1. Tidal Energy By: Melissa Pskowski Nicole Liguori Nicole Liguori

2. Tidal Energy Tidal Power is used to produce electricity by using the energy from the tides of the ocean. Tidal Power is used to produce electricity by using the energy from the tides of the ocean. Tidal Stream systems are very similar to windmills. Kinetic energy from the moving water of the tides spins turbines thus generating electricity. This electricity is produced by using tidal energy generators. Tidal Stream systems are very similar to windmills. Kinetic energy from the moving water of the tides spins turbines thus generating electricity. This electricity is produced by using tidal energy generators.

3. Tidal Power: East River New York So far 6 turbines have been put in place in hopes of creating a renewable energy source using the rivers intense and fluctuating currents. So far 6 turbines have been put in place in hopes of creating a renewable energy source using the rivers intense and fluctuating currents. There is a proposed 300 turbines they hope to install which could generate enough power to generate electricity to 10,000 homes. There is a proposed 300 turbines they hope to install which could generate enough power to generate electricity to 10,000 homes. This project is known as the RITE project named for the Roosevelt Island Tidal Energy Project. This project is known as the RITE project named for the Roosevelt Island Tidal Energy Project.

4. Tidal Barrage Very similar workings like a hydro-electric scheme, but the dam is much bigger. Very similar workings like a hydro-electric scheme, but the dam is much bigger. A dam is built across a river – then water is trapped at high tide – at low tide the water is released A dam is built across a river – then water is trapped at high tide – at low tide the water is released Released water turns turbines turning generators produces electricity Released water turns turbines turning generators produces electricity

5. Advantages of Tidal Energy Inexpensive: not costly to maintain and once its been built it is free (underwater turbines). Inexpensive: not costly to maintain and once its been built it is free (underwater turbines). Environmentally Friendly: no fuel is needed and there are no greenhouse gases or other waste. Environmentally Friendly: no fuel is needed and there are no greenhouse gases or other waste. Reliability: produces electricity and the tides are predictable Reliability: produces electricity and the tides are predictable Turbines are do not take much to build and there is no real, harmful environmental impact. Turbines are do not take much to build and there is no real, harmful environmental impact.

6. Disadvantages of Tidal Energy Effects on plants and animals that live near tidal station Effects on plants and animals that live near tidal station Very expensive to construct a barrage Very expensive to construct a barrage Limited construction locations Limited construction locations Power is often generated when there is a little demand for electricity. Power is often generated when there is a little demand for electricity.

7. What Causes the Tides? Tides are caused by the relative motions of the Earth, Moon and Sun and the gravitational forces that accompany each. Tides are caused by the relative motions of the Earth, Moon and Sun and the gravitational forces that accompany each. Water levels and tidal currents are caused by the positions of the Sun and Moon relative to the Earths rotation. Water levels and tidal currents are caused by the positions of the Sun and Moon relative to the Earths rotation. Thus, making this resource completely renewable. Thus, making this resource completely renewable. Tidal energy can be used to its greatest potential in areas with strong tides, current velocities, and a high water level. Tidal energy can be used to its greatest potential in areas with strong tides, current velocities, and a high water level.

10. Bay of Fundy Is a bay on the Atlantic coast of North America. It’s located on the northeast end of the Gulf of Maine between the provinces of new Brunswick and Nova Scotia in Canada. Is a bay on the Atlantic coast of North America. It’s located on the northeast end of the Gulf of Maine between the provinces of new Brunswick and Nova Scotia in Canada.

11. Why is it so unique? It is known for its high tidal range and the bay is recorded as having the highest vertical tidal range in the world. Tides can rise to the height of a four story building It is known for its high tidal range and the bay is recorded as having the highest vertical tidal range in the world. Tides can rise to the height of a four story building

12. Electrical Power Generation There have been several proposals to build tidal harnesses for electrical power generation. Mainly involving building barrages which effectively dam off a smaller arm of the bay and extract power from water flowing through them. There have been several proposals to build tidal harnesses for electrical power generation. Mainly involving building barrages which effectively dam off a smaller arm of the bay and extract power from water flowing through them.

13. Works Cited Tidal Power. Wikipedia. Wikipedia Foundation, Inc. 21 Apr 09. www.wikipedia.org/tidalpower. Tidal Power. Wikipedia. Wikipedia Foundation, Inc. 21 Apr 09. www.wikipedia.org/tidalpower. www.wikipedia.org/tidalpower Energy Resources-Tidal Power. 17 Apr 09. http://home.clara.net/darvill/altenerg/tidal.htm. Energy Resources-Tidal Power. 17 Apr 09. http://home.clara.net/darvill/altenerg/tidal.htm. http://home.clara.net/darvill/altenerg/tidal.htm N.Y. Tests Turbines to Produce Power. Washington Post. 17 Apr 2009. http://www.washingtonpost.com/wp-. N.Y. Tests Turbines to Produce Power. Washington Post. 17 Apr 2009. http://www.washingtonpost.com/wp-. http://www.washingtonpost.com/wp-

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