Hello,

We noticed you're browsing in private or incognito mode.

To continue reading this article, please exit incognito mode or log in.

Not an Insider? Subscribe now for unlimited access to online articles.

Sustainable Energy

First Tidal Power Generator

This summer, the first commercial electrical generator to draw power from the ocean tide began supplying Northern Ireland with energy. Installed in an inlet near Belfast, the generator works much like a wind turbine, with massive blades turned by the tide’s current. The angle at which the blades meet the current can be changed: rotating the blade face 180º lets the turbine catch the tide in both directions, while smaller rotations lessen the force exerted on the turbine, preventing damage.

Credit: Marine Current Turbines

This story is part of our September/October 2008 Issue
See the rest of the issue
Subscribe
Product: SeaGen

Cost: 30 to 40 cents per kilowatt-hour; a planned installation with seven turbines will lower that cost to about 20 cents per kilowatt-hour

Source: www.seageneration.co.uk

Company: Marine Current Turbines

More from Sustainable Energy

Can we sustainably provide food, water, and energy to a growing population during a climate crisis?

Want more award-winning journalism? Subscribe to Insider Online Only.
  • Insider Online Only {! insider.prices.online !}*

    {! insider.display.menuOptionsLabel !}

    Unlimited online access including articles and video, plus The Download with the top tech stories delivered daily to your inbox.

    See details+

    What's Included

    Unlimited 24/7 access to MIT Technology Review’s website

    The Download: our daily newsletter of what's important in technology and innovation

/3
You've read of three free articles this month. for unlimited online access. You've read of three free articles this month. for unlimited online access. This is your last free article this month. for unlimited online access. You've read all your free articles this month. for unlimited online access. You've read of three free articles this month. for more, or for unlimited online access. for two more free articles, or for unlimited online access.