Can Underwater Turbines Solve Our Energy Problems?

[@RealEngineering]

Have you watched our new video on Real Science? When we posted it we only had 30k subscribers. Somehow it now has 1.4 million views. Madness kzbin.info/www/bejne/eJmXm36OqNaojaM

[@MrDrgdf]

Real Engineering Harnessing wind power, earth thermal energy, Tidal wave energies will not affect equilibrium of the system? What do you think?

[@Deqster]

Hello, thank you for another awesome renewables video! In your research for wave energy, please don't forget to check out the wave energy research at Oregon State University. They have made and tested a few different systems keep making awesome videos my friend!

[@adampancechowski5965]

Its mad how things get out of control 😂, I wounder if there is a pattern of growth of a channel over time that can predict future growth or determine the viability of a channel.

[@clampmotosua1789]

How about nuclear??? Oh that's right. Most people don't understand it and thus fear it. So we will just create a bunch of toxic chemicals to get the rare earth magnets for all the wind and tidal turbines. What about the land fills of Tesla batteries that will exist in 50 years. Also the creation of solar panels have a gas byproduct that nothing can absorb unlike Co2.

[@treelonmusk8324]

I 100% disagree on ocean turbines, the amount of sea debris and oil it would out in the ocean we dont need it at all,nuclear fission is the best way to make energy without doing any damage

[@piltrid1]

Me: "Ahhh, the serenity!" Engineer: "Ahrgh, the wasted energy!"

[@jamestorrentera]

piltrid lol

[@princebrandie7447]

Engineers: Welp! Fishies get ready to be slised in half.

[@princebrandie7447]

Engineers: Welp! Fishies get ready to be slised in half.

[@MCroppered]

Get in the bin

[@justagenosfan]

your engineer speaks like electroboom

[@krin3x93]

Am I supposed to ignore the seal slapping his sleeping buddy and pretended he didn't do it!?. 10:19

[@rubenvanbelzen1217]

I didn’t notice it at first, but now I did! It’s hilarious!

[@omb5722]

HAHAHAHAHAHAHAHA

[@anvutrong6870]

Lolololol

[@mariawoo843]

Hilarious!

[@vishank7]

😂😂😂😂lololol Awsm!

[@planefan082]

The captions say "if we can find a suitable way to harass the power of the tides" instead of 'harness' and I love it

[@hvhhvvggg8663]

Would be surprised if the tides appeared in court to claim harassment

[@lisztomaniac8985]

Well that's correct of you view it from the perspective of the tides

[@hunterhofmann3785]

As a deaf person, the captions make me roll with laughter so often

[@richardmillhousenixon]

It also says "Harassing all that energy, while transporting it..." about 10 seconds earlier

[@pazz1239]

New age introduces new challenges, even legal ones

[@theultimatereductionist7592]

8:46 "544-page-long environmental report which I read to the best of my ability" BRAVO!! I salute you!

[@Shinkajo]

543 of which nobody will read

[@powewq1748]

@@Shinkajo go fuck yourself

[@Shinkajo]

@@powewq1748 ladies first

[@saecrem3410]

10:18 love the way the seal slaps the other seal

[@Knee-Lew]

that reminded me of the fake video where the penguin slaps its friend. but for this time, it's real. 😂

[@ianmacfarlane1241]

It's the fact that it tried to pretend that it wasn't him/her. "Nope, wasn't me - I've been sleeping all along."

[@FyTube12]

It went out of its way to do that, I hope it was worth it

[@mattb9343]

I love the way he just lays back down like nothing happened, but the other seal just keeps looking at him like: WTF?! 😂

[@RaRa-cy8mj]

Funniest

[@JonMcMenamin777]

*taps surface of ocean* "This bad boy holds so many MW/h"

[@iafozzac]

MWh, it's W*h not W/h

[@altaccount4697]

Try TWh!!!

[@woohooman-fl9vq]

Megawatts are a unit of power. Mw*h are a unit of energy. Please don't misuse them.

[@thapelomashaomasemola7922]

@@woohooman-fl9vq or what?

[@tinycockjock1967]

@@thapelomashaomasemola7922 The energy police is gonna use us as electro-bicycle slaves

[@wolflegion_]

“That sound you hear is wasted energy” Now I know why waves are such a relaxing sound. It’s good to know that I’m not the only one wasting energy.

[@Clarity520]

ASMR channels be like

[@robinsss]

it's bad to know : we could using that easily accessible energy right now but we are digging thousands of feet into the ocean floor for pollutive oil

[@yoman5136]

robinsss If you’re anti oil then shut up, sell your car, rid yourself of everything oil based, realistically, remove everything from your home and the home itself because oil played a part in mining, harvesting, producing, creating it and bringing into your life. Oh, and also stop eating because oil brought food to your mouth too !

[@zodiacfml]

lol. that got me too.😅 poor choice of words, otherwise, we'll never be able to list all the wasted energy in this planet alone

[@robinsss]

I am not anti oil : I am anti fossil fuel : and we can make most of the products you mentioned with vegetable based oil

[@skapslag]

*waves exists* Engineers: It's free real estate.

[@MrSupergingerman]

@ϟϟ White Wolf ϟϟ it's an older code but it checks out

[@AceDeclan]

That doesn’t make any sense

[@thefirstsin]

Engineers: *Yes yes the power is mine*

[@ikadahliapusparini8069]

Its not free duh

[@charlesballiet7074]

@@AceDeclan its a starwars meme

[@ooglek]

I'd love to see an updated version of this video for 2021! How as the Scotland install gone? Great, comprehensive video.

