Do you think any of these will catch on? And any other tidal technologies that I should have covered? And thanks again to Audible for sponsoring this video. To try Audible for free for 30 days visit audible.com/undecided or text undecided to 500 500. And if you liked this video, be sure to check out “Is Geothermal Heating and Cooling Worth the Cost? Heat Pumps Explained” kzfaq.info/get/bejne/hq9kaNyGzbu7l58.html

Isn't it a crazy idea, that 'Tidal Power' is technically 'Moon Power' 😁

Just wanted to say I've been watching informative content on YT for years now and every video you put out is absolutely top notch. This channel is a gold standard for educational, thought-provoking, and informative content. Please keep going above and beyond.

I must admit that I was rather skeptical when I clicked on this video due to my own biases from what I've heard, but I'm pleasantly surprised that nearly every method you've presented have real world working models that have date from the field to back up their claims.

I know one of the engineers at Orbital, they're quite proud of their system.

Biggest issues that I can see going forward with tidal systems like these are long term maintenance (barnacles, molluscs and basically sea slime), getting the power to shore in the case of deep water installations (the kite) and of course permits/insurance and such. A potentially great location for a system like the VAWT design might be between some of the bridge piers of bridges that cross tidal inlets or large rivers. You couldn't block ALL of the piers, have to leave passage for boats, but some power generated is better than none!

I really enjoy how positive and optimistic your videos are. Thank you, and keep up the amazing work!

Saw this on "Just have a think" last week, pretty cool stuff.

I'm from the UK and, while I might live in Coventry, about as far away from the sea as you get on this island, I'm super-excited for tidal and wave power. Tidal power might be the UK's answer to green baseload, and marine energy in general might be our answer to the winter supply/demand problem. We get a lot of wind, but wind's pretty variable and we don't have the geography for conventional or pumped hydro at the scales we need. I am extremely excited to see what comes. ...also, you forgot about Simec Atlantis and their Meygen project. If and when it finishes building out, it'll be 400MW. It's the most conservative-looking tidal turbine I've seen - it looks like a wind turbine, just in the water...

Cool! I was born in the Faroe Islands (don’t live there anymore) and have been following their development of different green strategies for some time now. They plan all land power production to come from renewables by 2030.

All the numbers look to be new installation. What will they look like after exposure to the ocean environment, attached sea life, collisions with sea life, collisions with ocean pollution, etc?

I just recently discovered your channel, of course I subbed. Your content is totally different from other science channels, you seem to be more of a postive and optimistic science channel and I love it. cheers to more videos in the future!

Love the amount of research you put into your videos! Thanks!

As I often say, "No silver bullet. Only silver buckshot." With that in mind, we should look to a diversified suite of solutions harnessing the immense power of tidal currents. As a former submariner, the brightest solution of the bunch so far is Orbital's design. The major downfall of undersea systems is maintenance. Orbital addresses this problem by designing retractable turbines that facilitate work on the surface. Additionally, the entire rig can be easily and affordably towed to port for more extensive maintenance or repairs. The undulating membrane looks interesting. However, I worry about all the moving parts. The design just looks finicky to me. And, while I'd love to see the undersea kite, its wind-harnessing cousin, Makani, failed spectacularly.

Good video. Just an FYI, we pronounce Holyhead in Wales as Holly(the tree) head.

Love your videos... very pleasing to see all the possibilities! One thing worth checking out is the Perth Wave Energy Project, or PWEP, which uses submerged floats at 25m depth to generate pressurised seawater, which is pumped back to shore. This is used to generate electricity AND can desalinate water, as the pressures involved are ideal for reverse osmosis desalination.

Great video Matt. I have not had the chance to look into tidal power. Very interesting. It looks like it has a lot of potential.

The membrane power plant looks amazing. Please keep us up to date on it

great videos mate, keep it up!

My grandfather invented and patented Octopus Systems Inc. in 1984 (no. 4,480,966) - I have his business plan and patent info. It was a series of connected units using wave energy that was self sustaining and collapsed down during storms. Unfortunately he developed dementia before he could develop the prototype. He also invented stamp cancelation machine for USPS and everyone's favorite, the tater tot machine.

This is exciting! Thank you for making this.

thanks for shedding a light on these renewable technologies. It makes me feel a little less pessimistic about the future

The Nova scotia tidal power plant on the Annapolis River closed this past year. It was built as an experimental plant, and was operational longer than planned. It required repairs that was deemed not cost effective.

One of your best videos Matt. There are a bunch of great ones you make. Thank you.

I am always excited to see a new video uploaded...make more of these please!

The kite one seems like it would attract attention from sea life, I can imagine something being antagonized by it.

I like the kite scheme. Make sure to provide enough clearance to avoid collision. Can be quickly turned into challenging task to maximize energy harnessing in an array format.

Great video, really interesting the membrane system. Thanks

Love your videos! Thanks for the great content 👊

And... that membrane idea will have minimal harmful impact on marine life! Although it's probably going to have its own issues with encrustation!!

