Climate Change

blowfly's picture
blowfly started the topic in Wednesday, 1 Jul 2020 at 9:40am

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seeds's picture
seeds's picture
seeds Thursday, 4 Nov 2021 at 9:28am

As I’ve said earlier I have driven a Prius.
Have watched the clip VJ mentioned about the hybrid Range Rover.
It’s specs..
Turbo 2lt petrol motor torque 640NM
Electric motor torque 275NM
When real torque was needed wouldn’t the computer revert back to the petrol?
Any ideas?

zenagain's picture
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zenagain Thursday, 4 Nov 2021 at 9:29am

I saw my first Toyota Mirai in the flesh the other day. Lovely looking vehicle.

Though both our cars are new atm, I reckon at least one of them when the time comes will be an EV. PHEV is pretty cool. You have the benefit of almost zero emissions and the other advantages what BB outlined above but you don't have the range anxiety of a pure EV. My wifes car is a 1,4tfsi and that's got heaps of power and is great on the highway. Good for about 700 k on a tank. IC engines are pretty refined these days though so a lot left in them I reckon .

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seeds Thursday, 4 Nov 2021 at 9:40am

Hi Zen the Range Rover on VL comment is a PHEV. They seem great especially for long trips. Review did mention best results with over night full charge.
Full EV sounds great for around town with home garaging/ charge

blindboy's picture
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blindboy Thursday, 4 Nov 2021 at 9:49am

The torque difference in the Range Rover is just a design feature. Range anxiety will reduce when every servo has a recharge facility.

zenagain's picture
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zenagain Thursday, 4 Nov 2021 at 10:02am

There's always the issue with charging time though- traditional IC car less than five mins. HFC vehicle about 5 mins to full and EV, even with 150kw charger looking at 20 mins + to get to 80%. I forsee huge problems when most cars are EV and lots of cars are needing to be charged at once. Can you imagine holiday times?

I know a couple of people with PHEV's and imo I reckon that's the best of both worlds right now until charging times decrease and range increases. For a daily commuter who can plug in at home or at work and usually overnight, it's a no-brainer.

seeds's picture
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seeds Thursday, 4 Nov 2021 at 10:07am

Design feature? Can you explain what you mean
It’s a heavy vehicle and the petrol motor torque is insane for a 2lt motor. It would be needed and appreciated when towing say a big caravan. The EVs output is respectable but in certain applications?
I know it’s the way of the future and I’m on board

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seeds Thursday, 4 Nov 2021 at 10:13am
zenagain wrote:

There's always the issue with charging time though- traditional IC car less than five mins. HFC vehicle about 5 mins to full and EV, even with 150kw charger looking at 20 mins + to get to 80%. I forsee huge problems when most cars are EV and lots of cars are needing to be charged at once. Can you imagine holiday times?

I know a couple of people with PHEV's and imo I reckon that's the best of both worlds right now until charging times decrease and range increases. For a daily commuter who can plug in at home or at work and usually overnight, it's a no-brainer.

That’s a good point about holiday times Zen. In general I’d be happy to stretch the legs for 20 minutes while I charge on a trip but if there’s a queue!

blindboy's picture
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blindboy Thursday, 4 Nov 2021 at 10:23am

Seeds the GMC Hummer EV claims 11,500 pd-ft which is 15,591 nm. So yes it was a design feature.

carpetman's picture
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carpetman Thursday, 4 Nov 2021 at 10:27am

Lol. Seeds, you're comparing a hybrid electric motor to a hybrid diesel or petrol engine....

You should be comparing a straight electric motor to a straight diesel or petrol engine. If you do you will quickly realize that an electric motor can produce much more torque.

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carpetman Thursday, 4 Nov 2021 at 10:28am

Just as an ad on the Rivian has 14,000Nm of torque and independent control of each wheel.

seeds's picture
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seeds Thursday, 4 Nov 2021 at 10:32am

No Carpetman I’m trying to understand how the future without diesel will work with EVs application where diesel motors were used. I don’t know much about this stuff.

