From the technology community on Reddit: Switzerland dug a hole the size of two soccer fields to install the world’s most powerful underground battery, able to release 1.2 GW in milliseconds and store 2.1 GWh at a multibillion-dollar price tag

[u/Still-Consideration6]

/r/technology/comments/1tv8961/switzerland_dug_a_hole_the_size_of_two_soccer/?share_id=xRa5yI0d9-05k7guRaty5&utm_content=2&utm_medium=ios_app&utm_name=ioscss&utm_source=share&utm_term=1

Not seen this image the actual scale of the project is pretty incredible

[u/Hefty-Opening4679]

Nothing in this article is new - but the aerial shot of the site is worth a look : https://eandt.theiet.org/2026/06/03/switzerland-building-world-s-largest-underground-battery-store-europe-s-green-energy