Tidal Energy

Balancing renewable energy production and ecological preservation is a difficult business for governments who have ample resources, but also pristine environments that would be negatively impacted.
May 18, 2013   Global Site Plans - The Grid
Experimental efforts are being made to harness the extreme currents off Maine's coast, as underwater tidal energy turbines could soon generate power for nearby homes and businesses.
Aug 12, 2012   The New York Times
Testing is underway in the U.K. on 'Anaconda', a giant rubber 'snake' that converts tidal wave energy to electricity. A full-sized Anaconda could reportedly power 1,000 homes.
May 8, 2009   New Scientist