Ultra-Efficient Solar Power
Doubling the efficiency of solar devices would completely change the economics of renewable energy. Here is a design that just might make it possible.
Energy
The Enduring Technology of Coal
Despite the need to reduce carbon dioxide emissions, the burning of coal has only been accelerating.
Novel Heating System Could Improve Electric Car’s Range
A prototype system can heat and cool without draining battery power.
Renewables Can’t Keep Up with the Growth in Coal Use Worldwide
An International Energy Agency report calls for more research, carbon price, to help renewables compete.
Better Computer Models Needed for Mega Wind Farms
Interactions between hundreds of wind turbines make power output difficult to predict.
First Solar Shines as the Solar Industry Falters
First Solar’s strong finances are helping fund innovation and drive down the cost of solar power.
Climate Change: The Moral Choices
The effects of global warming will persist for hundreds of years. What are our responsibilities and duties today to help safeguard the distant future? That is the question ethicists are now asking.
Will Vertical Turbines Make More of the Wind?
A Caltech researcher thinks arrays of tiny wind turbines could produce cheaper power than big ones.
Why Tesla Survived and Fisker Won’t
Tesla’s innovations in batteries give it an edge that Fisker, focused on design, lacks.
Designer Carbon Provides Longer Battery Life
Energ2’s nanostructured carbon anodes can boost lithium-ion battery capacity by 30 percent.
