The energy contained in barrel power promoted by startup Energy Vault

Hi everyone, few weeks ago i saw the new energy storage solution promoted by the swiss startup Energy Vault

Here you can see the solution proposed:

According to it i took the time with a partner to analyze the potential energy storage.

Here i show you the information where you could check the results refilling the barrels with 3 kind of materials,one of them is concrete the original solution, other is lead (a material with an estimated 10 times more density compares to concrete), and the last option is petroleum.

I made the calculations with petroleum because i thought is a good solution to stock the world daily barrels production in new form to gain a few Watts/hour more. I didn't calculate that hypothetical gain for each barrel. One thing is clear, the amount of total petroleum barrel contain an energy which can use to enlighting many houses until burn the petroleum.

Other possible material will be the radioactive waste, we can't degrade it yet right? well, in the meantime we can stock it using intelligent form to obtain more energy. I couldn't calculate the potencial energy in this case because i don't have the density of radioactive waste, sorry, sure in my next version of cdocument i gonna consider it, if you have the density you're welcome to share with me to show you the new results.

No more words, here is the link to check all information: https://docs.google.com/spreadsheets/d/1hSQq8ctSgS8mhG-XwuMhoo7ijBeqeNPmFjPyIgl9kz8/edit?usp=sharing

Every single suggestion is welcome to optimize results.

Huilco