Solar energy is derived ultimately from the sun. It can be divided into direct and indirect categories. Most energy sources on Earth are forms of i...

The word 'sustainability' is frequently misunderstood because there are numerous definitions of sustainability and not even two definitions have co...

The Obama Administration believes strongly that the United States must lead the clean energy economy of the 21st century. When more of our electric...

Recent technological developments have led to an increase in the domestic supply of natural gas. As a result, there is interest among some parties ...

This book examines 2011 trends in the U.S. "voluntary" markets - those in which consumers and institutions purchase renewable energy to match their...

Shale gas is natural gas that is tightly locked within low permeability sedimentary rock. Recent technological advances are making shale gas reserv...

The great amount of wind power recently connected to electric power systems makes necessary new grid analysis tools and control strategies. Some of...

Rising energy prices and concern over greenhouse gas emissions have focused congressional attention on energy alternatives, including wind power. A...

A wind turbine is a rotating machine which converts the kinetic energy in wind into mechanical energy. World-wide interest in renewable energy syst...

A joint EERE-PI project was completed to estimate the world-wide potential to produce and transport ethanol and other biofuels, with an emphasis on...