[@ICGedye]

A few years back there was a project some guys at my company were working on with Imperial College utilising tidal movement. It didn’t involve any wet moving parts, just tubes angling down into the water. The idea was that as the column of water in the tube moved up and down the associated air movement would turn an impeller directly mounted on a generator. They trialed it in a canal lock and it worked pretty well. Almost no maintenance was required and they could be ‘hidden’ from sight under soil and plants. They were waiting for funding to take it further. I have no idea what happened after that, I left the firm in 2004.

[@c.s1393]

Maybe it wasn't economical.

[@stevenlonien7857]

Hoover dams in tides ignored that reverce naturaly at peak 4 + times rpm gearing to light speeds if wormhole wanted and you built you own maganetic bearings they control

[@PerhapsNoodle]

kzbin.info/www/bejne/oYnJhKV5jKZqp6M

[@ICGedye]

@@PerhapsNoodle that’s great thanks for the link. I’ve not heard of the well’s turbine design. It’s a great innovation and has the same low maintenance profile as the project I was aware of which was based on tidal movement which is a bit different, but still harnesses the natural movement and power of the sea.

[@brrrrrr]

@@stevenlonien7857 what is wrong with your brain

[@legendarysideburns2213]

I stuck a turbine in my neighbors fountain and I haven’t paid one cent for electricity ever since

[@jackm2379]

Must be quite some fountain!

[@trabladorr]

I'm guessing the two statements are unrelated

[@working2bselfsufficient724]

Is she good looking? Room for another turbine? 😂

[@BeHappyTo]

​@@trabladorr does one pay for electricity in prison?

[@seneca983]

He's not paying one cent for his electricity. He's paying a lot more than that.

[@wearevanimals90]

Really great video. I am currently completing a PhD looking into collision risk between these devices and animals and was extremely impressed with your well rounded points on environmental issues! An additional bit of information that may have been worth incorporating into your calculations on the long term costs/time to recoup investment - Meygen plans on installing larger 2MW devices in the next stage rather than the 1.5MW devices currently installed - making development more efficient.

[@jonathanharding3056]

Never gonna enjoy the beach ever again knowing about all that wasted energy

[@2406ab]

First law of thermodynamics, energy cant be wasted.

[@jonathanharding3056]

@@2406ab I understand the basics of physics. The energy of the ocean is wasted because it isn't being used to power my laptop so I can reply to you

[@jonathanharding3056]

Engineering won't stop until the sound of the waves is a thing of the past and all beaches become power generators and the whole world turns to energy 😈🌍⚡

[@2406ab]

@@jonathanharding3056 "not used" and "wasted" is a big difference. exactly as you said: the energy is not used, but its not wasted. because energy cant be wasted.

[@crusherven]

I had a strong reaction to that statement. Wave energy is not wasted. The action of the waves is a vital part of coastal ecosystems, and is definitely not "wasted." Better to say that It's not harnessed for man's direct benefit.

[@YassinElMohtadi]

13:28 What a great message !!!! i'm sure Sam will appreciate the gift

[@nebukadnezar4431]

This opening line has just become my favourite engineers quote ever :)

[@tejaskapil6803]

0:11 That's what my 'friends' tell me every day :D

[@beepthemeep12]

Yep

[@FightingPinguin]

Everytime i fart...

[@salciano]

I did a work on this around 10 years ago, for Portugal. I'm surprised to know how little seems to have changed...

[@JerryDLTN]

Politics F's up everything

[@stevenlonien7857]

No change in phony betz claim my automatic feathering flat blade radial windmills both horizontal and vertical is Einstines equal and opposite 100% not allowed since 1919 betz reelecting policy scam when oil discovered its duty of presidents to see laws enforced that is only way.against nuclear and oil solid hold on banks i just squeaked by broke now its up to forcing Biden. Praying always works me to.amen named bejesus windmills. the stonewalling is expected in Test of spirit

[@jeffw8218]

Why are you so surprised?? Edit: My point was, it’s very difficult to get energy out of the ocean, as can be seen in the lack of progress on this issue. We’re better off sticking to Nuclear Power for now.

[@salciano]

Well, because it's been decades since these problems arised. It's nothing new. We've been asking the exact same questions and considering the very same potential ambitions for decades, now. From the looks of it, it doesn't look like we've gone very far, according to this video. So, I was kinda disappointed about the lack of answers or solutions here, which I think should have been long resolved. Especially considering all the projects, time and media going around this... I remember a project from the 90s (Pico OWC Project), among others (Pelamis, São Pedro de Moel). We're in 2021 and sadly this video from 2019 brings nothing new...

[@tshawtshi3040]

I think it's because this is a very difficult problem to solve

[@SamiCoopers]

I like the wave energy air turbines, where the wave moves up and down in a closed chamber. The air in the chamber is pushed out and sucked back in through a turbine. I think it would be easier to maintain than underwater turbines. Also rather than placing them on our precious coastlines, you could have a sealed tunnel to the turbines further inland.

[@DavidRice111]

What about barnacles, and other sealife infesting those tubes? Over a short while, they'd render them unproductive. Just stop fighting what has been proven to work: fossil fuels & nuclear! Your libbie "ideals" won't do much good when the "rolling blackouts" hit YOU!

[@SethMethCS]

Anything that offers a real solution, even using accepted science, does not get built because it could take their domination away.

[@matrick1356]

Everyone: the ocean's sound is so beautiful and calming Psychologists: the ocean's sound gives people a calming effect Real Engineering: tHe oCEan's SOunDs Are wASteD enERgY

[@rollerskdude]

I think people on this channel sympathize with all 3.

[@robinhyperlord9053]

You mongoloid

[@ryanbd8354]

Real Engineering. This new content is amazing! Are you ever planning on doing a video on nuclear fusion?

