Showing posts with label electrical power. Show all posts
Showing posts with label electrical power. Show all posts

Thursday, May 17, 2007

The Incredible Hybrid Solar Home--Enertia House


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This house heats and cools itself bringing benefits to the homeowner and the environment. The Enertia House can make more energy than it uses! The house won the grand prize from the History Channel and the National Inventors Hall of Fame (first out of 25,000 entries).

From the Enertia website:

Q. WHAT IS Enertia?

A. Enertia is energy made useful by a shift-in-Time. In the 1980's Architectural Inventor Michael Sykes coined the term "Enertia®" for the useful energy that can be captured from thermal, rotational, or electrical inertia. Using inertia, 80% of world energy needs can be met with a simple shift-in-Time. Summer thermal buildup can be shifted to fill Winter thermal needs. Daytime solar gain to fill night-time needs. Downhill inertial gain to uphill power draw. No fuel or pollution is involved. Devices from flywheels to funicular railroads use "Enertia®". Inertia can multiply the usefulness of solar, geothermal, or even fossil-fuel energy. Enertia® is the energy, and inertia is the catalyst for it. Because inertia can move energy from a time when it is "useless" to a time when it is "useful," the resulting Enertia® is, literally, energy from the fourth dimension - Time.

Read about hybrid solar houses and designs.

Read about the
Science behing the house.

Read about
ENVIROMENTAL SUSTAINABLE ARCHITECTURE

Home Page of
Enertia the Grand Prize winner.







Tuesday, May 1, 2007

Photovoltaics (defined)


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Photovoltaics, or PV for short, is a technology in which light is converted into electrical power. It is best known as a method for generating solar power by using solar cells or solar photovoltaic arrays to convert energy from the sun into electricity.


Photovoltaic technology converts sunlight directly into electricity. It works any time the sun is shining, but more electricity will be produced when the light is more intense (a sunny day) and is striking the PV modules directly (when the rays of sunlight are perpendicular to the PV modules). Unlike solar systems for heating water, which you might be more familiar with, Photovoltaic technology does not use the sun's heat to make electricity. Instead, PV produces electricity directly from the electrons freed by the interaction of sunlight with semiconductor materials in the PV cells.