William Slawski, of SEO by the Sea, appropriately was the one who is reporting that Google is working on developing sea-based data centers that use hydroelectricity harnessed from floating platforms.
The idea is a clever one - very green and very smart. The water can also be used for cooling. The patent filed in 2007 and granted April 28, 2009 details "a system (that) includes a floating platform-mounted computer data center comprising a plurality of computing units, a sea-based electrical generator in electrical connection with the plurality of computing units, and one or more sea-water cooling units for providing cooling to the plurality of computing units."
Such technology could give a new name to "piracy".