1. Do Now What is renewable energy? What are some examples of renewable energy? Do you know of any local examples of renewable energy?

2. Renewable Energy Energy from sources that are replenished or are perpetually available Sustainable Energy Renewable energy with low environmental impact

3. How Most Renewable Energy Technologies Work 1.Some force moves a turbine (turbine is like a propeller) a)Wind – moving air b)Nuclear – steam produced by nuclear reaction c)Hydropower – moving water 2. Turbine turns the generator. 3. Generator produces electricity 4. Electricity transmitted via the grid to homes.

4. Wind Energy Energy derived from the motion of air across Earth’s surface

5. What moves air across the earths surface?

7. How is wind converted to electricity?

8. Converting Wind to Electricity

10. Gloucester MA Settled in 1623 (older than Boston) First fishing port in the USA. Average onshore wind speed of 16 mph

11. 750 feet 564 feet

12. 492 feet

13. Gloucester Wind Turbines Varian Semiconductor constructed a 2.5MW 492ft wind turbine. Cost of $8 million, will save the company $1 million in electricity annually. Equity Industrial Partners constructed two 2.0MW turbines at a cost of $12 million, will save the company $500k annually. The city of Gloucester saves $500k annually, by having all electricity provided by wind.

14. Solar Energy Energy harnessed from the sun in the form of heat or light

15. How does a solar panel generate electricity?

18. Dorchester Solar Farm

20. 4,466 solar panels spread over 6 acres of land 1500 MWh per year, saves 4,000 pounds of SO 2, 1,800 pounds of NOx, and 1.8 million pounds of CO 2. This is the equivalent of generating electricity of 260 homes. Also, built upon contaminated soil, so its an environmental win/win