Gravity- not so harsh a mistress

Sisyphus Power Co.

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“Gravity- not so harsh a mistress”

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That’s very odd. I wonder what advantage this system has over a pumped storage system using the same drop.

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Apparently the mechanics are somewhat more energy efficient, at least according to this article:

“Because pumped hydro requires you to utilise a motor-driven pump to move the water to a higher location, there is a significant loss of energy storage capacity of approximately 30%,” Piconi adds.

“Pumped hydro plants have a round-trip efficiency of around 70%, whereas the Energy Vault system has a round-trip efficiency of between 88%-92%, which allows for a greater energy storage capacity and thus fundamentally better economics.

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Gravity? What gravity?

“Found a cure for daylight yet?
Tom Tomorrow and Sermonette
Found a cure for gravity yet?
Yes, I’m addicted to roofs and jets
Found a cure for hunger yet?
Black coffee, cigarettes
Found a cure for desire yet?
I don’t wanna talk about that,
I don’t wanna talk about that”

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