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Here in the Pacific Northwest they plan to have a reservoir both at the top and the bottom. That alleviates environmental problems, both from leakage of coolents and lubricants, and also from water temperature. Put this in tandem with battery storage, and you have instantaneous response to the demands of the grid, as well has a huge reserve.
Yes, there is a need for the battery. A battery like the one at the Hornsdale wind farm reacts in milli-seconds. It take a minute or more for the pumped hydro to react. That reaction time is important for grid stability. However, it would be far smaller in MW/hrs than the hydro storage.Not a new thing. Also not suitable for everywhere. Not everybody has hills. Mainly just wanted to point out that water will seep into the ground so the no leakage thing isn't quite right. BTW, the top lake is the "battery" in these systems. There is no need for additional battery storage.
Now that technology has been around for a long, long time However, it is not efficient compared to a water turbine.Water Mills work just as efficiently with NO toxic waste of any kind, and NO pollution of any kind!!!
Water Mills have double uses as water pumps AND electric "turbines". Again, without toxic waste or pollution of any kind.
None. The idea is mainly to have a safe load always ready to accept wind and solar farm output. It's free power that would just be wasted or not generated otherwise.How much power does it take to pump all that water up
Here in the Pacific Northwest they plan to have a reservoir both at the top and the bottom. That alleviates environmental problems, both from leakage of coolents and lubricants, and also from water temperature. Put this in tandem with battery storage, and you have instantaneous response to the demands of the grid, as well has a huge reserve.
Some small European places have adapted them to be more efficient, and integrated them with technology to make them more powerful, rather than get into all this high tech stuff that makes more toxic garbage than they are worth.Now that technology has been around for a long, long time However, it is not efficient compared to a water turbine.
Yes, there is a need for the battery. A battery like the one at the Hornsdale wind farm reacts in milli-seconds. It take a minute or more for the pumped hydro to react. That reaction time is important for grid stability. However, it would be far smaller in MW/hrs than the hydro storage.
The reason some grid scale fast lithium ion battery storage is increasingly being used is well explained in the video here.The grid has far more time to adapt than "milli-seconds" to changes in supply and demand.
Wind generators still operate at night and in dark, stormy weather. Also, peak energy demand occurs during the day so how could it be any more "needed" at night?They can move excess capacity to move water up the hill to sit until needed at night.
It is not "perpetual motion" for reasons having to do with wear and tear, not efficiency. However, wherever the Sun is the ultimate energy source, as opposed to using freshly extracted carbon or other pollutants like radioactive elements, the power generated is essentially "free" since the Sun charges us nothing and there's no ongoing production of waste byproducts to clean up. This is why open systems, like water wheels, are naturally more efficient than any imaginable "closed system" competitor. What counts is C.O.P. or coefficient of performance, whereas "efficiency" is most often propaganda meaning "uses less fossil fuel to accomplish what it did before with more."Some think of it as perpetual motion.
It is not.
Efficiency is far less than 100%. It's a game but it's not a free game.
The reason some grid scale fast lithium ion battery storage is increasingly being used is well explained in the video here.
Wind generators still operate at night and in dark, stormy weather. Also, peak energy demand occurs during the day so how could it be any more "needed" at night?
Here in the Pacific Northwest they plan to have a reservoir both at the top and the bottom. That alleviates environmental problems, both from leakage of coolents and lubricants, and also from water temperature. Put this in tandem with battery storage, and you have instantaneous response to the demands of the grid, as well has a huge reserve.