[@Saiqo17]

oongk ooongk

[@TheusKhan]

Up

[@gabrielmartins-qd8wx]

Up

[@steelshower7949]

Up

[@TheHilariousGoldenChariot]

Up

[@wildestmage4254]

Engineer--->👤 Engifar---> 👤

[@King8js_Plays]

Smart

[@snazz1363]

the engineer is engi-here

[@goofygoober7248]

Get my like and get out 😤

[@luongmaihunggia]

Not funny

[@blackbed5108]

@@luongmaihunggia no u

[@realname2404]

2 windmills were talking to each other Windmill 1: what kind of music do you like? Windmill 2: im just a metal fan really

[@error5202]

*Internal screeming*

[@flyingsalmons934]

Amazing this Is underated

[@zaddy49]

Windmill 1: What kind of music do you like? Windmill 2: HOLY SHIT! A TALKING WINDMILL!

[@internet_internet]

Nice one, dad!

[@ahmadal-mkari5953]

13:28 Personal message: "Here's a gift to make you less of a dipsh*t" XD

[@acommenter]

sent to wendover productions.

[@sultanhassan2505]

Fake

[@dogcarman]

Well spotted!

[@laihela]

@@sultanhassan2505 Ur mom's fake

[@michaelkeaton5394]

In France we also have programs of underwater turbine, there two designs that were made a prop design like the one seen in the video and a tubular design where the pal are un a tube, even tho this design seems to not be viable since naval group had problems with oxidation, but prop design seems to be working pretty good since it's on test on the coast of Britanny where there are some of the strongest tide in the world

[@ryanbd8354]

This content is amazing! Nowhere else on KZbin do you get such objective and insightful content - thankyou Real Engineering!

[@KerbalChris]

Nuclear is still green

[@zylaaeria2627]

"Wasted energy" That is what I think of whenever I look at the stars in the night sky.

[@Alexander_Kale]

Every day we are down here instead of up there, the sun makes a mockery of every tree hugger who wants to "save energy"...

[@optillian4182]

You really look up at the night sky and think to yourself "ah yes, dyson spheres that don't exist yet"? You're weird.

[@Alexander_Kale]

@@optillian4182 You mean you don't? Then don't talk about saving energy.

[@Alexander_Kale]

@a normal everyday Spider Hilariously, no, that is not the point. The paradigm should be to GET to the point where we CAN make use of that energy as fast as humanly possible, thus minimizing wastage. Which means not slowing down now. If anything, we should be speeding up. Saving energy is one thing, preventing the sensible use by curtailing production is entirely another.

[@faybrianhernandez2416]

It would take more energy just to get close to a star let alone get any energy from it.

[@GoldenTV3]

Engineers: "We have created a device that can power all of our needs" Politicians and College Students: "DA FISHIESSSSSS"

[@Sizifus]

Earth: **hums in wasted energy** Engineers: "That's a free real estate!"

[@jamestorrentera]

Sizifus lol

[@thefirstsin]

Engineers: "That's wasted energy" Other companies: *wait that's illegal*

[@ttystikkrocks1042]

No energy that moves through the Earth's system is wasted. The environment does utilise it one way or another. That said, there's plenty extra for humans to put to use. I still think rooftop solar is an idea that needs to spread throughout the world; after all, it works best when the need for AC is greatest, and therefore offsets the load effectively.

[@Alexander_Kale]

@@ttystikkrocks1042 Winters must be pretty light where you live, yes?

[@buhbuh305]

Dad: you see that? Son: the sun? Dad: no its wasted energy

[@denzelsmashsymptom4264]

Dyson sphere theme song intensifies....

[@The_Hell_Lord]

MY EYES! DAD I DON'T WANNA LOOK AT IT ANYMORE!

[@drewcipher896]

Dad: you see that? Sun: a mirror? Dad: no it's wasted energy.

[@liggerstuxin1]

The_ Hell_Lord 😂

[@StoutProper]

All sons waste energy...

[@jorissplinter]

as a surfer I have to say: not every wave is wasted energy! hahaha

[@soncries]

That is waves, not tidal

[@atomicbuttocks]

Shaaaaaah brah

[@Verrisin]

“Listen to the ocean waves.... That sound you hear? _That's wasted energy!_ ” Whow, how *romantic!* - we are both dying alone, my mate XD

[@tinycockjock1967]

Gonna be honest this is the first time I see “my mate” used that way

[@Verrisin]

@@tinycockjock1967 XDXD reading it back, it is a tiny bit weird. XD - Normally, I would just say mate (or pal or whatever), but I wanted to express that we are in it together, so it came out like this. XD - What way would you normally see it used as? (English is not my first language)

[@devinjones1337]

Don't worry, we will all die alone. :-) kzbin.info/www/bejne/eoq2dWVtgrqNeKM

[@HikariMagic20]

"Next time you're near the ocean, listen closely to the waves. That sound you hear? That's wasted energy." How does humanity approach a Type 1 Kardashev civilization? Be able to utilize and store all of the energy available on its planet. Utilizing the energy of the oceans is another step to gaining a more harmonious future with our planet.

[@HikariMagic20]

@Joe Sloan I guess I'm just ignorant of such developments as I have not seen much supporting evidence of such knowledge that could propel us into what is written about currently only in fiction novels. I am aware of some tech that is a decade or so ahead of what the general population has access to. So, nothing too crazy advanced. Then again, I am just a simple person who is aware of how little I actually know and that no single person could learn all that has been learnt by all of humanity all on their own. Perhaps that is why I'm dabbling in creating my own science fiction world.

[@johnshilling2221]

Like I said elsewhere, pure sci-fi. The scary thing is that you are able to vote, if you're old enough...

[@HikariMagic20]

@@johnshilling2221 Are you talking about Joe Sloan, or what? Otherwise, I'm not sure how being able to vote would be a scary thing.

