TED: The missing link to renewable energy

Donald Sadoway is working on a battery miracle -- an inexpensive, incredibly efficient, three-layered battery using “liquid metal." /TED
siftbotsays...

Promoting this video and sending it back into the queue for one more try; last queued Monday, March 26th, 2012 6:19pm PDT - promote requested by my15minutes.

GeeSussFreeKsays...

I don't think this is even close to grid level storage, at all. For instance, in Austin this year, between 4 and 5 p.m we consumed 66,867 megawatts. For those who are counting, that is over 33k of these things. Lets talk about storing them. Each container would be 40x8x8 feet; or 2,560 cubic feet. Lets just say we need 1 hours worthish of power, so 33k of them. That is 84 million cubic feet! For reference, the Empire State building is 37 million cubic feet. So for one hour of power here in Austin, we would need about 3 Empire state buildings of liquid metal batteries, unless my math is wrong (someone check me!) If my math is right, this isn't even close to a grid level storage ability. Your going to need density on the order of 1000 better to even be reasonably sized at 84k cubic feet (about the size of a large factory, or concert hall).

The only reason to try and investigate battery grid backup is to address the issue of wind and solar being so energy inefficient, and volatile. It is a better solution to just have them generate secondary power and let new fission based technologies take hold; best of both worlds. Then again, I have a personal bias

GeeSussFreeKsays...

Imma throw in some recommended reading

http://energyfromthorium.com/energy-weinberg-1959/

http://books.google.com/books?id=4swk0glJuswC&printsec=frontcover&dq=Resource+Wars&hl=en&sa=X&ei=oFJxT-GRJ8eaiQKBg43nDA&ved=0CDgQ6AEwAA#v=onepage&q=Re
source%20Wars&f=false


First, from a genius that sums up the debates on energy like geniuses do.

Second, showing the horrors of the current state of energy production. There is no greater issue, IMO, than the production of energy as it relates to the quality of life for ALL men. The low hanging fruit for the improvement of lives is directly tied to energy.

EMPIREsays...

>> ^GeeSussFreeK:

There is no greater issue, IMO, than the production of energy as it relates to the quality of life for ALL men. The low hanging fruit for the improvement of lives is directly tied to energy.


I think you are so right on this. And the frustrating thing is, we live in a time where the possibility of cheap, clean, renewable, safe energy is just behind the horizon. We are sailing towards it, no doubt, but the boat is too damn slow!!

Having cheap energy available could change the lifes of SO many people around the world. It would rapidly help rise the bottom level of life quality to an all time high.

GeeSussFreeKsays...

AH HA! I did find a mistake. The data I pulled was for all of Texas, not just Austin (I didn't think it sounded right, 66 gigawatts is high even for a time traveling Delorean). We used closer to 2.7 gigawatts. Even so, as Texas manages its own grid, the original number would most likely still be relevant, though, you could diffuse that across the state among all your power distribution centers. Your still only talking about an hour of power at the theoretical level, and that isn't great when you consider the volatility factor of renewables. But I digress.

curiousitysays...

>> ^GeeSussFreeK:

I don't think this is even close to grid level storage, at all. For instance, in Austin this year, between 4 and 5 p.m we consumed 66,867 megawatts. For those who are counting, that is over 33k of these things. Lets talk about storing them. Each container would be 40x8x8 feet; or 2,560 cubic feet. Lets just say we need 1 hours worthish of power, so 33k of them. That is 84 million cubic feet! For reference, the Empire State building is 37 million cubic feet. So for one hour of power here in Austin, we would need about 3 Empire state buildings of liquid metal batteries, unless my math is wrong (someone check me!) If my math is right, this isn't even close to a grid level storage ability. Your going to need density on the order of 1000 better to even be reasonably sized at 84k cubic feet (about the size of a large factory, or concert hall).
The only reason to try and investigate battery grid backup is to address the issue of wind and solar being so energy inefficient, and volatile. It is a better solution to just have them generate secondary power and let new fission based technologies take hold; best of both worlds. Then again, I have a personal bias


I thought that he had clearly made the point that this investigation into grid battery technology was for the purpose of making those intermittent renewable resources reliable to the point that they could more easily attach to the grid. You are arguing that this isn't suitable for a purpose that he isn't designing it for.

cosmovitellisays...

