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Flywheel Batteries: A New Spin on Energy Storage

A friend of mine recently installed solar panels on his roof to generate electricity. They were quite expensive, but my friend considers it an investment that will pay for itself in lower electricity bills over a period of decades. Of course, the panels generate electricity only when the sun is shining. The house is still connected to the electrical grid just like every other house in the neighborhood, but in such a way that it uses electricity from the grid only when the demand is greater than the output from the solar panels. When the panels are producing more electricity than is being used, the electric meter spins backward, and the electric company effectively buys the excess power. So if there were a power outage, the house would have electricity only during the day.

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Date Of Record Release 2010-02-17 16:33:15
Description A friend of mine recently installed solar panels on his roof to generate electricity. They were quite expensive, but my friend considers it an investment that will pay for itself in lower electricity bills over a period of decades. Of course, the panels generate electricity only when the sun is shining. The house is still connected to the electrical grid just like every other house in the neighborhood, but in such a way that it uses electricity from the grid only when the demand is greater than the output from the solar panels. When the panels are producing more electricity than is being used, the electric meter spins backward, and the electric company effectively buys the excess power. So if there were a power outage, the house would have electricity only during the day.
Classification
Resource Type
Format
Subject
Source Interesting Thing of the Day
Keyword Solar panels, Electricity, Flywheels
Selector Selection Committee
Date Of Record Creation 2010-02-17 16:22:04
Education Level
Date Last Modified 2010-02-17 16:33:15
Language English
Date Record Checked: 2010-02-17 00:00:00 (W3C-DTF)

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