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Nice work

I imagine the incredible tidal energy at San Francisco’s Golden Gate, but also imagine the incredible environmental catastrophe. Did Singapore build dams across their ocean outlets to eventually convert what was salt water into fresh water from their huge amount of rain that falls on land? If San Francisco Bay was fresh, they wouldn’t have the drought problem. Huge channels with gates would have to be built for ships and sailboats to pass in and out of the narrow Golden Gate.

Very interesting 👍 Dont know if I missed it, could you build this design on a different site for cheaper from scratch? I understand the retrofit thing, but,,,,? I hear lots of talk of about how old office buildings are too expensive to convert to apartments, but here in Ontario Canada, and many places in the world are seeing a housing crisis. Cheers

I'm always passionate about this technology, however, in my mind a question is always asked. if the flywheel reached its full rpm then thats it, it might take a few minutes do that? after that how do you store the energy?

Imagine storing energy in 500 m radius flywheel?

No it is a steaming pile of shit. It has been used in a large scale in the past few years and its a joke it works but its a militance hog and the time to pull the vacuum to service it takes all day. Just stick to LiFePO4

The bearings are still going to need to be replaced and with a vacuum seal, that won't be cheap.

just one thing, torus doesnt offer the flywheels for homeowners, only businesses.

flywheel storage might be good in a zero gravity and vacum environment.. like a space station

Flywheel's are good at storing mechanical motion. They work well in engines, ensuring there is enough force for compression. This is their best scenario.

Nah, invest in sand heat storage technology. It’s the most sound and cheapest.

coulda done without having to look at your mug...

Even with how dangerous lithium ion batteries are, flywheel storage (with the exception of maybe very large, slow-spinning flywheels) is much more dangerous. Our physics textbook in high school mentioned a physics experiment where some scientists were spinning a trashcan-sized chunk of steel to high rpms, and eventually the steel itself failed, the mass ripped apart, and the chunks almost vanished. They later found that one of them burrowed through the entire building and finally exited through a side door, ripping the door off the hinges and ejecting it into the adjacent parking lot. Another chunk hit the foundation, making the entire multistory building shift a centimeter off of its foundation. Heavy, spinning stuff is no joke. If the bearings wear out, or the material that's spinning ever experiences brittle failure due to hard-to-detect internal stresses or manufacturing defects, whatever building it's housed in is toast. With lithium batteries at least you can have fire suppression systems, house the system outside where it can burn off freely, etc. With flywheel storage, the failure is instant and violent, like the mythbusters cannonball incident. The pieces will bounce off of hills, rip through cars as if they're made of paper, etc.

I want to build one myself.

5:50 For that one time purchase. It depends on how often you would swap the battery but there is that to take into account, also round trip efficiency conversion in storage time spans below the self discharge issue (so sub 2 days or so, like overnight HVAC etc). If I remember correctly FES is more efficient than batteries in this regard? Also not measurable in USD per se, but at least for me, the recyclability is a MAJOR selling point.

Nice video and script. For small correction. We don't have to transform to "renewable". We need to transform to low or no carbon world. Saying that we have to transform to renewables discards achievements of nuclear power(already successfully decarbonised some countries), geothermal, geological hydrogen etc. We also can actually get rid of the CO2 from atmosphere- enhanced weathering with silicate minerals could do it and give us more time for energy transition.

Flywheels sounds closer to capacitors then batteries

Eek. Yeah, cost has to come way down. A quick google turns up a cost of $8k to $16k for a typical home solar battery bank, before rebates, so the cost would need halved, and both of them would still be expensive. However, I believe that once this unit gets manufactured in greater volume, then economies of scale would most likely drop that price radically. I think the future of this technology is in other countries, where they don't have lithium deposits and want something else bad enough to pay for it.

4:05 uh, what? A flywheel is a dumb piece of weight, it needs to be heavy and cheap. Why on earth would you make one out of something that's lightweight AND expensive?

I rebuilt my live-aboard sailboat with a NiFe battery bank, works just fine for 130 years or so. Boat living is the future, my yearly cost of living is down to $3500 including everything. I've been playing with the thought of flywheel on a sailboat, but more for the gyroscopic effect and as shifting ballast, both for keeping the boat upright to accept more sail than normal. And thus getting more speed.