[@HikariMagic20]

@Romano Coombs That really depends on if doing something results in harm. Commensalism is when there is no harm on one side, and benefit on the other. This type is better than what Humans have been doing to the Earth so far in so many ways. Ideally, mutualism would be the end goal but achieving commensalism would be a huge step.

[@RickMason-yj7pv]

Don't believe it.

[@kenhunt9863]

I truly hope this energy system expands and takes hold , the ocean is such a large untapped source of energy and exploration

[@LuciusC]

13:28 Nice "personal message" there.

[@cwmd7651]

lmao good eye

[@tinycockjock1967]

I love the casual rivalry they have going

[@aidang7519]

Nice

[@myrealusername2193]

Yes it’s a great compliment lol

[@77Treasurehunter77]

Love the comment that was put in the Brilliant Subscription message @13:29

[@jamespabonita5510]

Every time they say it's "too costly to manufacture," I always get the sudden urge to become a billionaire and finance these brilliant ideas. These people inspire me to help solve current societal problems.

[@cyklonetidalenergy7141]

Pls do. Otherwise help me crowdfund kzbin.info/www/bejne/pKLFh4eMgriGiq8

[@FireWyvern870]

Indonesia is gold mine for energy : wind (from Asia and Australia), geothermal (ring of fire), solar (tropical country with 2 seasons), oil, charcoal. This technology can also be implemented since majority of the country is sea

[@aronseptianto8142]

now only if we are not broke (i'm not saying we're poor but we're not first world either)

[@CheekiScrubb]

geothermal energy has been implemented a couple times and seemed promising at first unfortunately the problem lies not in the construction but rather the maintenance required to sustain such systems

[@CheekiScrubb]

the problem being not the shortage of man power but rather the man power *quality* or lack thereof. since most of the man power available mostly does not meet the standards required for such -arguably- high technology compared to existing coal and gas powerplants

[@CheekiScrubb]

as such implementation of renewable energy powerplants is simply a gamble of risk and benefit that the previous government simply cannot take

[@aronseptianto8142]

@@CheekiScrubb I think we do have plenty of smart people here, we just don't have the discipline or the bureaucratic will to maintain such complex systems. When something convoluted is at play people tend to see opportunities for corruption, big and small. When the stakes don't seem that high, it's often observed that Indonesian tend to just go "eh, what's the big deal, we can do it later" (I'm not being racist I AM Indonesian). Until the critical point where a tsunami hits and no alarm is given or the solar farm starts to lose efficiency because nobody bothered to wipe the damn thing. In a way, the problem is not only of economy but also culture

[@ignasanchezl]

Hear that uranium slowly decaying? That's the sound of wasted energy.

[@matthewgrotke1442]

100%

[@gary4936]

I support Nuclear Power plants too if that's what you mean.

[@dednside5229]

That and all the hydro dams thier dismantling

[@faybrianhernandez2416]

Thorium takes longer to decay.

[@sandman5587]

Faybrian Hernandez Thorium Rocks

[@veggieboyultimate]

Haven't heard much from tidal power, where and how does it stand now?

[@mjhollerATme]

There is a new player in the game, CYKLONE tidal energy, very very promising though in an early stage. Their idea is to build smaller turbines but they use knowledge from wind turbines. Their calculations predict a very good energy conversion. Check this out: kzbin.info/www/bejne/pKLFh4eMgriGiq8

[@hellssurprise9338]

@@mjhollerATme watched it all and very interesting, going to visit their website and have a look at them in depth. Fossil fuels disappear when used, thats not great one bit, that creates dependence and no matter about contracts and all of that dependence is vulnerable and the world is heading into further chaos and bullying, countries need to be self sustained

[@pm6214]

long answer: the video short answer: *underwater windmills*

[@solentbum]

@@bennylofgren3208 Tidemills.

[@camerontolley8597]

Barry PURKIS dihydrogen monoxide turners

[@nicomaryangao9929]

aquamills😂

[@cyklonetidalenergy7141]

freestream tidal power turbines

[@Skyfox94]

9:20 it would be very interesting to see how these areas would behave in the long term - i could imagine that certain species might actually seek refuge in areas like this, where their hunters might not follow them.

[@billthomas635]

Low density energy, inhospitable environment. "Houston, we have a problem".

[@masterimbecile]

"Next time you're near the ocean, listen closely to the waves... ... it's wasted energy." You've got a funny sense of romantic.

[@TheBenduOrder]

First we must ask permission from Aquaman and the people of Atlantis!

[@Guds777]

You have to go Through Ben Affleck, he is his agent, just call his assistance Robert Pattinson, he got his number... :D :D

[@gamervoyoger]

i actually thought of this when i was about 11-13 years old approx. 13-15 years ago and presented it as a school project, it was generally misunderstood as a water wheel due to my poor presentation skills but it included thoughts about marine life and that was the major reason i found it unfeasible. to my surprise the sound actually made marine life stay away, i had always thought there would have to be a big net and even then some would slip through and ruin the turbines...

[@GarfieldRex]

An innocent question: can too many turbines stop or decrease marine currents enough to affect ecosystems?

[@MrDosonhai]

Can you imagine how many species would be killed by wave turbines just like wind turbines have killed birds :(

[@notme7728]

@@MrDosonhai oh shut up seriously. I've worked on large scale wind farm projects and this bull shit about killing birds is completely rediculious. Birds fucking have eyes.... They SEE THE TURBINE. See and avoid. Jesus.

