The Forum > General Discussion > Janus is doing Electric Trucking with battery-swap in 4 minutes, 33c / km when diesel is about 90c!
Janus is doing Electric Trucking with battery-swap in 4 minutes, 33c / km when diesel is about 90c!
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Posted by Aidan, Saturday, 3 December 2022 2:08:36 AM
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Max, mhaze and Bazz,
Similarly to how lasers don't disperse like ordinary light, microwave beams stay at high efficiency and AIUI can be converted back to electricity at a fairly high rate of efficiency. Even so, the technology's a non starter for supplying our energy needs. Too hazardous, too expensive, too much energy to set up, and probably too much global warming potential. Posted by Aidan, Saturday, 3 December 2022 2:09:05 AM
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Hey Aiden,
Max spoke about food here, and maybe other places. http://forum.onlineopinion.com.au/thread.asp?article=22234#387954 I think I might've been the one who brought up wet pet-food from an article I read, I suppose I saw it as being in line with the same sort of 'take-things-too-far' feeling I got from him when he'd already mentioned moving away from meat. http://forum.onlineopinion.com.au/thread.asp?discussion=9984&page=0#340682 As for coal, I'm not sure Max has been too specific on it; - But when I asked the question 'If it cost a trillion dollars to fill your climate change wish-list, and you could click your fingers and instantly 1 trillion dollars worth of our resources (coal, oil and gas) was instantly loaded aboard ships for export, would you do it? - He avoided the question which left me assuming his position was to leave these resources in the ground; - which made me think that people who aren't willing to do what needs to be done to get the money so we can move to a better way of doing things are preventing us from actually doing so, and I considered Max (maybe rightly or wrongly so) to be one of those people. I also pointed out that we can't exactly export renewable energy, but coal oil and gas we can. - Different countries have different resources and Australia's largely a country of mining, it's just the reality of the way it is for us. "I stand by what I said about Australia's debt not being a problem. The consequences of government borrowing are quite different to what many people assume, but I have never made (and would never make) the ludicrous claim that there are no consequences at all." - Maybe you didn't specifically say there were no consequences, but you did say (just as you have again now) that our debt isn't a problem. I'm sorry if I incorrectly stated what you originally said and meant. Posted by Armchair Critic, Saturday, 3 December 2022 2:53:42 AM
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Hi AC,
First up I will state the bloody obvious: We are discussing the future are are probably all wildly inaccurate. As for a working model I mean a 24/7 renewable supply. It is not hard to provide solar and wind energy piecemeal, but continuity is challenging. South Australia is the place to watch as it passes 70% renewable supply. If/when it hits 100% it will be a working model and costs can be calculated. Posted by Fester, Saturday, 3 December 2022 7:39:22 AM
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Armchair,
"The part I just cant get my head around is 'calories of fossil fuels' Its like saying I was traveling in my car at a speed of 100kg Or saying the plane I was flying in leveled off at 30,000 litres Or that the weight of one of the cows out in the front paddock is 500klms" Not at all. It's more like saying 10 kg or 22.0462 pounds. It's the same thing - weight - but measuring in a differnet 'language'. Calories are one way of measuring energy, BTU's another, joules another, barrels of oil equivalent another, etc. In reality it's probably coal energy running the Haber process. There are website converters that let you plug in the units of energy and convert them to equivalents in another system. Here is one - and I've rigged it up by converting BOE (Barrels Oil Equivalent Energy) to Kilocalories. https://www.unitjuggler.com/convert-energy-from-boe-to-kcal.html Go underneath and click your starting energy from the left hand column, and then choose what you want to convert it to on the right hand column. Wow - they've even got Megatons TNT! That's how we speak about nukes - and I'm not talking about the power plants but the kind that go BOOM! "I may be the dummy here, but it just doesn't make sense to me." I actually don't think you're that dumb. I'm not a scientist either but did humanities subjects. But this stuff can be understood if you google around - and try to stop being STUBBORN! (Winks - I'm having trouble in that area myself as I get older.) Posted by Max Green, Saturday, 3 December 2022 8:10:59 AM
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Hi again Armchair,
FOOD: Do you drink beer or wine or eat cheese or bread? These things are using yeasts and the by-products of yeasts, or at least some fermentation of some sort. Why are they not Franken-foods? We're just going to be tinkering with the yeasts to grow better proteins than we can get from animals. I don't think there will be laws BANNING eating animals. They'll just go the way of ice-haulers when fridges were invented, or Kodak film as digital cameras replaced them. The market will decide. Right now there are meat alternatives that have heme in the soy bean. That's the blood flavour us carnivores love - and I include myself in that category! Here's some vegetables 3d printed into something that works a bit like a steak - with alternative 'muscle' fibres layered with fats. I haven't had any of this one yet - but I had the Impossible Burger from Hungry Jacks and it was OK. Not fantastic - the texture wasn't quite right. But OK! And I hear Grill'd have an even more authentic tasting Impossible Burger 'meat' pattie. Vege printed steak. Take a look! One day all the proteins and fats and carbs we want might be printed like this into a whole variety of steak flavours we can't even imagine now. And instead of $25 per kg, it might not even be a few bucks. http://youtu.be/LJYWM-5taIE Posted by Max Green, Saturday, 3 December 2022 8:13:50 AM
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Calories are an obsolete unit of energy that's still in use. So are kilowatt hours, mega electron volts, and BTUs.
For comparison it makes sense to use the SI unit: Joules.
But energy is energy, and can be compared in any unit of energy. Just be careful not to conflate calories with kilocalories.
And don't blindly accept claims about "most studies" that don't cite any of them.
I don't see Max mentioning forcing people to eat mealworms or anything else. Is it in another thread? So far in this thread you're the only person to have mentioned mealworms. But since we're now on that subject, I expect they'll play a major role in fish farming.
BTW animal glue almost disappeared overnight when PVA became available.
And despite ttbn's libellous claims, I stand by what I said about Australia's debt not being a problem. The consequences of government borrowing are quite different to what many people assume, but I have never made (and would never make) the ludicrous claim that there are no consequences at all.
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Fester,
Why do you assume the absence of a working model? Renewable energy already provides the majority of my state's electricity. I haven't assumed any completely new
technology; merely improvements to existing technology. It would be unreasonable to assume that costs which have been falling for decades due to ongoing technological improvements would suddenly cease to fall, or that the many competing teams of scientists and engineers would ALL fail to find a way of commercialising what can already be done in the lab!
French nuclear power is cheap because cost of building the power stations was inflated away in the 1970s. Unless you're suggesting the government implement a high inflation policy, it's irrelevant for new power even in France, let alone here.
Even five years ago it wasn't clear how 100% renewables could be achieved. But now it is: go for a large overbuild, and use the excess power to produce hydrogen.