Let’s all say it together… Galvanic corrosion👏

Thanks for sharing. Lots of interesting ideas. I have loved the idea of tidal power for years. The best idea I had heard in a long time was the underwater sea carpets. I’m guessing that the 5 mw flexing one may be a maturing of that. They had said the technology was gaining interest based on its potential to protect harbors from erosion alone with energy being an additional benefit. The only problem I see is the incredible potential for high cost maintenance. The most maintenance free option I’ve heard of was the proposal of giant under water concrete venturi’s to be built under the Golden Gate Bridge. They were to be bidirectional and would be used to suck air from shore based vacuum powered generators. No moving parts under water. They expected to be able at minimum to produce 1000MW of power. My thought was imagine the foam in the water. 😂

Wow Matt. Such a classy way of going about everything.

this might be a solution for Puerto Rico's ongoing power problems.

This would be perfect for coastal nations in Africa! Thanks for sharing!

I remember reading about tidal power generation in either Popular Mechanics or Popular Science, I had a subscription to both at a young age. This idea has stuck with me since and I'm glad to see some actual movement on the idea. Great video thanks.

Good Job Matt!! Please keep going

such great editing!!!!HOW😶👏👏👏🙌

Project Hail Mary is best "audiobook" I have ever listened to. A lot of credit goes to the narrator, Ray Porter.

Great video Matt.

Great info Matt, thanks. 👍🏻

Hail Mary is a fantastic book!!! Rocky

Membrane sounds really good, also safe for marine life full 24/7 no interference power

Nice! Quite interesting topic, which does not get enough attention in mass media! I glad to hear that they worked on that particular project for 15 years! It means there is something worth looking at!

Yes! Keep up the good work. I love this train of thought. Not all correct but thinking in the right direction...imo

I love your other channel too! Practical Engineering. How do you keep up with 2 channels. amazing

Except for the membrane type, none of those designs seem to solve the harming marine life problem.

Thanks for the book suggestion, downloading now :)

I am impressed with the progress of the different tech'. Thanks for the video.

I can't repeat it often enough, humanity and the world will need vast amounts of clean, sustainable, emission-free and cheap energy in the future. Therefore, these tidal power plants also need to be supported to become a reality on a large scale.

8:36 -- The "Deep Green" kite is fascinating because they chose to have the kite actively controlled by computer to keep a figure-8 pattern. There are several known wing-shapes which will automatically destabilize aircraft at all times (often used by fighter jets). If one of those unstable wing-shapes had been used, the water kite would be be continuously unstable (moving) through the water, presumably generating the same amount of electricity but more efficiently since the figure-8 control mechanism could be abandoned.

Finally my request is catered..! Thank you so much bro! It's an amazing content

Good work Matt

I do have solar and love it but I have always thought that tidal or sea power had the greatest potential for 24\7 power generation. I'm just glad it's getting more traction.

All I can imagine are the chopped up marine life in big piles below most of these blades. The flippy flappy thing might be less damaging

duude, love your videos, thanks a lot

incredible video editing as always with the music slows at starting.

Thanks for Great Video Matt, it seems to be a lot of questions about a lot of things, and I can answer some of them, regarding Minesto Kites. First of Deep Green is already a finished and launched product. Funded by EU (Most EU-funded company all cathagories). So it’s not a question, does it work or not it ”bloody well works” to quote COO. Now when we have clerified that it comes questions about wildlife (i’m glad that so many suddenly is so enviromentally friendly). Anyway wildlife is something Minesto takes very seriously, there are three Universities following the project and make studies (like eveyone working in the seaenergy business). And Minesto have a kite in North Ireland for 8 yers i very wildlifeintense enviroment and had zero incidents. For fishes there are absolutly no problems because they are faster than the kite. Whales just seams to avoid it. There is a buildt in emergency stop if comes like cluster if stressed whales, the propeller stops, and the kite stops. So far no incidents in Wales, Northern Ireland and neither in Faroe Islands. Regarding pollution i the sea I think this is question that are not that big, it will happen sooner or later but is very quickfix to change the kite. Shut it of, put in floating mode and bring another kite and change it. In Faroe Island that operation is done in less than an hour. Harvesting energy from from OceanCurrent will slow down the currents and bring us back to Ice age?, To you who made that comment, go back school. The submarine Kites are storm and Hurricane safe. Nothing happens down in tje stream…actually it will continue producing power as nothing happen. About Corrosion:The kite is so deep in to the ocean so the enviroment is not that bad. The water is not that aggressiv. The surfacematerial is made of material that dont rust. Some comments of the other Orbital O2 (2MW): this coloss weigh 300000kg/MW (Minesto 30times less). That and the fact its in the surface makes it both expensive, not so nice to see from coast, no traffic allowed (in Minesto case all trafic is allowed). So I have a hard time to see this in larger numbers. It might be a Nishmarket for this. The big difference between Vertical submerged tidalpowerplants and Minesto is that because Minsto sweep a large area it is so much more efficent. Up 6,8,10 times plus that the market for lowflow streams are extreamly larger.

"Can underwater turbines work?" Yes...all hydro-electric turbines work under water. And what's more, if they were above water, they would be useless.

