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  • [MUSIC PLAYING]

  • Imagine that we brought back Alexander Graham

  • Bell, the inventor of the telephone,

  • and we showed him our cellphones.

  • This is George Crabtree, senior scientist at Argonne Labs

  • and amateur necromancer.

  • His reaction would be what's that?

  • That's not a phone?

  • He'd be baffled.

  • Now bring back Thomas Edison and show him the grid as we have it

  • now.

  • He would instantly recognize every feature of that grid.

  • He'd go, I understand that grid.

  • I know how it works.

  • I know where the electricity goes.

  • In fact, I can run the grid for you if you like.

  • That just shows that one industry

  • has changed dramatically.

  • And it's really changed in the last 20 years.

  • The other, the grid, hasn't.

  • But it will change.

  • It may be five to 10 to 15 years off.

  • But I think it will come.

  • So your goal is to confuse the ghost of Thomas Edison when

  • he comes back.

  • Exactly.

  • [MUSIC PLAYING]

  • OK.

  • OK.

  • Why are we talking about the ghost of Thomas Edison?

  • Because the electricity grid is in need of a major overhaul.

  • It's inefficient.

  • It's wasteful.

  • And it could just be better, OK?

  • In a lot of ways, the technology of our grid

  • is stuck in the 19th century with good old Thomas Edison.

  • We need to bring it forward into the 21st century.

  • And to do that, we need to leave behind the old grid like we've

  • left behind this guy.

  • For this guy.

  • And today we've got smartphones.

  • Tomorrow, give or take a decade, we'll have a smart grid.

  • What you doing?

  • I'm playing Angry Birds.

  • A smart grid will really confuse the hell out

  • of Thomas Edison, right?

  • Right.

  • And Crabtree is spearheading that confusion effort

  • at the Joint Center for Energy Storage Research.

  • Which can be pronounced JCESR.

  • JCESR is a research partnership between

  • various academic and industrial labs

  • with commercial manufacturers with the expressed goal

  • of getting out the next generation of battery

  • technology and increasing our ability to store energy.

  • This is a storage moment.

  • We've suddenly realized this new emphasis on climate change,

  • that it's going to be a tough road to eliminate carbon

  • from our economy.

  • We don't have the technology for it.

  • Most of the carbon emitted into our atmosphere

  • comes from transportation and electricity generation.

  • That's because most of our cars run on gasoline.

  • And most of our power comes from the burning of fossil fuels.

  • These two together are about 2/3 of the carbon emissions

  • that the United States and every other country emits.

  • So we want to cut down on our carbon emissions.

  • But there's a minor complication.

  • It doesn't matter how many solar panels or windmills we make.

  • We're never to be able to completely go green

  • until we come up with a revolution in energy storage

  • technology.

  • That might sound like a daunting task,

  • but we've done this before.

  • In 1991, Sony came out with the first lithium ion battery.

  • And almost every aspect of the way we live today

  • changed because of it.

  • Because of its small size and rechargeability,

  • the lithium ion battery allowed us

  • to carry around our computers and cellphones wherever we go,

  • allowing us to be connected to instantaneous communication

  • and information at all times.

  • The lithium ion battery not only revolutionized the kind

  • of technology we could have, it revolutionized the way

  • we interact with each other.

  • You say something?

  • There's two more revolutions waiting to happen.

  • One is with electric cars.

  • The other one is with the grid.

  • And large, high density batteries like the one JCESR's

  • trying to develop could be the answer.

  • For the stability and effectiveness

  • of our power grid, energy storage is critical.

  • If you break it down, there's basically two places

  • where energy can be stored.

  • First, we can set up a giant battery

  • at the beginning of the grid, the power plant.

  • But why, you may ask, would we want

  • to store the energy a power plant produces?

  • Well, we don't use energy consistently

  • throughout the day.

  • At night, when we go to bed, we use much less energy

  • than when we're up and watching TV or microwaving Hot Pockets.

  • If a power point can store energy when we're asleep

  • or when demand is low, we could balance

  • the amount of electricity the plant would have to generate.