[@Frups12345678]

@@MrDosonhai Here is a list of cause of deaths of birds in the US (I am using the average number) - Cars and trucks kills 75,000,000 birds - Transmission lines conventional power plants kills 174,000,000 birds - Buildings/ windows kills 689,000,000 birds - Fossil fuel power plants kills 14,000,000 birds - Hunting kills 110,000,000 birds - Pesticide use kills 72,000,000 birds - Agriculture kills 67,000,000 birds - Communication towers kills 28,000,000 birds - Oilfield oil waste and wastewater pits kills 750,000 birds - Domestic and feral cats kills 1,800,000,000 Summarizing the above common causes for birds dying we arrive at +3,000,000,000 and wind turbines 330,000 killed birds (0.0108%).

[@aslanbayramuqlany6189]

Frups considering the quantity of wind turbines in proportion to everything else you mentioned, from your statistics I only concluded that wind turbines are dangerous to birds.

[@Frups12345678]

@@aslanbayramuqlany6189 For every GWh produced in fossil fuel power plants 5.18 birds die and for every GWh produced with wind turbines 0.27 birds die. So if all the fossil fuel power plants would be replaced with wind turbines, millions of more birds would be saved. Still it is a fact that around 330,000 birds are killed every year by wind turbines and it will increase, as the number of wind turbines increase, so it is important to find ways to decrease these numbers.

[@echothebm]

Fun fact, my father was part of managing a underwater bottom mounted watermill project. It was invented and made and tested in Northern Norway in a fjord called Kvalsund. Right outside Hammerfest, one of the most Northern Town in the world. It was sold to the Irish if I'm not mistaken.

[@echothebm]

The prototype is still there :)

[@diezgp]

Nice!

[@echothebm]

It was made in 2003.

[@roe2012]

This energy and geothermal energy is consistent and definitely future energy, to prioritize, more than solar and wind that cant produce energy 24 hours daily

[@AJ5]

As a nuclear engineer, it makes me happy to see that most comments are pro-nuclear energy.

[@tomrobertson3236]

Don't mind nuke It's the waste that's the no go. Problem is cost plus corporations saw i t as a cash cow Current power plants need to be decommissioned But will centralized powerful groups allow new tech to take their place? IMO fusion will be here before we see new nuke plants used

[@ssllhh100]

the problem of nukes is that its a one way street that keeps adding heat to earth, its better to tap into the steady stream of heat we already get from the sun than to add to that causing more heat on the surface ... if we calculate the total amount of heat generated by nuke tests and power plants we get all the added heat energy to the surface of the earth, this with the increased retention of heat due to greenhouse gases is accelerating the climate change, but no one seems to look at it this way, at least burning fuels we are burning stored energy, not decaying matter that is allready in limited supply, we can make oil from plants, we cant make heavy metals again

[@darkwolf1739]

@@ssllhh100 lol nuclear power is based on uranium not coal.

[@noahhastings6145]

@@ssllhh100 We can make heavy metals.

[@typingcat]

Eng AJ: Starting tomorrow, I'll be a nuclear technician. His friend: Good God!

[@fitzmode]

That "wasted energy" bit was purely mentioned for us, the vile swine of the comment section, to ponder and quote...

[@AleksandarStefanovic]

You know what really grinds my gears? When we discuss power generation in terms of energy (i.e. watt-hours) instead of power (watts). It unnecessarily adds time into the equation, resulting in numbers like "250 TWh/year" which is equal to about 28 GW, when hours are divided by years.

[@nomadMik]

This is one of my favourite channels, and this is my favourite video. I love how it addresses all of my concerns and sets realistic expectations, and yet maintains the excitement of the technology. Can't wait for the next vid.

[@DavidRice111]

YOU should get a life, mik!

[@alfford6438]

Real engineering-"Some systems even use the salinity difference between rivers and seas to produce electricity." That sounds interesting.

[@GeneralBlackNorway]

en.wikipedia.org/wiki/Osmotic_power www.power-technology.com/projects/statkraft-osmotic/

[@amarabidali5316]

Its actually really dumb, was offered to do it as a PhD but refused, its basically finding areas where rivers and seas meet but dont mix and then force them to mix with a membrane in the middle so the water level rises to get a pressure head. Instead of being thankful for the freshwater they wanna mix it with salt water. What annoyed me is that the project wanted to do this so with the electricity generated, sea water can be desalinated i.e. salinate fresh water to desalinate sea water.

[@codycast]

Amar Abidali wait. They wanted to force mix fresh water into salt water in order to generate electricity to be used to take salt out of water? Lol. No one saw the irony?

[@SkegAudio]

Not really

[@alfford6438]

@@amarabidali5316 That's ironic, but irony is fine if so much energy is produced that it leads to a net increase in fresh water. It would be analogous to a company investing money to make money, only in this case the currency is fresh water. Still, it sounds like we are not at that point yet, and may never be.

[@cargentiusg5289]

This was an idea my dad and I talked over, glad to see the subject approached

[@fredrikberghlindvall9876]

That is already an old and expensive technique that requires very fast moving tidal. There are another company called Minesto (minesto.com/) that has a proved innovated technique that unlocks very low tidal streams as well. They are "flying" kites and increases the flow up to x10 times the tidal stream. The calculated LCOE indicates that Minesto can be one of the most cheapest energy source in the future.

[@hellssurprise9338]

I've heard of them and seen their videos and oh my Deep Green is super clever and its patented which if successful is HUGE good news for The UK and surrounding area only issue i can think of that will hinder Deep Green is how can it stop Marine life crashing into it??? Its incredible though it can park and then adjust its route to change of currents? That's amazing UK should've ventured into Marine power ages ago P.S have a look at Marine Power Systems Subs Dual Sub Wave Sub Wind Sub very interesting indeed www.marinepowersystems.co.uk/ have a read matey

[@cyklonetidalenergy7141]

I highly doubt that any kite system will ever have low maintenance and high availability. Is there anything in operation yet? Our CyKlone turbines are specifically designed for low and moderate tidal streams. kzbin.info/www/bejne/pKLFh4eMgriGiq8

[@mattiasthorslundjonsson1929]

@@hellssurprise9338 About marine life: I doubt the kite system is entirely silent; after all, the turbine on the kite is turning pretty fast. So I'd expect the whales, dolphins and sea lions will keep a distance and not get struck. But that's an impact as well, of course.

