Hydropower - y: B mr Ka y ov Ho 7/7/11 H r e w o p ro d y...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: y: B mr Ka y ov Ho 7/7/11 H r e w o p ro d y Click to edit Master subtitle style Facts . H ydr opower Gener ates Electr icity Hydropower is the renewable energy source that produces the most electricity in the United States. It accounted for 7% of total U.S. electricity generation and 35% of generation from renewables in 2009 7/7/11 History of Hydropower Hydropower is one of the oldest sources of energy. It was used thousands of years ago to turn a paddle wheel for purposes such as grinding grain. Our Nation's first industrial use of hydropower to generate electricity occurred in 1880, when 16 brush-arc lamps were powered using a water turbine at the Wolverine Chair Factory in Grand 7/7/11 Where is hydropower stored and how is it released ? The most common type of hydroelectric power plant uses a dam on a river to store water in a reservoir. Water released from the reservoir flows through a turbine, spinning it, which in turn activates a generator to produce electricity. But hydroelectric power doesn't necessarily require a large dam. Some hydroelectric power plants just 7/7/11 How is hydropower used today? Hydroelectric power generates about 10% of the nation's energy A small or micro-hydroelectric power system can produce enough electricity for a home, farm, or ranch. 7/7/11 Advantages of hydropower Once a dam is constructed, electricity can be produced at a constant rate. If electricity is not needed, the sluice gates can be shut, stopping electricity generation. The water can be saved for use another time when electricity demand is high. Dams are designed to last many 7/7/11 Disadvantages of hydropower Dams are extremely expensive to build and must be built to a very high standard. The high cost of dam construction means that they must operate for many decades to become profitable. The flooding of large areas of land means that the natural environment is destroyed. 7/7/11 7/7/11 ...
View Full Document

This note was uploaded on 06/22/2011 for the course ECON 212 taught by Professor Shwritzer during the Summer '11 term at Alabama A&M University.

Page1 / 8

Hydropower - y: B mr Ka y ov Ho 7/7/11 H r e w o p ro d y...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online