Love your videos ❤️ thanks for what you do.

Brilliant. The ideas presented are great and I like them all. But what is BRILLIANT, is your quality of programming Sir. Great material, presented in an engaging and extremely professional manner and - each - one - keeps - getting - better! Kudos.

I always thought that the waves are strongest only at the surface and the currents are negligible close to the floor.

This issue isn’t “can it work” as it clearly works. The real issue is will it catch on, get funded and insured and adopted by utility companies and municipalities

That's good stuff!

I love that you give me hope!

Would like to hear about any of these technologies that have little to no maintenance requirements, as that is the real problem with tidal energy. Thanks!

I see no great future for tidal power.... in Switzerland where I live :)

Very informative video .. thanks Matt

Great video. Perhaps you can compile a future video on floating paddle wheel turbines for river communities.

Unlike wind and solar power generation tidal and wave power are capable of providing base-level generation just the same as Hydro and at a much higher level of efficiency! Initial capital costs and servicing may be higher but over the life of the equipment power generation should be lower per kilowatt!

How are tidal generators' performance and financial viability impacted by the sea life that plagues ships and submarines - barnacles, seaweed, and molluscs?

Would be interesting to see if they ever do anything about all the Geothermal energy that's just laying around.

I live in New Brunswick and was very excited that my region was mentioned. I've known that there have been tidal power projects being developed for many years. I hope it becomes a viable power generation method as we move towards sustainable and non-carbon-emitting generation.

Check out SeaTwirl and their vertical-axis wind turbines!

That membrane was way too many moving parts, crustaceans will attach to it and render it unusable.

The ribbon idea is really cool. With meta materials and molecular engineering, it could be made into one single sheet, and used for wind power.

Yes I believe that as cost goes down. The demand is there now. I ran across your channel yesterday. I can not thank you enough for your channel. I saw the video on solar panels as roofing panels. I live in Phoenix I am on my 3rd home. Solar power to me is the only way to go. Looking forward to the future to see the newest version of solar panels. Thank you again for the information and showing the newest product on the market.

They need to keep cleaning the ocean, that's for dang sure. GO 4OCEAN, ETC

sounds great. proceed with the research.

Really interesting idea. You did an excellent job in your research and bringing the most update information to the market that most of viewers do not know about. It would be interesting if private consumers convert swimming pools into some type of wave source to power individual homes or even use the Mississippi River for a source. Lots of ideas to pursue but like you said complex technologies.

Luxury or no luxury always be proud of your brand and try working to improve. I love luxurious lifestyles. All thanks to crypto I just got my first Lamborghini 💝. My advice to y'all invest in cryptocurrency or gold.

I also think that for small individual or isolated areas small floating "Run of river" water wheels or vortex style turbines are an excellent idea! The water wheel could be used where there is a high volume and slow flow, where the vortex is for high flow low volume!

yes, I think these will catch on and would be an obvious skill transition for those who have been working on or around offshore oil rigs. I have read "Project Hail Mary" three times since I got it on ebook format in may, I agree with you I find Mr. Weir's books entertaining, hopeful and inspirational. Robert Llewellyn's Fully Charged did a couple of shows on Orkney and the different tidal generation projects that were being researched. Great work, really enjoy your channel.

You have such a wonderful channel 👏👏👏

Great idea

ooh, thanks so much for the recommendation for andy weir's book, I was waiting for him to publish something new

Thumbs up to the kite one. Very cool.

Ooh this looks interesting

you should do a video on wave power too as this has great potential as well

Thanks Matt.

Thanks for always covering interesting tech. I'm wondering on the practical applications of tethering undulating membranes behind sail boats to generate a little extra electrical power is practical or would that just create too much drag?

There was one form of energy that i saw a few years ago, Effectively it was like an area of land with a cover that was supported about six foot at the edges that slowly increased toward the centre. At the centre there was what looked like a cooling tower. This was in a country like the U.K. The air under thd cover heated up and because of the shape of the cover quickly made its way to the cooling tower but in the tower was a turbine. It did not rely on wind and only required a small increase in temperature to operate the turbine. It was first thought that this would be using farmland that because of the structure would stop growth of plants, however this was not the case in fact plants grew very well under it, by the way rain could go through the covering.It was also thought that it would only work during the day but it turned out that the heat stored in the ground was given up at night so there was a constant flow of air. It worked very well but i never heard about it again.

This is great

Great 👍

Ayyye I love the nod to “Project Hail Mary” listened to it a few months ago. Great book.

Amazing...

There is an under water system from Australia called Ceto, I guess it's not quite 'tidal' but works on below surface sea movement, which is constant unlike tidal which has moments of no motion between rising and falling tides. Ceto 5 was originally used to pump water ashore under high pressure to turn a turbine, with the advantage of being able to be switched to a reverse osmosis membrane in times of low electricity need to create fresh water. The later version Ceto 6 transforms sea movement directly to electrical energy.

nice

Delivery, wording, and production style of this channel closely matches the formats of Practical Engineering and Answers With Joe

Thank you!