11.1 Fossil Fuels to Electricity Unit 11: Energy May 19, 2009 Unit 11: Energy

Homework Questions Explain how fossil fuels are used to produce electricity. Distinguish between renewable and non-renewable resources. Explain how out major sources of energy are dwindling May 25, 2019 Unit 11: Energy

August 14, 2003 The electricity blackout on August 14, 2003, highlighted the fragility of our electricity system and unleashed a torrent of proposals to upgrade it. May 25, 2019 Unit 11: Energy

Satellite composite image shows the lack of night lights. May 25, 2019 Unit 11: Energy

Electricity: Energy on Demand Enormous amounts of electric energy can be transported through a wire the diameter of a quarter. May 25, 2019 Unit 11: Energy

Electric Generator Huge electric generators used in power plants require great amounts of energy for conversation into electricity. May 25, 2019 Unit 11: Energy

Fossil Fuels Takes hundreds of millions of years to form. Formed from Plants & animals Fossil Fuels include Coal Oil Natural gas May 25, 2019 Unit 11: Energy

Energy Sources Transportation Industry Electricity Commercial, public World 16% - US 25% Industry World 28% - US 19% Electricity World 19% - US 29% Commercial, public World 17% - US 15% Other World 20% - US 12% May 25, 2019 Unit 11: Energy

Coal Powered Diagram May 25, 2019 Unit 11: Energy Coal-fired units produce electricity by burning coal in a boiler to heat water to produce steam. The steam, at tremendous pressure, flows into a turbine, which spins a generator to produce electricity. The steam is cooled, condensed back into water, and returned to the boiler to start the process over. May 25, 2019 Unit 11: Energy

Coal-fired units produce electricity by burning coal in a boiler to heat water to produce steam. The steam, at tremendous pressure, flows into a turbine, which spins a generator to produce electricity. May 25, 2019 Unit 11: Energy

Energy Sources Oil Coal Natural Gas Nuclear Power Other World 40% - US 43% Coal World 28% - US 24% Natural Gas World 20% - US 23% Nuclear Power World 6% - US 7% Other World 6% - US 3% May 25, 2019 Unit 11: Energy

Dwindling Supplies of Fossil Fuels The Hubbert peak theory posits that for any given geographical area, from an individual oil-producing region to the planet as a whole, the rate of petroleum production tends to follow a bell-shaped curve. It is one of the primary theories on peak oil.

Renewable Energy Resources Wind The modern of windmills are called wind turbines, or wind generators, and are used to generate electricity. Solar Energy Solar panels like that seen at right, generate electricity. May 25, 2019 Unit 11: Energy

May 25, 2019 Unit 11: Energy

Nonrenewable Energy Resources Non-renewable resources are energy resources that take to long to regenerate. Oil, coal & natural gas took hundreds of millions of years to form. Geologic forces such as the hypsithermic climate of the Eocene period must be duplicated. May 25, 2019 Unit 11: Energy

May 25, 2019 Unit 11: Energy