On: 4-hour battery storage is cheaper to install than gas turbines all across globe

[pfdietz]

Hydrogen leaked into the troposphere is quickly oxidized back to water. Only very little makes it to the very upper atmosphere where it can escape.

Storage of hydrogen in underground caverns is demonstrated technology.

[literalAardvark → pfdietz]

Interesting, thanks. I really should have double checked before posting on HN.