[@savvasaam7644]

That's super cool how much research goes into making sure that it doesn't harm animals

[@NiffirgkcaJ]

When I was a kid, I imagined underwater turbines with wind turbines on the top, since air moves and the water also moves, it's quite fascinating to see this dream slowly being realized.

[@netherwolves3412]

That’s actually a pretty cool idea, I’m going to make a CAD of it 😆 (+ solar panels using up the unused space)

[@NiffirgkcaJ]

@@netherwolves3412 nice idea!

[@orlogskapten4161]

*sees lockheed martin* me: *chuckles* I'm in danger

[@darius2640]

8:50 thats a very fancy way to say 'I skimmed it'

[@kaya051285]

Like wind and solar power the price of these would fall as more and more are built. The three renewables combined together would work better than individually And I'd bet these like offshore wind farms would tend towards the 10-20MW mark further reducing their costs and improving their CFs

[@Aughs]

“Strangford Lough in Ireland” *Niiiice*

[@rhidiandavies1991]

@@carlnew2829 Are you trying to argue that Northern Ireland isn't part of the island of Ireland...? It's right there in the name... he didn't say "in the Republic of Ireland".

[@RealEngineering]

Technically correct. The best kind of correct. Why is pointing out Northern Ireland is part of the island of Ireland so triggering for the British? Maybe it's the same reason they keep calling Ireland part of the "British Isles". 21st century imperialism.

[@fatbap]

​@@carlnew2829 Sorry to be the one to burst your bubble, but the North of Ireland is not a part of Britain, seeing as how its not Scotland, or Wales, or England. So no, its not British by any stretch of the imagination.

[@allenliu4956]

​@@fatbap Sure, I mean it is called the United Kingdom of Great Britain and Northern Ireland because those are two different places, both of which are (or contain) kingdoms that are united into one kingdom. So you are 100% correct that it is not British but it is also kind of misleading to random internetizens to say it has nothing to do with Britain, given that it is in a United Kingdom alongside Britain (for now at least, God only knows what Brexit will bring for Northern Ireland).

[@iceyblack4906]

@@carlnew2829 Fuck off Brit, Ireland belongs to the Irish!

[@stefankuttenreich8668]

10:19 did that seal just slap some other seal to wake it up??

[@paulbedichek2679]

An expensive way to get energy, but I do really like the idea of these generators off of Miami where the Gulf Stream is strong and close two the US,it brings all the heat to UK and EU,if we just had 2 GW of turbines,and they produce steady unending power, we could lower the temp at the Notyh Pole and EU a few degrees, it would be worth it for that and the power would be a bonus. Advanced nuclear reactors will give cheaper power and where we want it but I'd like the chance to lower the temperature up North,and freeze the Russians.

[@SimonNZ6969]

Heh, sea side property values are already gonna get "adjusted."

[@nuthinnobody3357]

That’s why waterfront property has lost all its value recently...... wait, that didn’t happen. I wonder why

[@octaneblue6]

@@suserman7775 Are you implying climate change is not going to affect real estate values along the coast? lmfao

[@castlehill6717]

octaneblue6 Not in your lifetime

[@octaneblue6]

@@castlehill6717 Are you that stupid? Every shred of scientific literature says otherwise, including new literature, which is increasingly stating that it is worse than we thought. www.washingtonpost.com/climate-environment/2019/12/10/greenland-ice-losses-have-septupled-are-pace-sea-level-worst-case-scenario-scientists-say/?fbclid=IwAR1EMaR2GR4urydB7qKID_arQ1raYdKKWaCxJQ1GiM6k-VSkrumOfOH2BT8

[@swoastudios]

This is actually so cool! I really hope we can save this amazing planet with this product

[@MarshallMathersthe7th]

Planet doesn't need saving, humanity does although i am not sure if we should.

[@stevenlonien7857]

My lonien windmill image says it all. No betz limit loss between blades. Increasing wind values 47%.in both directions.Einstine verses betz

[@NochSoEinKaddiFan]

The idea seems plausible and I have huge respect for the company being so responsible and maticulous in their research and planning. I wish more care was taken before bringing such products to market.

[@patrick-is-so-cool]

Imagine seeing seals getting yeeted out if the water by an under water turbine

[@42thgamer80]

Love this video! All your energy type videos are really awesome!

[@najrenchelf2751]

We just talked about this in our lectures... They’re also doing this in the Netherlands in the Delta Works!

[@XxMaKrxX1]

Naj Renchelf won’t this kill fish and ocean life?

[@domestik834]

No they don't.

[@davidvreugdenhil4557]

I live in the Netherlands what is the plan can you tell me

[@domestik834]

@@davidvreugdenhil4557 to protect the country from floods. Not to harvest Energy.

[@cyklonetidalenergy7141]

you might be interested in this then kzbin.info/www/bejne/pKLFh4eMgriGiq8. Can you link me up to your professor? We are looking for partners in The Netherlands to strengthen our consortium.

[@directorstu]

I have been citing tidal power for years. The UK has some of the highest tidal ranges in the world. It has less of a visible impact and is much more reliable than wind. With heavy investment in wind I just don't understand why tidal power has not been more favourably received

[@robbert-janmerk6783]

Cost. It's just much more expensive than wind or solar and those two are dropping in cost very fast as well.

