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Alternative Power Sources

This Just In
Mar 1, 2015 08:00 AM ET // Tracy Staedter
Alternative power, from sunlight to human muscle tops out this week's gallery.
Feb 27, 2015 01:58 PM ET // Glenn McDonald
Battery-powered engine-and-prop unit can drop into water with a range of 32 miles.
Feb 26, 2015 04:22 PM ET // Tracy Staedter
The modern-day windmill is part energy icon, part tourist attraction and part residential building.
Feb 13, 2015 10:05 AM ET // Tracy Staedter
Cloud Cast emits a cool mist over individual humans, instead of cooling an entire plaza.
Feb 9, 2015 12:00 PM ET // AFP
Glass-paneled walls filled with water absorb heat during hot spells and distribute it during cold snaps.
Feb 1, 2015 12:21 PM ET // Stephanie Pappas, LiveScience
Massachusetts wins top marks for energy efficiency in an energy contest between the Patriots and Seahawks.
Jan 30, 2015 01:25 PM ET // Tracy Staedter
The by-product is clean water and electricity.
Jan 28, 2015 03:45 PM ET // Discovery News
Hydrogen, the most common element in the universe, is taking big steps forward as a clean fuel source. Here are some facts about the ubiquitous gas.
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