Renewable Energy Sources

1. Renewable Energy Sources

2. Renewable Sources • Renewable Energy Source: • An energy source that can be replaced in a relatively short period of time. • Examples: • hydro-electric, wind,solar, biomass and geothermal

3. Hydroelectric Generation: • the energy of falling water is used to move the large blades of turbines connected to generators. • Many use the water stored behind a dam to generate electricity. • The dam controls to flow of water. • There are 180 hydro-electric generating stations in Ontario.

6. Niagara Falls Power

7. Photovoltaic Generation: • Changes light energy from the Sun directly into electrical energy. • Uses photovoltaic cell to convert the energy

8. Advantages/Disadvantages of Photovoltaic Generation:

11. Wind Generation: • A modern wind turbine is made up of large blades mounted on a tall tower. • As the wind blows, the blades of a turbine turn. • The turbine is connected to a generator.

12. Advantages/Disadvantages of wind

15. Thermal Generation Using Biomass: • Biomass, or biofuel, is any form of bacterial, plant, or animal matter. • Biomass is burned to produce thermal energy. • This heats water into steam that can turn a turbine connected to a generator to produce electricity.

16. Advantages/Disadvantages of Using Biomass:

19. Geothermal Generation: • Geothermal generation uses wells drilled deep underground to access thermal energy. • Hot geothermal gases are then piped to a generating station, where the thermal energy turns water into steam.

20. Advantages/Disadvantages of Geothermal:

22. What Does the Future Hold? • In Ontario, about 26% of all electrical energy comes from burning coal and natural gas, 52% from nuclear sources. • This means that 78% of Ontario’s electrical energy is produced using non-renewable energy sources. • Therefore, we need to develop ways to use less electrical energy!!! Jack Layton's house