Look at all these lithium-ion batteries... proceedes to show no li-ion batteries. 😂

this type of storage is too wacky.

a 2 stroke diesel powered generator sounds better than whatever this crap is

A flywheel doesn't have that much energy in it. 10kWh FLywheel would be humongous! Few tons at least and a few meters in diameter.

That low cycling number, I don't see any benefit. It would be perfect for grid stabilization. Charging and discharging the storage several hundred times a day

Odd, no mention of the largest innovation with TeraLoop

Flywheels are great for applications with a lot of space as they’re super large and cost too much.

Please, no music over voice. It is unnecessary, annoying and distracting. I haven't subscribed because of this, which is a pity because this video content is interesting and unusual.

What about spaceships.

And this is still and always will be simple bullshit.

why not make a big stupid pile of sand elevated from a point where something collects the energy when it falls

Flywheel storage is absurd. It takes energy just to keep them spinning, and as a store for energy, why? I can see for short duration, high energy or short duration burst energy production but beyond that, it is absurd. It is basic physics; you either need a super heavy mass, or have that thing spinning at an absurd speed, or both And how is changing an EV faster than just going off the grid or a generator? You have to wait to spin the flywheel up, then have to wait to discharge it; the time it takes to spin it up can be spent charging the EV Being able to be used in cold environments is a benefit Also, a spinning wheel is 10 times the cost of lithium batterie? Hilarious.

Moving parts for energy storage is dumb.

So you want to go net zero, you mine to build solar panels and wind turbines with 15 year life spans, batteries with 10 year life cycles and then now you want to build flywheels when all of these are in a conventional power generator with full economies of scale. How any of this is green really befuddles the mind.

I'm wondering how safe these are. How would these hold up in say, an earthquake? Wouldn't want a fast-spinning 500kg+ steel beyblade to come loose and wreck havoc in my home lol

I think you should have a little more energy in your voice and some background music. I think that would elevate your presentation quite a bit. Also, maybe the shadows cast by your light aren't the most clear. You might want to get some more white spotlights.

I, just a guy on the internet, once did the math. And anyway flywheel storage aint where it is at fam. pumped hydro is barely where it is at, and it is so far above a flywheel in price to performance and scaleablility. if you can't beat pumping water then why even try.

This is just more useless technology that will never take off and be gone within 10 years. There’s no need to replace something that already works. Gensets have been around for decades and they do the same thing but cheaper and better.

Storing energy in something moving is batshit crazy. What makes sense is storing it in something still... e.g. lifting something really heavy high in the sky, and slowly lowering it to recover the energy. The obvious case is water in a dam, but any kind of heavy weight works.

Its just another Scam. No hard info on capacity of the Flywheel... ;)

Flies don't have wheels, they have legs and wings.

A real-life perpetual motion machine!

Price is too high, they aren't a standalone solution and they self discharge quickly. Sounds like this tech is never going to be mainstream.

Great video, well delivered. Of course we should because it's the lesser of two evils.

Seems like an interesting device for applications using power over night. I.e a 24/7 factory, using solar panels during the day to both run the factory and charge their wheels, then run the factory overnight from the wheels Even for individual homes, a house could be completely independent (theoretically) with a dozen or two decent solar panels and a flywheel to keep everything on overnight (if not for that scary intro price)

'we would have already done it by now' and 'if it was so easy, why has it not been done before?' are literally my two most disliked sentences in any language. The question alone precludes that human from having certain understandings. such as the flow of time, the standing on the backs of giants and in some cases, the universe itself simply was not ready to issue the idea (whole can of worms about double slit and an aware universe, beyond the scope of this rant.) we have used co2 as r744 for longer than many of us have been alive and the brainiacs of the world still do not even begin to comprehend that that specific line of technology leads to a Dyson sphere. Flywheels are cool. with a mind not bound by time, one can see how in the future, we can use black holes themselves as such...

The thing i always come back to with flywheels is how we had buses powered by flywheels MORE THAN 50 YEARS AGO that were perfectly usable, at this point we must surely have the technology to even run some small train lines with flywheels!

I don’t understand how it isn’t just a huge capacitor. And it takes energy to “charge” it up to operating speed. It can’t produce more than it took to spin it up.

Seems like a much better commercial storage application than consumer/domestic. Its value is more optimized for the grid than for individual energy independence.

Nah man, i do contract work for a lot of data centers and every one that has installed a flywheel hate the stupid things within 2 years. With all the specialized maintenance required they have twice the running cost for 1/20th the storage capacity.