OCEAN WAVE ENERGY

1. OCEAN WAVEENERGY By: Katrina & Tanaya

2. OCEAN WAVE ENERGY (SUMMARY) Waves are caused by the wind blowing over the surface of the ocean. Wave energy is gathered from waves beneath the wave surface. In deep water some energy can travel for thousands of miles until the waves hit the shore in the distance and the energy disappears. There is a lot of energy in the ocean waves. Wave energy is produced when generators are placed on the surface of the ocean. The total power of the waves is approximately 2 – 3 million megawatts.

3. OCEAN WAVE ENERGY (SUMMARY) Japan is one of the countries that has an active wave program. The west coast of the US and Europe are also to use the wave energy is to push the waves into a good areas for using wave energy. Arrow channels will increase the size of the waves. The waves will be further pushed into a catch basin or the waves can be used to spin the turbines. Tidal turbines work like wind turbines but they are located in the water were there is strong tidal flow.

4. OCEAN WAVE ENERGY(How it Works)

5. OCEAN WAVE ENERGY (ADVANTAGES & DISADVANTAGES) ADVANTAGES One advantage about ocean energy is that we will always have it. It will be here for a lifetime. Ocean energy is safe and clean unlike some other forms of energy (e.g.. fossil fuels), ocean energy will not damage the land. There are lots of different ways to gather this source of energy. People can installed power plant with hydro turbines, seafaring vessels equipped with massive structures that are laid into the sea to gather the wave energy. There are lots of big cities are near the coast, so they can gather the power of the waves to use for energy. Wave energy is always flowing so people can figure out the amount that it can produce for energy.

6. OCEAN WAVE ENERGY (ADVANTAGES & DISADVANTAGES) DISADVANTAGES Only power plants and cities that are near the ocean can benefit from this source of energy. Even though wave energy is clean and safe, it can be dangerous for the sea creatures that are live near the big machines. Wave powers depends on strong waves to generate enough energy source. Wave power drops during rough weather.

7. SOLAR ENERGY

8. SOLAR ENERGY(How it Works) Solar energy can be used in two simple ways. The first way we can use the solar energy is called solar thermal energy. Thermal means heat, so solar thermal energy just means heat energy from the sun. We use this is to heat things in our house such as the water in our houses, or food. The second way we can use solar energy is to turn light from the sun directly into electricity, using solar panels. When sunlight hits a solar panel, it makes electrons in the panels move  around (Electrons are teeny tiny specks, the electrons flow through wires that were built into the solar panel). Then instantly we have electricity. Solar panels are also called photovoltaic panels. "Photo" means light and "voltaic" means electricity. Large numbers of solar cells are put together to create solar panels.

9. SOLAR ENERGY (SUMMARY) Solar energy is energy that comes from the sun’s rays. This energy can be changed into other forms of energy, such as heat and electricity. In North America, solar power is one of the most popular form of other energy source. Solar power can be used to heat water and pools, cook, and light homes and buildings. Solar energy is not new, it has been around for five billion years. Humans have been using solar energy for thousands of years. While solar power is becoming more efficient, it only provides a small amount of the world’s energy supply. The largest solar power plant in the world is found in the Mojave Desert, USA.

11. SOLAR ENERGY (ADVANTAGES & DISADVANTAGES) ADVANTAGES Solar power energy is free. Solar power helps to save you money. If you use solar panels on your roof, you can save a lot of money on your electricity bills. Solar energy provides a reliable source of energy because we know the sun will rise and set, so we can plan the amount of sunlight we get to produce electricity. Using solar panel system helps create electricity without producing pollution and gases.

12. SOLAR ENERGY (ADVANTAGES & DISADVANTAGES) DISADVANTAGES Solar energy can only be produced when it is daytime and sunny. The sun does not shine all day. When the sun goes down or it is cloudy, the solar panels stop producing electricity. If people need electricity at those time they have to get from other sources. Solar is used to charge batteries and the batteries help the solar power devices work at night. The batteries need to be replaced a lot and they are large and bulky. Solar panels can be very expensive to buy and put on your roof. In some countries (example England), solar energy might not work well because the climate is not a great source of energy as cloudy skies reduce the use of solar energy.

13. COOL FACTS • Solar energy is clean. No fossil fuels are used to produce heat or electricity with solar energy. • The sun's energy can be used in a different ways. Solar power can be used to cook food, heat and cool homes, warm water and light buildings. • Solar thermal power creates electricity by heating water into steam. This heat can be used to warm the water for your morning shower. • Solar energy is measured in kilowatt-hours - 1 kilowatt = 1000 watts.

14. Sources Ocean Wave Energy Sources: www.conserveenergy-future.com www.kids.esdb.bg/ocean.html Google images Solar Energy Sources: cleantechica.com www.technologystudents.com www.sciencekids.com Youtube Google images

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