Tuesday, December 1st, 2015 - 9:53 pm 
(Arizona time)
Hoover Dam


Hydropower has been used for millennia in most countries of the world. Its longest application has been for use in mechanical tasks, such as grinding grain. With such simple mechanical devices as a "noria", it has also long been used to lift water. Within the last 100 years...

Geothermal Geyser

Geothermal Energy

Geothermal energy is, literally, the heat of the earth. The heat itself derives from radioactive decay beneath the earth's surface and, in certain locations, it is concentrated enough and is close enough to surface waters to be brought to the surface for a variety of purposes. When it is above...

Wind Turbine

Wind Power

Like hydropower, wind power has been used for centuries, to lift water, propel boats, grind grain. It is an attractive and non-polluting source for electricity. It has only been since the mid 1980s, however, that wind power has contributed appreciably...



This section in progress...

In the interim, visit this site for information: www1.eere.energy.gov/biomass/



This section in progress...

In the interim, visit this site for information: www1.eere.energy.gov/hydrogenandfuelcells/

AzSC Blog

Climate Change Politics Heats Up

In the Spring of 1987, Ray Harm sat on the veranda of his solar-powered ranch house on the edge of arroyo in Browns Canyon -- explaining climate change to me.

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