Scotland making tidal power productive?

Seeker:
A company in Scotland on Thursday announced it set the world record for producing electricity from the natural undulation of the ocean in the latest advance for a clean power source that’s still in its infancy.

Tidal power uses massive, submerged turbines that function as underwater windmills to produce electricity, pivoting into the current and spinning as the tide goes in and out.

The technology takes advantage of the daily shift in sea levels caused by the gravitational pull of the moon, sun, and rotation of Earth, which can make tidal energy more predictable than wind or solar. Because water is over 800 times more dense than air, tidal energy rotors can also be significantly more compact than those used for wind turbines, which have diameters up to 300 feet.

The company, Atlantis Resources Limited, produced over 700 megawatt hours in August at its flagship underwater MeyGen production site, located in the Pentland Firth, a strait that separates the Orkney Islands from Caithness in the north of Scotland.

“August proved to be a world-record month, providing enough energy to power 2,000 Scottish homes from just two turbines,” said David Taaffe, director of project delivery at the MeyGen site.
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Tides are much more pronounced in Maine than they are in Texas.  In Maine, it is not unusual to see tidal movements of 15 to 20 feet, whereas in Texas it is usually less than two feet unless there is a storm in teh Gulf of Mexico.   I could see how this might be productive in the Northeast US.  I Texas natural gas is probably a better bet.

Comments

  1. The University of Maine was provided grant money to pursue tidal power generation many years ago. Lots of money, free engineering from our best engineering college in Maine, lots of PR and excitement, only to land on the scrap heap of all the other alternative energy generation speculation initiatives. The private sector needs to pursue this, keep the government and their grants of our tax dollars and our children's future national debt out of it.

    http://bangordailynews.com/2017/03/21/business/bad-waterproofing-kept-pioneering-maine-tidal-project-off-the-grid/

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