[@directorstu]

@@robbert-janmerk6783 All true. But the absolute reliability of the tide offsets the small additional cost (in my humble opinion)

[@davydovua]

2:47 townscape looks familiar... Where is it? Oh wait. That's my home there xD

[@moisesaldersflugel2879]

7:32 an eye sore? I would be amazed waking up to that everyday.

[@HetThakkar809]

Donald Trump sued Scotland for an offshore wind farm near one of his golf courses saying they are an eyesore and lowering the value of his property. Needless to say he lost. Now he doesn't want to pay the legal fees amp-theguardian-com.cdn.ampproject.org/v/s/amp.theguardian.com/us-news/2019/oct/08/trump-organization-rejects-legal-bill-after-losing-windfarm-court-battle?amp_js_v=a2&amp_gsa=1&usqp=mq331AQCKAE%3D#aoh=15757981363465&referrer=https%3A%2F%2Fwww.google.com&amp_tf=From%20%251%24s&ampshare=https%3A%2F%2Fwww.theguardian.com%2Fus-news%2F2019%2Foct%2F08%2Ftrump-organization-rejects-legal-bill-after-losing-windfarm-court-battle

[@midnight8341]

I know, right? I also don't get why people don't like wind turbines, tbh. The big, new ones the built at my parents place are really slick looking and I like them. More than the coal plant I have to drive by on my way to my parents-in-law, anyways...

[@mohamedameri360]

Let me put it this way, the US and Saudi Arabia wouldn’t like such change. The whole dollar currency is linked with oil.

[@yoman5136]

Mohamed Ameri THE WHOLE OF CIVILIZATION IS BASED ON OIL !

[@fredrick1176]

Luckily the US is an insane energy powerhouse. If we can profit off of these then it’ll be used

[@mohamedameri360]

@@fredrick1176 If we find a new power storage technology. It's going to start a new era filled with possibilities.

[@brucea9871]

Informative video. You did your research and know what you are talking about. You even got the astronomy right (the difference between spring and neap tides and the reason for this difference). I find all too often people are ignorant of astronomy and the effects it has on Earth (e.g. many people think the reason for the seasons is Earth is closer to the sun in summer but Earth is actually closer to the sun in January; the seasons are caused by the tilt of Earth's rotation axis).

[@MalloonTarka]

All this water-based energy is just waiting to be... tapped. YEAH!

[@tommclean9208]

I did a module in ocean energy at University, there is a lot of energy in tides and even better, predictable energy

[@colinsmith1495]

Now I'm wondering what it would take for us to basically manufacture our own tidal facility. How long does a continuous body of water have to be to see tidal effects?

[@tommclean9208]

Colin Smith there are lots of natural places that are perfect for tidal energy, like nova scotia in Canada, or the spot mentioned in the video at scotland. But theres more to engineering turbines than just maximise energy output , its the economics of the design. A site may have very strong tides but a poor seabed which requires stronger foundations, more force on the turbine increasing manufacturing costs, poor access to shore power, needs of the local area such as ships and wildlife and much much more

[@colinsmith1495]

@@tommclean9208 Not only that, there are a LOT of places on Earth where there simply aren't bodies of water with viable tides. That's why I'm wondering out making our own situations. How far apart would two water reservoirs need to be? How large would they need to be? What kind of aquaducts would need to connect them to generate tidal forces worth harvesting? Could that be underground, not above?

[@tommclean9208]

Colin Smith we didnt really study anything to that effect. If i had to guess, i would say it is not possible as the tides are created due to gravity which is a weak force, so you would need an ocean sized body of water to create a strong enough tide. Maybe we can create stronger tides in certain regions through modification of the landscape, but that would probably be very expensive. However, we can make tidal barrages which fill up with water on a rising tide and then when the tide falls the water goes through a turbine generating energy. One project in the uk, the severn estuary barrage, could generate 5% of the uk’s energy needs.

[@SpyralHax]

Scientists and engineers: *discover multiple methods of natural, green energy. Fossil fuel companies: I'm gonna stop you right there. *handing giant bags of cash to government officials*

[@scerb100]

@Vlad the guru better off having a diverse market of non fossil fuel energy (which includes but not exclusively nuclear)

[@weldonyoung1013]

Thanks for the information on a little know, hardly funded, and barely depolyed renewable energy source.

[@MehmetHTopal]

I am so mad that nobody caught that personal massage at 13:26

[@tomasviane3844]

Spoiler alert! "Here's a gift to make you less of a dipshit"

[@simonkennedy1815]

If you had a buoy that measured let’s say 3 metres in height with an internal mechanism travel of 2 metres that would cover most swell heights. A spring loaded cable drum to spool out and retract the anchor cable as the buoy travels. The dynamo, after gearing up can be hooked straight on to the drum essentially. Super smooth exterior paint on the outside and corrosion resistant cable and it’d be a real goer. For sure.

[@mr.personhumanson6871]

All this talk about tide is making me hungry

[@MrMikey1981]

13:24 The Wendover troll in the ad read was brilliant... (pun fully intended)

[@theGoldenDiaper]

Will be interesting to see how oscillating water columns progress into the future also! A sea of potential energy just sitting there, literally!

[@matthewgodkin3714]

There's also a tidal station in Nova Scotia, Canada

[@HerbaMachina]

Yeah I'm really surprised he didn't mention it considering The Bay of Fundy has the highest tides in the world and is perfect for this technology

[@realname2404]

A wind turbine and an A/C unit walk into a bar The wind turbine asks: "Hey man! How's your job going?" A/C unit: "ehh, it's cool but I'm not a huge fan."

[@vengefulavenger1510]

Boo

[@77Avadon77]

Hahah. Total Dad joke

[@BrianThorstad]

Nice technology, great research and presentation. Thank you.