  • And since electricity prices are often

  • dictated by consumer demand, if we store and release

  • energy as needed, we can lower the price of electricity

  • during times of high usage.

  • But this load balancing is really

  • important for renewable energies like wind and solar.

  • Because they get their energy from sources

  • we can't control-- the sun and the weather--

  • their electricity production is highly variable.

  • When a cloud comes over, by the way,

  • that reduces the output of the solar plant by 70%.

  • Likewise, if it isn't windy, our wind turbines

  • don't work so well, either.

  • But if you have a battery, and you're

  • by your wind turbine or your solar array,

  • you can store up that energy when demand is low

  • and save it for when it's not very sunny or it's not windy.

  • For solar power, this is especially

  • important during sunset.

  • Which is the peak demand time.

  • Everybody's home from work.

  • They're turning on lights, turning on televisions,

  • starting to do things at home.

  • So there's lots of reasons to put storage centrally.

  • There are also lots of reasons to put it, as they say,

  • at the edge of the grid.

  • In other words, in your home.

  • Now this is where the grid can start acting like your phone.

  • And when we start to confuse the [BLEEP]

  • out of Thomas Edison.

  • So like old timey landlines where you can only

  • make or receive calls, our current grid only

  • lets you turn things on or off.

  • And dim, if you're in the mood and if you have a dimmer

  • switch.

  • Sure.

  • But that's basically it.

  • A battery lets you have more control.

  • So if I have a solar panel on the roof,

  • and I have a battery in the garage,

  • and if I'm gone all day at work and my solar panel's generating

  • electricity I can't use, I'd store it.

  • So now you have a lot of options,

  • thanks to your home battery.

  • Say you come home at sunset.

  • You could start turning on all your TVs and microwaves

  • and using that energy you saved up throughout the day

  • without being a burden on the electrical grid.

  • Or you could choose not to use it.

  • And all that clean energy you got from your solar panels

  • could be given back to the grid or even sold

  • to your local utility company.

  • Make a little scratch on the side.

  • Or you can do both.

  • You can customize your energy use

  • by controlling a battery with a computer, or more likely,

  • an app on your phone.

  • Which controls how much energy I get from the sun,

  • how much I put in my battery, and how I use that energy,

  • so all three of those things would

  • be controlled much the same way that I personalize my cell

  • phone to do the function that I myself need.

  • This gives the consumer a lot more power over his own energy

  • profile.

  • Pun intended.

  • Indeed.

  • As of right now, there are some home batteries

  • on the market and a few ways of storing energy

  • on a large scale.

  • The most popular method in the United States,

  • by a wide margin, is pumped hydro storage.

  • During low demand times, surplus energy from a power plant

  • is used to pump water into large elevated reservoirs.

  • When demand for electricity is high,

  • the reservoirs are drained.

  • And the pressure from the water spins a turbine

  • which produces electricity.

  • In fact, you can think of these giant reservoirs

  • as a type of battery where the energy

  • is stored in the form of the gravitational potential energy

  • of the water.

  • Other methods of energy storage include pumping compressed air

  • into underground caves, storing energy as heat

  • in molten salts, spinning flywheels, and of course,

  • large battery grids, like this one recently built

  • in Hokkaido, Japan.

  • Pumped hydro and compressed air storage work great.

  • But they suffer from the limitation

  • that you need either a large water source and high elevation

  • or a giant underground cave.

  • Batteries, on the other hand, can be kept anywhere

  • and provide near instantaneous power when needed.

  • But there's a problem.

  • They're great for phones and small electronics.

  • But for large scale applications like cars and the power grid,

  • lithium ion batteries are very expensive.

  • If clean energy is ever going to be

  • able to compete with coal and gasoline on a global scale,

  • we're going to need a new kind of battery.

  • George, you're our only hope.

  • Well, you're one of several.

  • So you need to make the battery about a factor of five

  • less expensive than lithium ion.

  • That's a huge job.