Yeah i think they go between the intermittent source and the grid and stabilize the flow. Like a big slow motion capacitor.

>> ^curiousity:

>> ^GeeSussFreeK:
I don't think this is even close to grid level storage, at all. For instance, in Austin this year, between 4 and 5 p.m we consumed 66,867 megawatts. For those who are counting, that is over 33k of these things. Lets talk about storing them. Each container would be 40x8x8 feet; or 2,560 cubic feet. Lets just say we need 1 hours worthish of power, so 33k of them. That is 84 million cubic feet! For reference, the Empire State building is 37 million cubic feet. So for one hour of power here in Austin, we would need about 3 Empire state buildings of liquid metal batteries, unless my math is wrong (someone check me!) If my math is right, this isn't even close to a grid level storage ability. Your going to need density on the order of 1000 better to even be reasonably sized at 84k cubic feet (about the size of a large factory, or concert hall).
The only reason to try and investigate battery grid backup is to address the issue of wind and solar being so energy inefficient, and volatile. It is a better solution to just have them generate secondary power and let new fission based technologies take hold; best of both worlds. Then again, I have a personal bias

I thought that he had clearly made the point that this investigation into grid battery technology was for the purpose of making those intermittent renewable resources reliable to the point that they could more easily attach to the grid. You are arguing that this isn't suitable for a purpose that he isn't designing it for.

GeeSussFreeKsays...

My point still holds that to hold any descent amount of energy that they are producing when no one is using power requires a HUGE number of these things. This tech isn't really new, they have been using it for years, this is just a new formulation, tech has been around since the 60s. The problem is the same problem now as then, chemical energy density just isn't that great. If you are trying to use it as some type of regulator, fine then, but that isn't what he is talking about. He is talking about storing up volumes of energy that wind and solar make when people don't want it, then inject that to the grid when it needs it. You need this because renewables are unpredictable. To store any real volume of energy worth caring about, you need 10s of thousands of these. For comparison, a single 1gigawatt power station (a pretty standard size in the industry of power generation) generates enough energy for hundreds of thousands of people, even in the shade.

I'm not trying to be a negative nancy, I like advances as much as the next guy, I just don't like all this investment in renewables over real grid solutions. The energy density of wind and solar makes them impractical solutions for primary load generation, but that is all we hear about in today's energy topics. It is like talking about saving pennies when your trillion in debt. It bugs me, so perhaps I am harping to much on this
>> ^curiousity:

>> ^GeeSussFreeK:
I don't think this is even close to grid level storage, at all. For instance, in Austin this year, between 4 and 5 p.m we consumed 66,867 megawatts. For those who are counting, that is over 33k of these things. Lets talk about storing them. Each container would be 40x8x8 feet; or 2,560 cubic feet. Lets just say we need 1 hours worthish of power, so 33k of them. That is 84 million cubic feet! For reference, the Empire State building is 37 million cubic feet. So for one hour of power here in Austin, we would need about 3 Empire state buildings of liquid metal batteries, unless my math is wrong (someone check me!) If my math is right, this isn't even close to a grid level storage ability. Your going to need density on the order of 1000 better to even be reasonably sized at 84k cubic feet (about the size of a large factory, or concert hall).
The only reason to try and investigate battery grid backup is to address the issue of wind and solar being so energy inefficient, and volatile. It is a better solution to just have them generate secondary power and let new fission based technologies take hold; best of both worlds. Then again, I have a personal bias

I thought that he had clearly made the point that this investigation into grid battery technology was for the purpose of making those intermittent renewable resources reliable to the point that they could more easily attach to the grid. You are arguing that this isn't suitable for a purpose that he isn't designing it for.

curiousitysays...

