Some new clues are emerging around a mysterious barge floating in San Francisco Bay off Treasure Island.
Several reports speculate the barge is home to a floating data center that may be owned by Google. Google sources have said repeatedly they have no comment about the story, but now there is independent confirmation.
"We can confirm that Google is involved or associated with the barge but there is a nondisclosure agreement in effect; the Coast Guard is unable to discuss or divulge any further details at this time," said Petty Officer 1st Class Thomas McKenzie, a Coast Guard spokesman.
As CNET first reported, Google does have a patent for a water-based data center that can be cooled by the flow of sea water.
CNBC spoke with several data center experts who said the idea could work.
(Read more: Google tied to mysterious barge in SF bay)
That's because it is mobile and could be deployed off any coast around the world. The experts spoke on condition of anonymity.