1 / 15

Renewable Resources

Renewable Resources. Note cards for mobile . Write how the alternative energy resource works Write two advantages Write two disadvantages . Solar Energy from the Sun. How I t Works Photovoltaic or photoelectric cells are used to convert sunlight directly into electricity. Uses

maura
Download Presentation

Renewable Resources

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Renewable Resources

  2. Note cards for mobile • Write how the alternative energy resource works • Write two advantages • Write two disadvantages

  3. Solar Energy from the Sun • How It Works • Photovoltaic or photoelectric cells are used to convert sunlight directly into electricity. • Uses • Heat water, cook food, power lights, used on satellites • Renewable • Yes, as long as the Sun remains burning • Advantages • Free • Does not need fuel • Produces no waste or pollution • Safe • Disadvantages • Large power cells are expensive. • Needs mostly sunny climate • Energy has to be stored.

  4. Photovoltaic or Photoelectric Cells

  5. Wind Energy from Moving Air • How It Works • Wind is converted into electrical or mechanical energy. • Uses • Produce electricity, used on satellites • Renewable • Yes, as long as the Sun heats the air and causes winds • Advantages • Free • Does not need fuel • Produces no pollution • Disadvantages • Doesn’t work without wind • Can be noisy • May kill birds

  6. Wind Energy

  7. WavesEnergy from the Ocean • How It Works • Wind is converted into electrical or mechanical energy. • Uses • Produce electricity • Renewable • Yes, as long as wind blows across water • Advantages • Free • Does not need fuel • Produces no waste • Can produce a great deal of energy • Disadvantages • Needs strong and consistent waves • Can be noisy • Equipment must be able to withstand very rough weather.

  8. Wave-Tide Energy

  9. Geothermal Energy from Below the Crust • How It Works • Steam is collected and used to drive a turbine (engine). • Uses • Produce electricity, heat homes • Renewable • Yes, as long the rocks remain heated by magma • Advantages • Needs little or no fuel • Minimal physical impact on the environment • Disadvantages • Dangerous gases can come up from underground. • Power plants can only be built in specific locations.

  10. Geothermal Energy

  11. Hydroelectric Energy from Falling Water • How It Works • The kinetic energy of falling water is converted to electrical energy. • Uses • Produce electricity • Heat/cool homes • Renewable • Yes, as long as the water cycle continues • Advantages • Very reliable • Water can be stored in dams for future use. • Disadvantages • Expensive to build dams • Causes upstream flooding

  12. Hydroelectric Energy

  13. Biofuel Energy from Organic Material • How It Works • Biofuel energy works by using fuels from living or dead biological organisms. • Uses • Replaces gasoline or diesel for vehicles • Renewable • Yes, as long as there is organic material/waste being produced. • Advantages • Reduces waste materials • Fuel tends to be cheap. • Disadvantages • When burned, it creates greenhouse gases.

  14. Biofuel

  15. Energy from Other Sources • Tidal • Uses the tides to generate energy • Nuclear • Splits the atom to produce energy • Waste • Burns garbage to produce energy • Hydrogen Cells • Converts hydrogen gas and oxygen to electricity • All forms of energy have advantages and disadvantages.

More Related