies.

(Much like cars, I think many musical implements will soon enough fade rapidly from common use. People will interface with AI to generate stuff they want to hear - why waste hours practicing scales and repertory on a cello or trombone? This will also stop the wasteful production of many lesser grade instruments.)

[kypez]

Originally Posted by Citroënbender

I’m quite accepting of the likelihood that widespread enthusiasm for cars as machines, will probably end in my lifetime. I don’t own them as investments but as tools, distractions and things to enjoy using. I’m less accepting of the idea that duration and scope of my enthusiasm may be foreshortened by blanket policies.



(Much like cars, I think many musical implements will soon enough fade rapidly from common use. People will interface with AI to generate stuff they want to hear - why waste hours practicing scales and repertory on a cello or trombone? This will also stop the wasteful production of many lesser grade instruments.)

With my GTF, I feel that my kid will look at it and me as a social pariah for owing it when she's old enough to drive it. Though with fuel today at $2.55 a litre, I don't think I'll be driving it much by then either.

[Franco Cozzo]

Originally Posted by kypez

With my GTF, I feel that my kid will look at it and me as a social pariah for owing it when she's old enough to drive it. Though with fuel today at $2.55 a litre, I don't think I'll be driving it much by then either.

Getting driven to school in the GTF will be the equivalent of Mum doing the school run in her pyjamas with no makeup and a smoke hanging out her mouth

[fatgas]

Originally Posted by Franco Cozzo

Getting driven to school in the GTF will be the equivalent of Mum doing the school run in her pyjamas with no makeup and a smoke hanging out her mouth

And then a boob flops out as she runs to little Timmy to give him his cut lunch he left in the car

[Cav]

The earth is flat!

[T3rminator]

Originally Posted by Cav

The earth is flat!

Hence why we don't fall to the right side of the plane when we fly to NZ.

[Dr Terry]

Originally Posted by b0son

The scale is in *metres*, the rise is 10*cm* in 130 years.

10cm = 100mm = 4 inches in 130 years !! Hardly a "climate emergency".

Dr Terry

[kypez]

Originally Posted by Dr Terry

10cm = 100mm = 4 inches in 130 years !! Hardly a "climate emergency".



Dr Terry

If only it was linear

[Sprintey]

Sea level rise in last 20,000 years, 2nd chart shows much larger rises than today 18,000 years ago to 8,000 years ago - particularly meltwater pulse 1A which was that 13,000 years ago approxmately...

https://www.e-education.psu.edu/earth107/node/1506

...which correlates with many of the worldwide end of the world myths

Most of that huge rise is the coming of the interglacial period, so that means many of our ancestors' settlements are about 400ft under water now. Again, so many legends of the seas swallowing the land whether that be off the Sunshine Coast or beyond Land's End or anywhere else. It is likely that the Laurentide ice sheet collapsed, for varying hypothesis why it did. My favourite is Randall Carlson's* one, imagine 100m deep of water moving at 160km/h over about 2 weeks over an enormous area - it left the scars on the NW US landscape you can still see today...

This doesn't take away from today's sea level rises, as the oceans expand (and locally, as land falls away in areas). The oceans are absorbing much of the CO2 and they are a huge system with many feedback loops.


* here are a couple of the links, blows you away to think it could all happen so suddenly if you have enough water to do it:
https://www.youtube.com/watch?v=RaHO00ISseY
https://www.youtube.com/watch?v=NqpnDMBBSGE

[XB GS 351 Coupe]

Originally Posted by aussiblue

I don’t think that anybody who has even a rudimentary understanding of science can really believe that climate change is not happening and that it’s not and issue for all humanity.

No one has ever claimed that climate is not changing, it has done so for around 4.5 billion of years. Man made climate change is another story.

It's pretty hard to believe anything that we can do will cause any major changes in climate.