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Sun Volt Solar

earth, the final frontier

Clean Energy, Clean Environment

We are at a cross roads in human history, we can choose to continue on as we have been, or we can make a change to improve our future and quite possibly the future for several generations to come. We are here to promote energy independence, a better environment, a secure future and a higher return on investment for your hard earned dollar. It is what I believe in, it is why I am in the solar business.

This is Solar Power, Part I

06 Jul 09 | Commentary, wind power

A review off all the energy systems powered by our sun, either directly or indirectly.

Part I: Wind Energy

Wind Energy is derived from the sun due to uneven heating of the earth’s surface.  This creates pressure gradients.  Because nature abhors a vacuum, air from high pressure areas moves toward areas of lower pressure.  From Wikipedia:

It is estimated that the total amount of economically extractable power available from the wind is more than present human power use from all sources.[12] An estimated 72 TW of wind power on the Earth potentially can be commercially viable,[13] compared to about 15 TW average global power consumption from all sources in 2005

Renewable: Yes
Environmental impact: Moderate
EIER: Moderate to high
Cost: Moderate
Maintenance cost: Moderate

Here are two videos of wind turbines in Portsmouth, RI.  These units are located about 2 miles apart, one was installed in 2005, the other in 2009.  The wind at ground level was low, but you would not know it watching these things turn:

Portsmouth Abbey, Vestas V-47 660 KW

Portsmouth High School, AAER A-1000S 1 MW:

The Vestas unit turns faster and is a little louder. They both look really cool, however, and both schools are saving a lot of money.

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06 Jul 09 | Commentary, wind power
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Reader's Comments

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