Discussions of conventional and alternative energy production technologies.
by Micki » Thu 12 Oct 2006, 05:16:42
Guess you're right MonteQuest, I don't get it.
Or let me re-phrase it. I don't think You get it.
You said;
$this->bbcode_second_pass_quote('', 'H')ydrogen must be made from an existing energy source.
Currently, that is mostly natural gas which will go into decline shortly after oil.
That is correct, and I already acknowledged that in my original post. Electricity can however also be generated without use of these fuels.
I never said hydrogen today was a viable option to replace oil/gas for transportation.
But if we continue rollout of nuclear power AND/OR sustainable ways of generating electricity, we will Increase the capacity for electricity/hydrogen based transportation and
become Less carbon energy dependent.
Note, I said Increase and Less dependent. Not replace.
Next quote;
$this->bbcode_second_pass_quote('', '2')nd law of thermodynamics says you will get less energy from doing this than you started with.
SO WHAT.
If you talk about using up 2 barrels of oil to produce 1 barrel, yes then you are right.
But we are talking about converting electricity (possibly from sustainable sources like solar, wind, tide, kite flying or what ever) to means of transportation.
In that case the system may be inefficient in that 1unit of energy perhaps only gives you 1/2 unit worth of transportation.
Well if it is worth it depends on what you need the transportation for and what, if anything, you need to sacrifice instead.
Lets take it to a small scale. And dont' get too hooked up on the figures, they are just there to illustrate the point.
If I for instance install some solar panels. This produces 10 units worth of energy.
In a perfect world I might be able to convert it to 5 hours transportation at a certain speed for a certain size/weight vehicle.
But with current inefficient technology I only get 1 hour transportation out of it. So I wasted 80% of the energy.
Well I might not care cause it gives me transportation fuel I otherwise might not have had. This may in a future scenario allow me to transport food and goods to a market so I can trade for a living, or to drive my sick son to a doctor who is far away or perhaps fuel a small boat motor so I can do some fishing.
And to make the point again.
I didn't say solar / hydrogen is a complete solution for replacing current fuels.
It is a matter of replacing some and then increasing that share over a peiod of time.
OK the share might not grow fast enough to offset the loss of oil/natgas.
That has nothing to do with what I am saying. My point it it is better to replace >0% of current fuels with something more sustainable than nothing.
Third;
$this->bbcode_second_pass_quote('', 'Y')ou don't quite get it do you?
There is no techno-fix for this so we can continue "happy motoring".
Well do you think technology can make harnessing of solar/wind or other sustainable energies more efficient?
Can conversion and storage as hydrogen be made more efficient?
If the answer is yes, then yeah, technology can help improve the situation.
And don't give me that "happy motoring" bull because that suggest you don't read my posts very well.
I think we are in for some hardship and major change. Perhaps starvation and/or wars and unreast.
But I think we can do things to cutback on some of the suffering.
You may disagree if you are just looking forward to mass die-off and a return to stoneage, in which case starvation etc may be the positive option.
Le't s find out then. Do you want to suffer from financial depression, starvation etc. If the answer is No, then perhaps you would like to have a vehicle that can be charged up through solar/wind power? i.e. a tractor or a boat. I know I would.
$this->bbcode_second_pass_quote('', 'E')fforts to maintain the status quo are doomed to make the matters worse, not better.
Once again, did I talk about status quo? I am again talking about making a bad situation a little bit less bad for some or with some luck for many.
We might go through terrible change and mass death, but can we start preparing for a more sustainable and still somewhat technologically advanced world for tomorrow?
Do you think we in the future could live in a world with better balance (ecological, mental, spiritual and so on) even if we don't live like amish?
Same thing to you Battle_Scarred_Galactico.
$this->bbcode_second_pass_quote('', 'T')he importance here is that hydrogen can help mitigate negative impact during a transition period.
I love this line, it makes it sound like the problems only short term then we can get right back to traffic jams and cheap flights.