15 Mar '17, 4pm

Ocean currents might just be the answer to clean and limitless #renewableenergy.

Ocean currents might just be the answer to clean and limitless #renewableenergy.

Tidal energy is produced by the surge of ocean water during the rise and fall of tides. Submerged rotors harness the power of the ocean currents to drive generators, which in turn produce electricity. These large underwater turbines are placed in areas where a significant difference between the low tide and high tide exists—such as the Pentland Firth , the body of water that separates the north Scottish mainland from Stroma Island. “Tidal flows that we want to tap into move at about 7-10 miles per hour,” explained Tony Pellegrino, research engineering senior manager at Lockheed Martin. “This may seem slow when compared to wind, but considering the fact that water is approximately 800 times more dense than air, there is a lot of energy in those tides.”

Full article: http://www.lockheedmartin.com/us/innovations/103116-makin...

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