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A comment on Twisted graphene has become the big thing in physics. Parent comment

Re:Twisted graphene has become the big thing in physics by tigershark on Friday May 03, 2019 @03:14AM (#19816229)
A huge amount of energy is wasted distributing electricity for 10s of thousands km. I am not sure how it can help storage though, even if you theoretically can let the electricity spin in a closed loop forever the energy density seems way too low to me.
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Re:Twisted graphene has become the big thing in physics by gingabriska on Friday May 03, 2019 @03:45AM (#19816372)
Graphene based supercapacitors have huge capacitance because graphene is single atom thick, so you can put a lot of layer of this material increasing total surface area hence capacitance for same volume of capacitor space used.
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Re:Twisted graphene has become the big thing in physics by gigatexal on Friday May 03, 2019 @07:32AM (#19817409)
Here's to hoping my phone has enough milliamps to stay alive for more than 8 hours and that this happens in my lifetime. #firstworldproblems for sure but come on it would be really cool.
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Re:Twisted graphene has become the big thing in physics by gingabriska on Friday May 03, 2019 @07:39AM (#19817458)
I've same problem, it's now less bad with Quick Charge and Powerbank combo but still bad.
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Re:Twisted graphene has become the big thing in physics by fsh on Friday May 03, 2019 @04:02AM (#19816444)
A standard 380 kV power line has a loss on the order of 1% per 100 km. Unless you want to span large continents, this doesn't seem like a big limitation at all.
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Re:Twisted graphene has become the big thing in physics by tigershark on Friday May 03, 2019 @09:14AM (#19818086)
Power Lines are several hundreds of km and even only 1% of the global electric production seems a huge amount to me... But in reality it is much more, in US is 5%: https://www.eia.gov/tools/faqs/faq.php?id=105&t=3
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Re:Twisted graphene has become the big thing in physics by fsh on Friday May 03, 2019 @09:45AM (#19818373)
These numbers show that the grid is already 95% efficient! It makes much more sense to improve the really inefficient parts, such as power plants and electricity consumers.
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