Storing Renewable Energy Using Thermodynamics
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Storing Renewable Energy Using Thermodynamics
1–10 of 21 posts
Re: Storing Renewable Energy Using Thermodynamics
#2forgive me if this is totally petty, but: "thermodynamic" is an adjective, not a noun.
"Storing Renewable Energy Using Thermodynamic" ... what, exactly?
Re: Storing Renewable Energy Using Thermodynamics
#3forgive me if this is totally petty, but: "thermodynamic" is an adjective, not a noun. "Storing Renewable Energy Using Thermodynamic" ... what, exactly?
First, not saying I believe that these guys are legit, but "thermodynamics" is a noun. Thermodynamic energy is a type of energy, like chemical energy is a type of energy. There is also nuclear, stored, potential, light, kinetic, and I'm sure I'm missing a few.
These are all basic physics concepts. These guys are claiming to be able to store the energy as thermal energy, and then get it back out at 70% efficiency without much degradation inside of 25 years.
All these ideas are plausible from a physics point of view, but I don't buy this simply because it requires an efficient way of converting heat to energy. If this existed, it would already be a holy grail for other reasons. Being able to turn the waste-heat from an engine back into more energy efficiently would be incredible. Right now, to get energy from heat, you typically need the heated material to be near something that's very cold, and you use the difference in temperature to get energy out of it. Or you boil water and spin turbines. It sounds like MAYBE that's what these guys are doing, if what they are claiming to be able to do is legitimate.
Re: Storing Renewable Energy Using Thermodynamics
#4forgive me if this is totally petty, but: "thermodynamic" is an adjective, not a noun. "Storing Renewable Energy Using Thermodynamic" ... what, exactly?
First, not saying I believe that these guys are legit, but "thermodynamics" is a noun. Thermodynamic energy is a type of energy, like chemical energy is a type of energy. There is also nuclear, stored, potential, light, kinetic, and I'm sure I'm missing a few. These are all basic physics concepts. These guys are claiming to be able to store the energy as thermal energy, and then get it back out at 70% efficiency with…
thermodynamics, yes.
"thermodynamic" is an adjective that denotes "having to do with thermodynamics".
this is utterly petty, i know, but it really jars.
Re: Storing Renewable Energy Using Thermodynamics
#5They claim 0.05€ (~0.06USD) per KWh lifetime cost. Anybody know how that compares to current prices of grid-scale batteries? I can't find a up-to-date source.
Re: Storing Renewable Energy Using Thermodynamics
#6The issue with storing energy is that en investment of building infrastructure to transport the energy where it is deficit of energy is a more market safe solution.
Re: Storing Renewable Energy Using Thermodynamics
#7I am missing a profound description of the technology. Where is the innovation? The website containing only some key words is too sparse to arouse serious interest.
Re: Storing Renewable Energy Using Thermodynamics
#8They claim 0.05€ (~0.06USD) per KWh lifetime cost. Anybody know how that compares to current prices of grid-scale batteries? I can't find a up-to-date source.
Pumped hydro is about 3x as expensive, and batteries I think are still more expensive than pumped hydro, so it's absurdly cheap.
Re: Storing Renewable Energy Using Thermodynamics
#9Interesting concept. Wake me up when they demonstrate 10MWh.
Re: Storing Renewable Energy Using Thermodynamics
#10Assuming about 300K ambient temperature (on site, above ground), 800K working temperature (store the heat at 500°C) and that the second law of thermodynamics still holds, the roundtrip efficiency can not be 70%. It must be below 40%, and not just a bit below.