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#71
Nov 19 2019 05:17pm
Quote (Knoppie @ 20 Nov 2019 00:15)
^^

It has its purposes. Electricity (solar/wind) to batteries is way more efficient, who wants to build their network on hydrogen at a loss of 30% energy need to convert solar/wind to hydrogen? :P (bit kidding here because it has it still uses. Yes you can store ~2-5% of country needed gas in hydrogen as a supplement for gas needed in the winter, with our current grid, while kick-starting pure hydrogen initiatives and or expansion of the gas network to make hydrogen a key international and local interchangeable low CO2 emitting fuel).

I do kinda fancy the solar to stone energy.... Fuck needed resources ^^.. Really not joking around here, gravitational energy is quite efficient (90%+). Countries being able to pump up water behind hydro plants can become jealous of our possible refurbished coal mine-shafts!!, becoming gravitational electric storage devices: A lot of mass, with a lot of potential height energy. And I'm not kidding around, it works. Even locally at home. No needed resources, just a large weight and bit (or more) of height, as simple and barbaric as that is, it has potential world wide market if developing countries.. I might even start a new company :P


on a scale from 1 to snoop dog, how high are you right now? :P
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#72
Nov 19 2019 05:26pm
Quote (Black XistenZ @ Nov 20 2019 12:17am)
on a scale from 1 to snoop dog, how high are you right now? :P


Actually close to stop smoking, currently 1 j a day to keep the doctor away, 1 dec is the end of it. If you're interested. The post has more depth if you're able to ask the questions... Or even contest the logic.




/e: I've just given a seriously large, low resource required, highly efficient electric energy storage possibility for closed coal mines. And you're laughing at me ? How high are you?

This post was edited by Knoppie on Nov 19 2019 05:37pm
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#73
Nov 19 2019 05:54pm
Quote (Knoppie @ 20 Nov 2019 00:26)
Actually close to stop smoking, currently 1 j a day to keep the doctor away, 1 dec is the end of it. If you're interested. The post has more depth if you're able to ask the questions... Or even contest the logic.




/e: I've just given a seriously large, low resource required, highly efficient electric energy storage possibility for closed coal mines. And you're laughing at me ? How high are you?


how exactly are you suggesting to transfer potential energy (heavy object high up, releases its potential energy into kinetic energy when it comes down) into electric power? do you suggest filling these abandoned mines with water pumps and turbines to turn them into hydroelectric power plants?
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#74
Nov 21 2019 12:23pm
Quote (Black XistenZ @ Nov 20 2019 12:54am)
how exactly are you suggesting to transfer potential energy (heavy object high up, releases its potential energy into kinetic energy when it comes down) into electric power? do you suggest filling these abandoned mines with water pumps and turbines to turn them into hydroelectric power plants?


Pulley / cable / dynamo and something solidly heavy (single block or smaller blocks and perhaps even sand) in dry vertical shafts.. Not sure how many are actually dry in Europe, or how much energy it would require to keep a shaft dry.. If all of them are completely flooded, then heat exchanges could be pretty neat.

A single block of 30ton at 500m potential elevation =~ 500 Tesla batteries. (simple calculation) 30000*500*9.81/3600/85kwh = 485

/e. ow dear.. I just saw where that simple calculation went wrong.. Okey.. this potential energy is not that great.. The energy density is way to low.. better flood those shafts.

This post was edited by Knoppie on Nov 21 2019 12:46pm
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#75
Nov 21 2019 12:26pm
Quote (Knoppie @ Nov 19 2019 05:26pm)
Actually close to stop smoking, currently 1 j a day to keep the doctor away, 1 dec is the end of it. If you're interested. The post has more depth if you're able to ask the questions... Or even contest the logic.




/e: I've just given a seriously large, low resource required, highly efficient electric energy storage possibility for closed coal mines. And you're laughing at me ? How high are you?


just order some vitamin E THC cartridges from China. everyone knows its the nicotine products killing kids :P :rofl:
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#76
Nov 21 2019 12:36pm
Quote (thesnipa @ Nov 21 2019 07:26pm)
just order some vitamin E THC cartridges from China. everyone knows it's the nicotine products killing kids :P :rofl:


Nicotine just keeps you addicted to sell you more.. 3rd strongest drugs to get an addiction from, just behind heroin and crack. We should give those kids small weed pipes. ^
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#77
Nov 21 2019 02:36pm
Quote (Black XistenZ @ Nov 20 2019 12:54am)
how exactly are you suggesting to transfer potential energy (heavy object high up, releases its potential energy into kinetic energy when it comes down) into electric power? do you suggest filling these abandoned mines with water pumps and turbines to turn them into hydroelectric power plants?






Rofl.. Well look at that.. They claim that they can upscale it up to 12 MWh. (144 Teslas).. In, guess what ? A mine shaft :D (3.000.000kg * 1500m * 9.81m/s2 / 3600sec = 12.262.500 wh)



https://www.duurzaamgebouwd.nl/project/20170216-water-uit-mijnen-verwarmt-en-koelt-gebouwen
And there is the mine water heat exchanger.. Seems like I'm not as original as I thought :) This type of storage is notably more seasonally useful. To reduce the need for fossil storage for the winters.

This post was edited by Knoppie on Nov 21 2019 03:06pm
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#78
Nov 21 2019 05:38pm
It's absolutely necessary for the long term survival of Europe's cultural, social and economic values that we create our own independent defense system.


There's also the problem of Turkey if any changes to NATO were to happen. How do we deal with that?

Turkey is not an ally to Europe. All it does is backstab and blackmail us. If we need to face the consequences of a confrontation (diplomatic or military) with them, then so be it.

How do you currently view NATO?

We need to leave and form our own structure.

Should its role change, should the terms and conditions be reassessed? What would you change, if anything? I know that many here would love to see the 2% GDP contribution as a hard membership fee rather than an aspiration. Anything else?

Even if the EU's members leave NATO, I would like to see some sort of cooperation between both blocks. We can still be allies, but not in an americo-centric relationship. As for the 2% thing... as long as we're in NATO, it should be mandatory that all members deliver this.
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#79
Nov 21 2019 06:39pm
Quote (thesnipa @ Nov 21 2019 01:26pm)
just order some vitamin E THC cartridges from China. everyone knows its the nicotine products killing kids :P :rofl:


Dank tanks ftw
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#80
Nov 22 2019 05:49pm
Quote (Knoppie @ 21 Nov 2019 21:36)
http://www.youtube.com/watch?v=U7a_LMM2_fE


Rofl.. Well look at that.. They claim that they can upscale it up to 12 MWh. (144 Teslas).. In, guess what ? A mine shaft :D (3.000.000kg * 1500m * 9.81m/s2 / 3600sec = 12.262.500 wh)



https://www.duurzaamgebouwd.nl/project/20170216-water-uit-mijnen-verwarmt-en-koelt-gebouwen
And there is the mine water heat exchanger.. Seems like I'm not as original as I thought :) This type of storage is notably more seasonally useful. To reduce the need for fossil storage for the winters.


A super interesting and promising concept for sure! I like it. I'm still sceptical, however, of the "turn the winches into generators" part of the concept. And I'm also not sure how feasible it would be to hold a weight of 3000 tons with some steel ropes... particularly when the weight might be dropped quite suddenly in those <1s reaction time scenarios the vid is talking about.

This post was edited by Black XistenZ on Nov 22 2019 05:49pm
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