  • And you need to have an energy density

  • about a factor of five greater.

  • So if you want to compete, it's these factors of five

  • that you have to get.

  • So the way the battery community works right now, they

  • are indeed community, those four functions, discovery, design,

  • prototyping, and manufacturing are

  • done by completely different organizations

  • in different places quite often on different continents.

  • We combine all of those into one really communicative

  • organization.

  • So JCESR has not only a nice, big lab

  • like Argonne working on developing these new batteries,

  • there are several other labs working on multiple designs

  • simultaneously.

  • And these labs work in tandem with manufacturers

  • who could mass produce them and hopefully

  • get them to market sooner.

  • I have no idea what you're doing,

  • but keep up the good work.

  • The key is getting that factor of five increase

  • in battery life and storage.

  • And thankfully, there are several ways of doing this.

  • We've already counted 18 different ways

  • to design a beyond lithium ion battery.

  • And that means there's probably more than one

  • beyond lithium ion battery that will meet our stringent factors

  • of five improvement goals.

  • One of the main reasons lithium batteries are so expensive

  • is the materials that they're made of.

  • So Argonne National Laboratories and the other JCESR labs

  • are experimenting with different materials like magnesium,

  • aluminum, and even sulfur, all much more readily available,

  • and thus cheaper, than lithium.

  • You probably see improvements once every few months ideally.

  • We have a lot of people working on the project.

  • Are you optimistic about what you're doing?

  • You think you're going to make a amazing battery someday?

  • I mean, I think we can.

  • It's a big challenge to actually make these types of batteries

  • to work.

  • But there's a lot of promise to it.

  • No one's really explored the area before.

  • So we're kind of the first ones in.

  • That's why we see improvements.

  • So I believe that the will is there.

  • And it's sort of a global intention, a global will

  • to solve this problem.

  • It's not only in the United States.

  • It's not only the developing countries.

  • It's really around the world.

  • What do you think?

  • Do you think batteries will revolutionize energy the way

  • they revolutionized phones?

  • Would you consider putting a battery in your home

  • and generating your own power?

  • What would you say to Thomas Edison's ghost

  • if you saw him in your bedroom?

  • I would say-- [SCREAMS]

  • Let us know in the comments.

  • Yay!

  • Hey, thanks for watching.

  • If you like this, consider clicking Like and subscribing.

  • And you can go check out our patreon page

  • if you want to support our show.

  • Or if you really want to get involved,

  • you can join our digital street team.

  • You can click right up there.

  • Last week we-- what did we talk about last week?

  • We talked about the grid last week.

  • And you had a lot to say about it.

  • You sure did.

  • Too much.

  • But we've narrowed it down.

  • Desmond Miller at Radagast mentioned this new technique

  • for storing energy using giant underwater balloons.

  • Sounds kind of crazy.

  • But it'd probably work on a smaller scale.

  • And if you want to check it out, we

  • got a link in the doobly doo.

  • A lot of people commented on how

  • if we just bring your energy sources closer to the consumer,

  • we'll avoid loss.

  • Well, this video should have, hopefully,

  • addressed some of those concerns.

  • Battery storage will hopefully, one day,

  • fix this problem as more people put up solar panels

  • or wind power.

  • Or we figure out how to get power from our farts.

  • Fart turbine.

  • The fart turbine.

  • Fart turbine.

  • A furbine.

  • Thanks for watching.

  • Next week, we're going to talk about nuclear power.

  • Is it nuclear or "nukular"?

  • We'll figure it out next week.

  • Also, we talk to Derek Muller from Veritasium.

  • He's a cool guy.

  • He's a dream boat.

  • Yeah, he's a cool, cool drink of water.

  • I think we've revealed too much about our feelings.

  • [MUSIC PLAYING]

  • Yeah, [BLEEP] you, Thomas Edison.

[MUSIC PLAYING]

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エネルギー貯蔵に革命が必要な理由 (Why We Need A Revolution In Energy Storage)

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    songwen8778 に公開 2021 年 01 月 14 日
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