The American Council for an Energy-Efficient Economy ranked Germany first and Mexico last in a rating of major economies and energy efficiency.
Experts say El Hierro is expected to become the first island in the world to get all its electricity from wind and water power without assistance from any outside power grid.
University of Cincinnati researchers have designed technology that channels sunlight to dark interior rooms through grids of tiny adjustable cells. The energy can also be stored to power electrical systems.
Researchers used zinc oxide nanorods to create a solar cell, then played music to determine the sound waves' effect on performance. Pop and rock music bumped up efficiency levels by 40 percent.
Engineer Alex Hornstein is the creator of Tiny Pipes, a system that's turned out to be a bargain for residents of one off-the-grid Philippine island.
If new research from Spain can be further developed into a viable model, it could mean great things for tobacco growers worried about the future of their business.
The planned replacement of the city's famous gas-powered streetlamps with more efficient LED versions is being met with swift objections from locals as well as the World Monument Fund, which put them on its watch list this month.
New York-based startup HEVO Power is working with New York University to develop stations that will resemble parking spots with manhole covers. They will enable charging without the need for a plug.
Last month, scientists conducting experiments at the National Ignition Facility witnessed, for the first time ever, a fusion reaction that produced more energy than it consumed. It's a significant milestone towards a long-sought-after goal.
Cree's version is the first to pass California standards for performance and cost and, hopefully, the average consumer's standards for appearance.
The microbes and enzymes in pandas' digestive systems have a unique ability to break down plant waste. Collecting it from the animals' feces could lead to faster and cheaper biofuel production.
The newly discovered aquifers contain an estimated 250 billion cubic liters of water and could change the lives of the people living in Turkana, one of the country's driest and poorest regions.
Devices that take advantage of a revolutionary new solar energy technology could provide medical professionals in developing countries with a reliable means of sanitation.
Carnegie Mellon researchers sent postcards to utility customers telling them their electricity usage was being observed for one month. Within that time period, consumption fell by an average of 2.7 percent.
The Ohio city had never experienced an earthquake before the 2010 opening of a wastewater injection well. All 109 earthquakes that occurred in the ensuing 12 months now appear to be linked to the well, says a new study.