www.thinkprogress.org/climate/2014/03/24/3418381/puget-sound-ocean-tidal-power/
"At the end of last week, the Federal Energy Regulatory Commission gave the go-ahead for a 10-year project testing our ability to generate electricity from the movement of the ocean.
The license permits Public Utility District No. 1 of Snohomish County to install two underwater turbines in the Admiralty Inlet near Seattle, Washington."