I don't think they are disputing that, its the actual mas vs volume that
they are talking about.
Everything I know that is heavy is certainly not benign, so what exactly
is it?
Brian

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"charles" wrote in message
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In article , S
wrote:
On 08/02/2021 08:42, polygonum_on_google wrote:
Anyone convinced?

Powering up: UK hills could be used as energy 'batteries'

Engineers explore using gentle slopes rather than steep dams or
mountains to store electricity

https://www.theguardian.com/environm...ergy-batteries

RheEnergise is bringing innovation to pumped hydro storage. We call our
new solution High-Density Hydro �.

HD Hydro � uses our proprietary HD Fluid R-19 �, which has 2.5x the
density of water. R-19 gives RheEnergise projects 2.5x the power and
2.5x the energy when compared to water.

https://www.rheenergise.com/

I wonder what their proprietary HD Fluid R-19 � actually is?

They claim: Our innovative fluid R-19 TM is environmentally benign and
has been engineered to be non-reactive and non-corrosive.



I expect they say its because of PE = m.g.h

where PE is Potential energy = mass x value of gravity x hieght.

So by increasing the mass by 2.5x, you then get 2.5 x the PE.

But you've had to expend 2.5 the amount of power to get it up hill first.

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