battleship railgun

“Even the metal detector gates require an industrial power source. Do you have any idea
how much power it would take to supply the grill-level heat needed to precisely and
stably melt that thick ice!? It just isn’t possible unless you have exclusive access to the
diesel engine of a battleship or something!!”
“In other words, you just need enough electricity to power a battleship railgun?”
The white coat girl’s entire body shook.
This should have been an impossible request.
But those two girls stood in very different positions.
Misaka Mikoto had the girl’s word, so she pointed a thumb back at her own chest.
“Then I’ll take care of it. As the Railgun, Academy City’s #3 and the strongest
Electromaster.”
“Then...”
She sounded dazed.
The white coat girl moved her trembling lips like she stood in the middle of a wasteland.
“...Then we really can save her?”

- Toaru Kagaku no Railgun: Cold Game, Part 18