>> ^GeeSussFreeK:

My point still holds that to hold any descent amount of energy that they are producing when no one is using power requires a HUGE number of these things. This tech isn't really new, they have been using it for years, this is just a new formulation, tech has been around since the 60s. The problem is the same problem now as then, chemical energy density just isn't that great. If you are trying to use it as some type of regulator, fine then, but that isn't what he is talking about. He is talking about storing up volumes of energy that wind and solar make when people don't want it, then inject that to the grid when it needs it. You need this because renewables are unpredictable. To store any real volume of energy worth caring about, you need 10s of thousands of these. For comparison, a single 1gigawatt power station (a pretty standard size in the industry of power generation) generates enough energy for hundreds of thousands of people, even in the shade.
I'm not trying to be a negative nancy, I like advances as much as the next guy, I just don't like all this investment in renewables over real grid solutions. The energy density of wind and solar makes them impractical solutions for primary load generation, but that is all we hear about in today's energy topics. It is like talking about saving pennies when your trillion in debt. It bugs me, so perhaps I am harping to much on this
>> ^curiousity:
>> ^GeeSussFreeK:
I don't think this is even close to grid level storage, at all. For instance, in Austin this year, between 4 and 5 p.m we consumed 66,867 megawatts. For those who are counting, that is over 33k of these things. Lets talk about storing them. Each container would be 40x8x8 feet; or 2,560 cubic feet. Lets just say we need 1 hours worthish of power, so 33k of them. That is 84 million cubic feet! For reference, the Empire State building is 37 million cubic feet. So for one hour of power here in Austin, we would need about 3 Empire state buildings of liquid metal batteries, unless my math is wrong (someone check me!) If my math is right, this isn't even close to a grid level storage ability. Your going to need density on the order of 1000 better to even be reasonably sized at 84k cubic feet (about the size of a large factory, or concert hall).
The only reason to try and investigate battery grid backup is to address the issue of wind and solar being so energy inefficient, and volatile. It is a better solution to just have them generate secondary power and let new fission based technologies take hold; best of both worlds. Then again, I have a personal bias

I thought that he had clearly made the point that this investigation into grid battery technology was for the purpose of making those intermittent renewable resources reliable to the point that they could more easily attach to the grid. You are arguing that this isn't suitable for a purpose that he isn't designing it for.



Ahh... well thank you for clearing up what he really meant beyond what he said. I guess I only had to go off of what he said.

direpicklesays...

@GeeSussFreeK: The idea isn't that you run the entire country off of batteries at night. The grid will be a mix of nuclear, wind, solar, hydroelectric, etc. etc. power. When demand spikes above what the renewables are currently producing, that's when the stored energy has to make up the difference. There's never going to be a time when the batteries are supplying all of the power.

I don't necessarily think batteries are the answer, but you're still attacking straw men.

GeeSussFreeKsays...

>> ^direpickle:

@GeeSussFreeK: The idea isn't that you run the entire country off of batteries at night. The grid will be a mix of nuclear, wind, solar, hydroelectric, etc. etc. power. When demand spikes above what the renewables are currently producing, that's when the stored energy has to make up the difference. There's never going to be a time when the batteries are supplying all of the power.
I don't necessarily think batteries are the answer, but you're still attacking straw men.


There no meaningful difference from what you are saying they will be used for and what I am saying they will be used for. If 20% of your grid is alternative, and as a result, unreliable, you need to be able to A) store 20% of the grid at all times or B) Have 120% capacity in the reliable sources. 20% of the empire state building for an hour of power is still pretty unreasonable.

I never suggested that your running the country on batteries at night, that is your own straw man back at me. Besides, renewables are fully incapable at providing their own max power in the day time as well. Power is about reliability, but I digress.

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