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Nope, my minds not made up, that is why I thanked you for your offer to produce more relevant info than I could find. One thing on which my mind IS made up, is that political correctness does not necessarily follow science, or even common sense. We should all do the research, and make up our own minds.Quote:
Originally Posted by Homestar
It is entirely possible for us to not be using coal at all in a pretty short period of time - given the negative cost of electricity on the national market at various times recently, and the effect of that on fossil fuel generators, it won’t be too long before the predictions about stranded assets come true.Quote:
Originally Posted by Silenceisgolden
Not sure where political correctness comes into this? Unless you think that the science of climate change actually indicates that the world isn’t warming and it’s just politically correct to say so?Quote:
Originally Posted by Silenceisgolden
And that won't happen until two things eventuate.Quote:
Originally Posted by Silenceisgolden
1. greater demand for electrical power .. such as more rechargeable electric vehicles in use, and or industry manufacturing products, such as Al-air batteries come on line and reach capacity
2. age of remaining coal fired power generation reaches end of life. You can't be expected to decommission billion dollar investments at the drop of a hat.
The non alarmist, level headed reaction to this environmental situation would be to build more renewable capacity, which then reduces the need for reliance on the old tech.
So where coal may have contributed say 50% to the overall grid until recently, say in a few years, it then may only be required to contribute 10%, except when supply can't be met with the renewable infrastructure.
When the comment like "this is what the world needs ASAP" .. it could be meant that it's needed, to increase demand for electricity thus requiring the building of more electrical generation capacity(which will almost certainly be renewable in most developed countries.
Therefore, more renewable = greater percentage of reliance on coal fired(except as stated before .. demand requires it).
ie. chicken and egg!
I don’t think people posting understand how this works. It is not a rechargeable battery. It is a single use battery. The aluminum is consumed during use. It then needs to be replaced and the aluminum oxide extracted from the electrolyte.
Quote:
Originally Posted by Silenceisgolden
Also don't forget it takes as much electricity to produce a litre of petrol or diesel to drive a comparable vehicle the same distance as electricity alone will do, so the whole coal argument is moot.
EV's are more efficient & less polluting no matter where or how the electricity is made. ...... Even, dare I say, if you charge them from a petrol powered generator on the side of the road and that petrol was refined using electricity produced at a coal fired plant.
Do you have a reference for electricity use of refineries? My understanding is that most energy used in refining petroleum is generated by burning low value fractions of the feedstock - the only reason for using electricity other than for lighting etc would be if it was cheaper than the value of the petroleum byproducts (which certainly may be the case in some situations). And lighting, instrumentation and pumps would use only a tiny fraction of the energy content of the refined product.
First thing that came up with my google search shows an accepted value of 8kwh to produce one US gallon .Quote:
Originally Posted by JDNSW
my EV Landy is not what you would call an efficient EV but for the purposes of the argument it used an average of 33kwh per 100km over the last 12 months / 4600km ,
on petrol it used to drink a tad over 20l/100km or 5.28 US gallons /100km 5.28 x 8kwh equiv to 42.25 kwh/100km
Thats just efficiency, As well if we are talking emissions , Petrol / diesel pollutes twice 1st from mining & the refining oil & 2nd from burning the oil when driving the car , so EV clearly better for the environment .
How gas cars use more electricity to go 100 miles than EVs do | Autoblog
you forgot the part about being a money making scam and about controlling the peopleQuote:
Originally Posted by Arapiles
thats disturbing. cool at the same time. go to the service station and fill up with aluminum instead of petrol.Quote:
Originally Posted by Red90