Renewable Energy Resources

1. Solar

1.1. Heat from the sun

1.2. No pollution

1.3. Costly startup

1.4. Only in sunny places

2. Biomass

2.1. chemical energy from organic materials

2.2. Low cost

2.3. needs large area

3. Tidal

3.1. water gravitational energy

3.2. No pollution

3.3. Costly to maintain

3.4. Flooding treats

4. Wave

4.1. from sea waves

4.2. No pollution

4.3. needs machines

4.4. very costly

5. Hydroelectric

5.1. Water's Kinetic energy

5.2. Costly to start

5.3. No Pollution

5.4. Takes up space

6. Wind

6.1. energy from wind

6.2. no pollution

6.3. Turbines are noisy

6.4. Must be in a windy place

7. Geothermal

7.1. Underground steam

7.2. NO Pollution

7.3. Startup is costly

7.4. Only a few available places to get energy