Charybdis - 21st century style :)

Unlike Charybdis, this whirlpool generates clean power to the max. :)

1178B, 0401.ODY.7 from The Dorian Gallery.

The other crag is lower—you will see, Odysseus—
though both lie side-by-side, an arrow-shot apart. 
Atop it a great fig-tree rises, shaggy with leaves, 
beneath it awesome Charybdis gulps the dark water down.
Three times a day she vomits it up, three times she gulps it down, 
that terror! Don’t be there when the whirlpool swallows down—
not even the earthquake god could save you from disaster.