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seeds Thursday, 4 Nov 2021 at 10:40am
carpetman wrote:

Just as an ad on the Rivian has 14,000Nm of torque and independent control of each wheel.

Ok so you sound like you can learn me a thing or two. I’ve not claimed to have any knowledge in this area.

blindboy's picture
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blindboy Thursday, 4 Nov 2021 at 10:35am

Easy seeds, forget the diesel, put in an electric motor. The only reason this isn't mainstream already is that Morrison campaigned against EVs last election.

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seeds Thursday, 4 Nov 2021 at 10:46am

Yep seems the future may well be bright BB.
Ps with the price of things these days let alone when I retire I’ll probably have revert back to a horse and cart

gragagan's picture
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gragagan Thursday, 4 Nov 2021 at 10:52am

Hopefully after the next election we have new leadership that isn't against EVs, and actually encourages them. This should see availability / accessibility rise and prices drop.

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nickca Thursday, 4 Nov 2021 at 10:53am

From July 2021 the Vic Gov has a tax on electric vehicles I think based on kilometres driven to make up for lack of excise as compared to petrol. This may deter some from making the change. I think they justify it by saying it’s required for upkeep of roads and infrastructure.

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gragagan Thursday, 4 Nov 2021 at 10:59am

Didn't Barnaby announce another tax on EVs just in the last week or two?

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dawnperiscope Thursday, 4 Nov 2021 at 11:25am

Seeds - I'm on a learning curve too with electric boats.
This might help - electric motors produce instant and consistent torque thru the rev range. So at low speeds a lower torque electric motor may well be producing the same torque as an ICE with a higher torque rating.
Torque from an ICE increases with speed until it hits the sweet spot in the mid rev range and then starts dropping off as it revs out. So its actual torque at low revs and high revs will be much lower than the rated torque.
Higher torque on an electric motor requires more current from the battery, which presents a challenge as it is harder for the battery to produce as it gets low on charge. So my understanding is that designers choose the lowest possible torque electric motor if they need to maximise battery life.

Hutchy 19's picture
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Hutchy 19 Thursday, 4 Nov 2021 at 11:36am

If it is the nuclear is the right choice for China why not Australia ?

As Bloomberg reports, China has over the course of the year "revealed the extensive scope of its plans for nuclear, an ambition with new resonance given the global energy crisis and the calls for action coming out of the COP26 Climate Summit in Glasgow. The world’s biggest emitter, China’s planning at least 150 new reactors in the next 15 years, more than the rest of the world has built in the past 35."

And while this information was publicly available, it wasn't until today's extensive report from Bloomberg that traders finally paid attention.

The effort, which could cost as much as $440 billion and which by the middle of this decade could see China surpass the U.S. as the world’s largest generator of nuclear power, would mean an unprecedented scramble to secure uranium raw materials, including yellow cake, oxide and so on.

indo-dreaming's picture
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indo-dreaming Thursday, 4 Nov 2021 at 11:36am
nickca wrote:

From July 2021 the Vic Gov has a tax on electric vehicles I think based on kilometres driven to make up for lack of excise as compared to petrol. This may deter some from making the change. I think they justify it by saying it’s required for upkeep of roads and infrastructure.

Ironically in NSW liberals brought in a rebate scheme of up to $5k and a guarantee of no user tax until atleast 2027

blindboy's picture
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blindboy Thursday, 4 Nov 2021 at 11:40am

Taxes will be necessary as the transition progresses but at the moment, given our need to reduce emissions, tax incentives to EV purchasers are sound policy.

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seeds Thursday, 4 Nov 2021 at 11:40am

Thanks DawnPeriscope.
So as I’ve found out through carpetman and BB the hybrids aren’t up to the job of towing say a caravan because the electric motor is too small. Remove IC motor more room for more battery and bigger electric motor = plenty torque and as you say right through rev range. Sounds good. Happy to learn something

Hutchy 19's picture
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Hutchy 19 Thursday, 4 Nov 2021 at 11:40am

An good example of how traders manipulate carbon credits . Wall Street are desperate for BIG piece of the action .