[@HisShadow]

Energy problem? *Thorium and 4th gen nuclear reactor laugh*

[@CheekiScrubb]

imagine that and russias floating mobile reactor project

[@Dysputant]

Initial costs. Going nuclear is nice , but you need horrid amount of cash, and public support to build it.

[@Volvith]

Chernobyl series re-fueled the fear of nuclear power. People don't know the difference between nuclear power then and now.

[@Volvith]

@@Dysputant So? How much do you think the solar effort costs world-wide? Fuck the costs, we can make this work.

[@laur-unstagenameactuallyca1587]

@@Volvith solar is cheaper than nuclear though dude

[@wildonemeister]

Next we "want" a video about the "wave snake" and how efficient it actually is!

[@_Abjuranax_]

It looks like they would work, but covering large areas may be problematic for the eco-system.

[@lagimmediafiles6478]

I love Engineering I Love Science and Technology I Love this Channel...

[@romantrigubov80]

2:48 I definitely know this cityscape. Hello from Kiev!

[@Jack-cp3qb]

Did a project on this stuff. Really promising.

[@johnshilling2221]

"Did a project...." Did your project include building a full scale system that actually worked? Oh! It was only on paper? Never mind.

[@zekkai1005]

@@johnshilling2221 uhh...

[@princecuddle]

I can see those turbines be very useful in the river passing on the east side of manhattan in New York. During high tide the water delver there can be so strong that some weaker boats might not be able to go through there safely.

[@cyklonetidalenergy7141]

already looking into sites. Contacts to authorities always welcome. kzbin.info/www/bejne/pKLFh4eMgriGiq8

[@pompmag]

Tidal energy = terrifying consequences. I studied tidal energy at university in the early 2000s. It has obvious benefits that are discussed in the video But has massive potential consequences. The environmental issues are a side issue. The real problem is that the movement of the tides an orbit of the Moon are fundamentally linked as said at the start of the video, but what is not said is that the tides and lunar orbit are a balanced system in which the movement of the Moon puts energy into the movement of the tides, and then the movement of the tides themselves puts energy back into the orbit of the Moon. Obviously if you remove energy from an otherwise balanced system you unbalance that system and thus major generation of electricity through tidal power will fundamentally change the tides, and the orbit of the Moon. In particular even relatively minor energy extraction (a small percentage of the world's annual electricity use) from the tides is likely to impact the Moon's orbit to such an extent that the orbit will stop being elliptical and instead become a spiral. There are complicated factors I can no longer recall which determine if that spiral orbit would move the Moon outward or inward but both are catastrophic for all life on Earth. Outward would lead to the atmosphere ultimately being pulled into space, so no more breathing, whilst inwards would lead to a collision of such force that the asteroid that ended the dinosaurs would be a drop in the ocean by comparison. Tidal energy is superficially attractive in terms of being able to supply a constant flow of electricity for a while, but the long term consequences of doing it are even worse than climate change (which frankly terrifies me enough). It seems irresponsible to do a factual video about all the benefits but then only mention the small (and manageable) problems, ignoring the big picture problems, almost as though many of the facts you researched come straight from the tidal industry lobbyists and industry...

[@Edwardthefamily]

wow

[@samuelyoung2671]

Pomp Mag Hard to believe humans could possibly remove that much energy from tides... but I never even considered it a possibility so that was interesting.

[@ytpanda398]

This is literal insanity. A balanced system the solar system is not, my friend. The moon yes has a gravitational influence on the earth and the earth has one on the moon, but the miniscule changing of tides or even a large one would do bugger all to orbits. The mass remains the same, the motion of tides within the body here would be irrelevant. Also, the moon would need to move a colossal distance to even impact earth's atmosphere or tides significantly. At the natural rate at which it moves away slightly, tides wouldn't even be affected for a VERY long time.

[@computerolegy2336]

@@ytpanda398 I do not believe he understands the miniscule scale of water there is compared to Earths mass. The Ocean represents less than 1% of Eaeth's entire mass, and is like the skin of an apple.

[@SQ8warrior]

I studied it as well as part of ocean engineering degree... you're entire ramble was about on par with flat earth bro science. Not one scrap of reality to it at all. This is right up there with "dont build skyscrapers because they will serve as artificial mountains throwing off the delicate center of gravity of the earth and induce axis wobble" ....sounds scientific, but the scale of impact is so unbelievably minimal it's not even close to relevant

[@STNG17-]

10:20 "Man wtf!?!?"

[@robertarcher5270]

The US actually has various tidal energy demonstrations in various stages of development. The first one was conceived in 2008 when I was in college.

[@josoapification]

I saw the turbine being sailed out of Belfast lough on a jack up ship and I was in that tidal barrage dam in France nearly forty years ago what a coincidence!

[@donaldboughton8686]

The tidal barrage mines the rotational energy of the planet. One knows when one is over doing it as the length of the day starts to grow. What's the rule? Scrap all tidal barrages when the length of the day reaches 25 hours?

[@nickwardog8586]

20 years ago in high school i got made fun of for saying the same thing.

[@sandesh9240]

In 1980 I asked an IIT graduate about this and he said it is not possible... I believe that 'everything that moves must have some form of Energy'

[@stevenlonien7857]

Yes betz.is.bogus mine open is.closing opposite halfs there opening opposite flat opposing half simontanisly our pure kinetic tindle energy and.reverses with tide emence energy capable of gearing to light speeds to spare in momentum kinetic energy.vertically or horizontaly hoover dams full on blocking and releasing simontanisly mirroring magneticaly naturally.wow if you belive Einstine relativity kinetics this proves fact.even learning curve . Slow but sure now what ?