Introducing AirBattery energy storage 

Beautiful may this idea long live

Worth a 'go' for sure. Concern that finding leaks underground could undo the project. Better above ground tanks.

I've been following this idea for quite a few years and really wanted to see some real world testing of this. However, I can't help but being worried about the many valves and pipe joints in the system to be under constant cyclic pressure. It is safer to have it buried underground so when a valve bursts, the jet stream won't poke a big hole in someone, but it also is more difficult to perform maintenance. Unfortunately, currently the most effective way to do hydroelectric energy storage is still pumping water to a very tall place.

The principle of this technology is about the same as that of the hydraulic air compressor. We know a lot about the HAC. A comment below says that this project has been on hold for five months. I wonder whether that is because they finally tried the idea and found a very hard problem with it. Since the water and the air are in direct contact in the storage tanks, as the pressure increases the water absorbs more and more of the air. When they use the compressed air that is still free inside the tanks to push the water through the turbine to produce power, the pressure in the water drops as it passes through the turbine. That pressure drop causes the dissolved air in the water to escape while the flow is still in the turbine. The turbine can't handle this two-phase flow, which becomes increasingly more air and less water per unit volume as it passes through. It is like the problem, only in reverse, that happens when a pump tries to pump a mixture of air or some other gas and water or some other liquid. It can't do it well enough, or at all. The technical explanation is set forth in many places including the internet, for instance, "pumping two-phase flow." In other words, Augwind did not know about, and did not anticipate, the Champagne Effect. This effect has been studied thoroughly. It became obvious more than forty years ago when water-compensated CAES became a subject of great interest. Because of this effect, it is very difficult to safely operate a water-compensated CAES cavern. (Hydrostor, beware.) And because of it, I do not see how Augwind can generate much power with this arrangement. They can store energy with it at high efficiency, but they won't get most of it back without a lot more research, probably some patentable discoveries, and a much longer time to market. I don't think they are nearly ready to sell their system. If this is the reason for putting the project on hold, it will be far from the first time that the problem of dissolved air in the water has put a stop to the dream.

Wind generator are ideal , they are shutdown 20 to 40% of the time for low Wind, hig hwinds, because solar is over production so direct drive Wind waterpump are ideal. Plus the tower can be designed as a air tank becoming almost cero investment in storage.

Compress air without losing heat ? I don't think so... even with the water to cool it down, it does not change anything to the fact that we will lose energy there anyway, the only difference is that the heat goes into the water.

so the air can't directly push turbine like with wind power blades? Because if it could just be air meets turbine blades, that design could work for hybrid vehicles and electric plants.

What about the efficiency of this system .. I think it will be below 30%

How much its cost per mega watt

This is how deep well works.

It is better to use gravity energy storage system 😅😅😅

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I have an energy company. What is the price per KWH stored?

PRO: il sistema è interrabile, basso impatto ambientale CONTRO: bassa densità energetica, necessita di grandi superfici. Liquid air: PRO: densità energetica superiore CONTRO: alto impatto ambientale(credo per questioni di sicurezza non interrabile). VOLANI: Costosi, nulla sul mercato per uso abitativo. Per l'uso privato nulla oltre le butterie.. investirei in questa direzione. Dulcis in fundo... Solare-eolico> hho> Co2> metano (qui ci divertiamo con le effic enze) Quest'ultima soluzione dovrebbe essere fortemente incentivata poiche preleviamo dall' atmosdera la mostruosa Co2!

Wen house?

how do i can make video like this?

Is it safe?

This is not new and sadly not effective (and nothing you can fix without breaking physics). If you compress air at let's say 200 bar, you'd only be able to store 0.4kWh per m³ of pressurized space. Energy Density = (P * V) / (k * (γ - 1)). There is also some losses, with the efficiency being ~70% to compress it, and another loss at generating electricity, in total probably around ~50% regained energy. There are other ways like heating salt etc that are more sensible to store significant amounts.

Damn what is the world coming to. When People come up with very complex mechanisms to make a simple turbine spin

Fake coz they never reply

Not that revolutionary. The Amish have been doing this for decades.

I want Wikipedia

The Amish already do this

Bbbb

ONLY WATER AND AIR ??? So what are all those solar panels for: To cook breakfast ???