Zerohedge

As an example of Greta's actually valid point on carbon credits, in August, French energy giant TotalEnergies SE orchestrated a "carbon-neutral" liquified natural gas shipment with China National Offshore Oil Corp (Cnooc) last September. The math behind the carbon-neutral fuel "involved googling and guesswork," according to Bloomberg.

An insider who spoke with Bloomberg said junior traders at Total learned about carbon-neutral cargoes from a client who had already purchased two from Royal Dutch Shell Plc. They said the inexperienced traders were able to figure out how to neutralize the emissions of LNG through internet searches of green projects they could fund.

The traders were able to find a project thousands of miles away in Zimbabwe that allowed them to fund a carbon-neutral deal that allocated money to brush clearing to reduce wildfires. Bloomberg called the deal "complicated new math." There was limited evidence to support how Total's brush clearing in southern Africa would offset natural gas carbon emissions.

But to make it work, Total's pioneers of carbon neutrality first needed to find green projects capable of meeting two requirements: generate carbon credits backed by an international organization, without costing too much. After struggling to come up with an answer, the team set up a meeting with South Pole, a project developer based in Zurich that came recommended by rival traders. That's how $600,000 from a $17 million LNG transaction ended up, in part, paying for forest protection in Zimbabwe.

blindboy's picture
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blindboy Thursday, 4 Nov 2021 at 11:46am

seeds, I didn't say that. Many hybrids can tow though they are are at a disadvantage to full EVs and will mainly use the petrol motor.

Ralph's picture
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Ralph Thursday, 4 Nov 2021 at 11:50am

Worth a look.

seeds's picture
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seeds Thursday, 4 Nov 2021 at 12:01pm
blindboy wrote:

seeds, I didn't say that. Many hybrids can tow though they are are at a disadvantage to full EVs and will mainly use the petrol motor.

Yeah that’s what I assumed it will use petrol when towing so no advantage.
I had to join the dots from everyone’s comments but as you say once charge times and range improve things are looking good

Hutchy 19's picture
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Hutchy 19 Thursday, 4 Nov 2021 at 5:47pm

I am finding this quite ironic .

Coal was needed to keep the lights on at the all wind Climate Conference . I would have had trouble making all this up , even as a joke !

By John Constable of NetZeroWatch

The UK’s failing renewable strategy is a national embarrassment. Critically low wind power, for nearly the whole of yesterday, resulted in extremely high prices, with the two remaining coal units at Drax offering to saving the day at £4,000/MWh, nearly 100 times the wholesale price normal before the current crisis started, with many other fossil fuel generators also riding to the rescue at staggering prices.

Indeed, yesterday, 3 November, saw a new record for the total daily cost of balancing the GB electricity grid. The previous record of £38 million, twenty times the current daily average, was smashed by a margin of £6 million, with the new record standing at £44.7m.

udo's picture
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udo Friday, 5 Nov 2021 at 6:00am
seeds's picture
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seeds Friday, 5 Nov 2021 at 8:00am

Nice Udo. Those specs would work a treat in large 4x4s

blindboy's picture
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blindboy Friday, 5 Nov 2021 at 8:12am

COP26 summary?
In the unlikely event that all countries achieve their promised reductions we will still be looking at 1.8-1.9C increase. The probability then is at least 2C with a risk of running towards 3C. I think this amounts to a near total failure.

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Blowin Friday, 5 Nov 2021 at 8:30am
blindboy wrote:

COP26 summary?
In the unlikely event that all countries achieve their promised reductions we will still be looking at 1.8-1.9C increase. The probability then is at least 2C with a risk of running towards 3C. I think this amounts to a near total failure.

Sounds like a win win to me. You only have to look at the internal migration statistics for Australia to know that no one with any sense wants to live in the cold underworld and everyone who values life has moved North. Who wants the cold ? There’s no mangoes, you need a year round wetsuit and pale white skin makes beautiful people’s eyes hurt.

