A Video Primer On The Power Of Marine Energy

You’ve probably seen water at work generating electricity at dams and other hydropower facilities in your region. But an emerging clean energy technology called marine and hydrokinetic (MHK) energy — or ocean power — uses water to generate electricity in a different way, and has yet to get on many people’s radar. The Energy Department’s new Energy 101 video illustrates the basics of how MHK devices capture energy from the motion of waves, tides and even river currents.

Ocean Renewable Power, Nova Scotia

image via Ocean Renewable Power

Covering about three quarters of earth, our oceans are one of the biggest potential renewable energy sources on the planet. The Energy Department estimates that the maximum theoretical electric generation that could be produced from U.S. wave and tidal resources is approximately 1,420 terawatt hours (TWh) per year. That’s about one-third of the nation’s total annual electricity usage.  Of course, not all of this theoretical potential will be developed, but this vast resource clearly holds promise as one of the clean energy sources of the future.

In fact, the town of Eastport, Maine, is already benefitting from a grid-connected MHK system that harnesses energy from water moving in and out of Cobscook Bay from tidal currents. Announced last summer, this Energy Department-funded pilot was developed by Ocean Renewable Power Company, which plans to expand its MHK project and install additional tidal current energy devices to generate more energy off the coast of Maine, as well as in Alaska’s tidal or river currents.

Developing our nation’s promising and diverse renewable energy resources is an important part of President Obama’s all-of-the-above energy strategy, which will create jobs and strengthen U.S. global competitiveness. With future investments planned to advance ocean power and other renewable energy innovations, the Energy Department is working hard to ensure that America leads in the fast-growing global clean energy industry.

doe-energyEditor’s Note: EarthTechling is proud to repost this article courtesy of the U.S. Department of Energy. Author credit goes to Eric Barendsen.

The mission of the Energy Department is to ensure America’s security and prosperity by addressing its energy, environmental and nuclear challenges through transformative science and technology solutions

1 Comment

  • Reply May 7, 2013

    Marat Babamuratov

    Да все это ерунда и пустая трата денег! Вы западные инженеры тупы как пробки и ничего рядом лежащего с настоящими машинами альтернативной энергетики изобрести не можете. Вот мы советские инженеры изобретаем механизмы окупающиеся за несколько месяцев за счет простоты конструкции и необыкновенной мощности и эффективности. Лично мой конек – гравитация, вечный и самый мощный источник даровой энергии. Основанный на гравитации проект авто и железных дорог генерирующих энергию, достаточную для обеспечения энергией всего мирового производства и бытовых нужд человечества.

    Yes, all this is nonsense and a waste of money! You are stupid western engineers as plugs and lying next to nothing with these alternative energy cars can not invent. Here we are Soviet engineers invent mechanisms to pay off in a few months due to simple construction and extraordinary power and efficiency. Personally my thing – gravity, the eternal and the most powerful source of free energy. Based on the gravity project cars and railways generating enough energy to power the world’s production and domestic needs of humanity.

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