Theoretically, the maximum efficiency of today's silicon solar cell is approximately 31 percent, because much of the solar energy that hits the cell is lost as heat.
Black silicon has been bubbling in the background of solar research and development the past couple of years, hinting at a way to drive down the cost of solar power, but has yet to bust out.
The EU signed Kyoto in 1997, and passed laws to lower emissions by 2005. Five years later it had double the wind power of the US, and ten times the solar power.
Way back in 2009, when the Tesla S electric sedan was a concept living only on sketches and engineering notes, the company promised the car would retail for $49,900 following federal tax credits.
In 1894, German engineers Heinrich and Wilhelm Hidebrand gave the world its first production internal combustion powered motorcycle, the Hildebrand & Wolfmüller Motorrad.
The oceans and their beaches are now home to vast numbers of tiny pieces of plastic - and the source may be your washing machine, researchers say.
Researchers at the University of Notre Dame have developed a 'solar paint' that could be slapped on the outside of a house to help generate power for the devices inside.
We've covered a few promising hybrid solar photovoltaic/solar thermal heating systems in the past.
It’s been what seems a long time in coming, but Ford recently pulled the wraps off its brand new electric vehicle, (EV) the Focus Electric.
Google's continuing to pump money into clean energy, investing $94 million in four solar photovoltaic facilities near Sacramento.
A renewable energy-powered work space in which renewables aren't part of the building infrastructure?
By 2100, nearly 40 percent of land-based ecosystems - forest, grassland or tundra, for example - will have moved from one type to another.
By harvesting waste heat, researchers from the US Department of Energy’s National Renewable Energy Laboratory (NREL) have for the first time built a solar cell with an external quantum efficiency over 100 percent.
Looking for an easy way to burn less gas and cut down on carbon emissions while driving - without shelling out for a more energy efficient vehicle?
The U.S. Department of Defense (DoD) has to obtain at least 25 percent of its energy from renewable sources by 2025.
Swiss automaker Rinspeed has, in the past, offered some concept cars that could only be described as "interesting."
Tis the season of peace on Earth and goodwill to all men - and Greenpeace and Facebook have finally laid down their cudgels and made friends.
Progressives have never been very good about admitting - let alone claiming - victory.
If you love eating sushi, but worry about high mercury levels in fish, there is a new app that can help.
Consumer demand for electric and hybrid vehicles is ripe around the globe.