Only morlocks live South of 30degrees latitude. Global warming gives even the ugly stupid people form the barren frozen wastes South of Foster a shot at the good life! No wonder the orcs of Western Sydney are replacing cooling trees with black colourbond roof tops as fast as they can…..they want a taste of warm paradise !

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blindboy Friday, 5 Nov 2021 at 8:57am

Not having a shot, but if you are on an old banana plantation, have you ever had your soil checked for chemical residues? I came across this while I was looking for something else.

https://www.epa.nsw.gov.au/licensing-and-regulation/authorised-officers-...

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bonza Friday, 5 Nov 2021 at 9:01am
stunet's picture
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stunet Friday, 5 Nov 2021 at 9:28am
bonza wrote:

https://www.theage.com.au/world/europe/remove-distortions-mathias-corman...

is mathias feeling ok?

Flawless Groucho Marx routine from Cormann: "These are my principles, if you don't like them I have others."

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blindboy Friday, 5 Nov 2021 at 10:09am
Hutchy 19's picture
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Hutchy 19 Friday, 5 Nov 2021 at 10:14am

Blind one - here is a snippet regarding Green Steel . We all know that building windmills and solar systems requires a LOT of steel .

Critics will point out that the production of green steel – an innovative set of technologies that rely on hydrogen instead of coal – is just over the horizon. We certainly hope so, but we note that the hydrogen will have to come from fossil fuels or (gasp!) nuclear power, because otherwise the production of green hydrogen at scale will rely on the very same yet-to-be-built renewable energy infrastructure that will consume massive amounts of steel. How’s that for the circle of life?

blindboy's picture
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blindboy Friday, 5 Nov 2021 at 10:32am

The challenge of converting to zero emission electricity is much bigger than the green steel issue and is a key element in the overall transition. The technologies to achieve it exist and the finance is available The biggest problems are the lack of the political will within countries and the lack of skilled diplomacy between them. We have arrived at this point with very poor leadership across the wealthiest nations. Putin, Xi, Biden, Johnson, Morrison etc are not a team you would like to be betting the future of the planet on. But that is what we have.

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gragagan Friday, 5 Nov 2021 at 11:05am

Small fish I know but it's a sign. Rooftop solar generated electricity outstrips demand in SA

https://www.abc.net.au/news/2021-11-04/sa-generates-more-electricity-tha...

san Guine's picture
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san Guine Friday, 5 Nov 2021 at 11:10am
blindboy wrote:

The challenge of converting to zero emission electricity is much bigger than the green steel issue and is a key element in the overall transition. The technologies to achieve it exist and the finance is available The biggest problems are the lack of the political will within countries and the lack of skilled diplomacy between them. We have arrived at this point with very poor leadership across the wealthiest nations. Putin, Xi, Biden, Johnson, Morrison etc are not a team you would like to be betting the future of the planet on. But that is what we have.

“The government you elect is the government you deserve.”
― Thomas Jefferson.
and even if you can't/don't vote the slag still floats to the surface

Hutchy 19's picture
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Hutchy 19 Friday, 5 Nov 2021 at 11:29am

Blind One - Steel production as you would know accounts for about 8% of the human output of CO2 . If it is not in your challenges I shudder to think how big they are .

Especially as "Putin, Xi, Biden, Johnson, Morrison etc are not a team you would like to be betting the future of the planet on. "

You missed a few that are also not on your team . Modi , all of the OPEC leaders , countries aligned with Russia and the whole of the Developing world including Indo .

It would be much quicker to list all those that are on your team and give me the % of CO2 they create . I will help - start with Ahern .

These facts are one of the main reasons why , unfortunately , I believe that net zero to be " The Impossible Dream ".

