1. Renewable Energy
Mary Robinson

2. Outline
Definition
History
Usage
Why Care?
Questions

3. Definition Found in CAERT Lesson
Renewable natural resources can be replaced when they are used. They can be renewed and used again, but it may take many years.
Nonrenewable natural resources are natural resources that cannot be replaced after use.

4. Definition Continued Found in CAERT Lesson
Exhaustibility refers to whether or not a natural resource can be replenished as it is used. As with renewability, some resources can be exhausted, others cannot.

5. Definition Continued Energy Current sources: Heat, power for homes
Fuel for vehicles
Current sources:
Coal
Oil
Natural Gas

6. Definition Continued Types of Renewable Energy: Hydropower Bioenergy
Geothermal
Solar
Wind
Hydrogen
Ocean

7. History Source: Energy Information AdministrationBC
Hydropower was used by the Greeks to turn water wheels for grinding grains more than 2,000 years ago.
500–900
The first windmills were developed in Persia for pumping water and grinding grain.
1860
Auguste Mouchout (France), a mathematics instructor, was able to convert solar radiation directly into mechanical power.
1862
Samuel Morey developed an engine that ran on ethanol and turpentine.
1898
Energy recovery from garbage incineration started in New York City.
1904
The first dry steam geothermal power plant was built in Italy.
We often think of renewable energy as a new idea. It is not – wood was used for hundreds and hundreds of years for heating and cooking.

10. U.S. Primary Energy Consumption by Source and Sector,  2008 (Quadrillion Btu)

11. Why Care? Use up reserves of coal, oil, natural gas
Emitting greenhouse gasses
Air pollution = bad for human, animal and plant life
Acid rain
Smog
Energy dependence

12. Questions Why did we turn away from renewable energy?
What is keeping us from returning to renewable energy? How can we overcome these challenges?
How can we as educators encourage our students/those we work with to think about renewable energy?

13. Resources Renewable Energy and Overview:
CAERT Environmental Resources: A1-1: Exploring Natural Resources
Energy Information Administration: