Yerington Pit, Anaconda Mine, Yerington, NV.

k/b equivalent to 1 m of dry concrete

Retains 92% of gas pressure after 15 h storage.

Pressure Vessel

V = 5.7 x 10⁷ m³

A = 1.3 x 10⁶ m²

M = 1.1 x 10⁸ t

P  = 2.5 x 10⁶ Pa

Pressurizing Layer

V_PL = 1.1 x 10⁸ m

A_PL = 2.3 x 10⁶ m²

M_PL = 2.2 x 10⁸ t

Whole Device

V_T = 1.7 x 10⁸ m³

A_map = 1.1 x 10⁶ m²

M_T = 3.4 x 10⁸ t

Assume

ρ = 2.00 t∙m^-3

ϕ = 0.2 scalar

Energy Storage Capacity

CAES     5.3 x 10⁶ kW∙h      0.18% of US need

H₂           7.4 x 10⁷ kW∙h      2.48% of US need

Tesla Powerwalls (13.5 kW∙h at $5500 each)

CAES      391k at $2.2B

H₂            5.5M at $30B

photo: https://commons.wikimedia.org/wiki/File:

Anaconda_Copper_Mine,_Near_Yerington,_

Nevada_(15700705511).jpg#file Ken Lund, 2014 CC-BY-SA-2.0

This information is provided as an intellectual exercise and is not meant to imply endorsement by any company or community.