If your predictions are correct the world would be much better spending the $US150 trillions mitigating the effects of Climate Change rather than trying to stop it happening by 2050 .

gragagan's picture
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gragagan Friday, 5 Nov 2021 at 12:41pm

A long read but interesting, some good info about EVs and batteries and heaps of other stuff
(yep another link haha)

https://www.abc.net.au/news/2021-11-05/climate-change-cop26-untangling-t...

blindboy's picture
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blindboy Friday, 5 Nov 2021 at 12:58pm

Thanks for that. It is an interesting read.

gragagan's picture
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gragagan Friday, 5 Nov 2021 at 1:19pm

It simplifies a lot of things, takes away the political white-washing we seem to get fed

san Guine's picture
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san Guine Friday, 5 Nov 2021 at 6:50pm

Thanks grag, love the positivity in a world that jumps on every little innovation with a negative spin.
Always a special interest group, always a nay-sayer, always a 'why things can't be done', always a please don't disrupt my happiness/freedom/liberty, always 'That's not how we did it in my day'.
Hopefully we will transition with minimal disruption, but if we can manage COVID, despite the negativism, perhaps there is hope for our species.

soggydog's picture
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soggydog Friday, 5 Nov 2021 at 8:30pm
Blowin wrote:
blindboy wrote:

COP26 summary?
In the unlikely event that all countries achieve their promised reductions we will still be looking at 1.8-1.9C increase. The probability then is at least 2C with a risk of running towards 3C. I think this amounts to a near total failure.

Sounds like a win win to me. You only have to look at the internal migration statistics for Australia to know that no one with any sense wants to live in the cold underworld and everyone who values life has moved North. Who wants the cold ? There’s no mangoes, you need a year round wetsuit and pale white skin makes beautiful people’s eyes hurt.

Only morlocks live South of 30degrees latitude. Global warming gives even the ugly stupid people form the barren frozen wastes South of Foster a shot at the good life! No wonder the orcs of Western Sydney are replacing cooling trees with black colourbond roof tops as fast as they can…..they want a taste of warm paradise !

Listening to a climate scientist the other day, the last ice age was caused by a 5 degree cooling. 3 degrees average rise across the globe may cause a few chinks in your tropical utopia mate. Wetsuits are ok.

soggydog's picture
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soggydog Friday, 5 Nov 2021 at 9:10pm

That was a great link Gragagen.

Hey Hutchy and any other champions of denial, give it a read. Have a good hard think. Vote accordingly.

Supafreak's picture
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Supafreak Friday, 5 Nov 2021 at 9:33pm

If the world was to experience an eruption like krakatoa , what effect , if any , would that have on solar power . I think the world actually cooled for a few years.

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indo-dreaming Saturday, 6 Nov 2021 at 7:36am
Supafreak wrote:

If the world was to experience an eruption like krakatoa , what effect , if any , would that have on solar power . I think the world actually cooled for a few years.

I wonder even just forest fires like in Indo where for months its almost overcast, same thing happened the other year in Vic for weeks.

Id expect you still produce energy but would lose a fair bit of what would normally be produced.

Thats why you will always need some sort of safety net and not just short term storage (batteries/pumped hydro), but an actual fuel, initially gas as in peaking plants which latter can be changed to hydrogen when have huge excess amounts of renewable energy to produce it.

It's the same deal if you currently have a solar set up with batteries in some remote place, no matter how many batteries you have, you would be silly not to have a diesel generator sitting there with fuel as a back up measure.

Hutchy 19's picture
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Hutchy 19 Saturday, 6 Nov 2021 at 7:48am

Soggy -Hey Hutchy and any other champions of denial, give it a read. Have a good hard think. Vote accordingly.

Sorry my comments are viewed by you as the river in Egypt . I believe I am a realist . Humans are so amazing ( I think we will have a new zero CO2 energy source in the next 20 or so years that I haven't even heard of ) . Look at the amazing things our species have achieved in 300 ,000 years .

Mother Earth is VERY proud of us imho .

Always thinking Soggy and always vote accordingly .

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blindboy Saturday, 6 Nov 2021 at 8:32am

Indo do you ever pause to consider that your views on the energy transition are pretty much in direct contradiction to those of the major energy intensive industries. While they see that net zero can be achieved, you apparently do not. They back.it up with detailed plans. You just assert an opinion with no evidence. Can you explain why you feel qualified to disagree with experts working in the field?