Interactions between hundreds of wind turbines make power output difficult to predict.
First Solar’s strong finances are helping fund innovation and drive down the cost of solar power.
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.
A Caltech researcher thinks arrays of tiny wind turbines could produce cheaper power than big ones.
Tesla’s innovations in batteries give it an edge that Fisker, focused on design, lacks.
Energ2’s nanostructured carbon anodes can boost lithium-ion battery capacity by 30 percent.
With no one buying new equipment, solar companies are looking to make the best of existing technology.
Underground rocks that react with carbon dioxide to form minerals could offer a safe way to keep the greenhouse gas from reaching the atmosphere.
Small reactors have some benefits, but they won’t make nuclear as cheap as natural gas.
With security, reliability, and legal issues yet to be resolved, the first self-driving vehicles will perform only specific tasks.