1. Inexhaustible and Renewable Energy Resources

2. ….and coal, and natural gas!

3. Inexhaustible Energy • Sun • Wind • Water • Geothermal • Renewable Energy • Biomass • Wood • Alcohol • Garbage

4. Energy from the Sun • Pros • No Pollution, except in the manufacturing • Very efficient • Installation is more cost effective than laying high voltage wires • Very quiet

5. Energy from the Sun • Cons • Initial installation is expensive • Can only generate electricity during daylight hours • Can be affected by weather

6. http://www.youtube.com/watch?v=4uPVZUTLAvA • http://www.youtube.com/watch?v=NDZzAIcCQLQ

7. Energy from Wind • Pros • No pollution • Little harm to the environment • Produces no waste • Take up little space

8. Energy from Wind • Cons • Initial construction is expensive • Noise • Wind can be inconsistent • Birds?? = Misconception

9. Energy from Wind • http://www.youtube.com/watch?v=niZ_cvu9Fts • According to a recent report posted by the DOE’s National Renewable Energy Lab (NREL), renewables can contribute 80% of American electricity by the year 2050. Much of it will be provided by wind power installations.

10. The fact is…. • There is no perfect energy source. Each and every one has its own advantages and compromises. It is a matter of weighing those advantages against the compromises, the pros against the cons, and making decisions based on what is best for our planet and the future.