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Households significantly reduce electricity use when prices rise

A study found that households in California reduced their electricity use by 13% when prices rose, but returned to previous levels once prices fell. Public informational campaigns also played a significant role in conserving energy, with households reducing their use by an additional 7%.

SourceWiley·JournalThe RAND Journal of Economics·DateOct 29, 2008

Cow power could generate electricity for millions

Converting livestock manure into biogas can produce enough electricity to meet up to 3% of North America's energy needs and reduce greenhouse gas emissions. The process has the potential to generate 100 billion kilowatt hours of electricity, equivalent to powering millions of homes.

SourceIOP Publishing·JournalEnvironmental Research Letters·DateJul 24, 2008

Memory in artificial atoms

Scientists at University of Copenhagen develop carbon nanotube transistors that can function as magnetic memories. The discovery demonstrates direct electrical control over a single electron spin, opening doors to new data storage possibilities.

SourceUniversity of Copenhagen·JournalNature Physics·DateApr 7, 2008

Solar cells of the future

Researchers at University of Copenhagen have discovered a new material that can convert up to 30% of solar energy into electricity, twice the current conversion rate. The use of nanotechnology reduces production costs and minimizes energy loss in solar cell transportation.

SourceUniversity of Copenhagen·JournalNature Nanotechnology·DateDec 18, 2007

Atoms looser than expected

Scientists at Harvard University have recalculated the fine structure constant, a fundamental force that governs the electromagnetic interaction between charged particles. The new value suggests that atoms are slightly looser than previously thought, with an improved measurement accuracy of six times better.

SourceAmerican Physical Society·JournalPhysical Review Letters·DateAug 15, 2006

A new twist on power walking

Researchers have invented a backpack that converts mechanical energy from walking into electricity, generating up to 7.4 Watts of power. The Suspended-load Backpack can power various devices simultaneously, reducing the need for heavy replacement batteries.

SourceMarine Biological Laboratory·JournalScience·DateSep 8, 2005

Wastewater could treat itself, power city

Researchers at U of T found that municipal wastewater contains enough organic material to generate significant amounts of electricity. By using anaerobic digestion instead of aerobic treatment, wastewater treatment plants could produce enough electricity for their own operations and potentially export excess energy to the grid.

SourceUniversity of Toronto·JournalJournal of Energy Engineering·DateSep 20, 2004

Let water power your cell phone?

University of Alberta engineers have created a new source of clean, non-polluting electric power using tap water and microchannels. The technology has vast potential for powering small devices and could rival wind and solar power in the future.

SourceUniversity of Alberta·JournalJournal of Micromechanics and Microengineering·DateOct 19, 2003