For most of the past half century, the arc of energy efficiency bent toward savings. Once Congress passed the nation’s landmark energy-saving law, the Energy Policy and Conservation Act of 1975, ...

Two-thirds of the world’s energy is wasted. Energy efficiency opens up immense opportunities for growth, energy security, and the environment. Energy efficiency is a key element of the World Bank ...

After more than a decade of trying, New Hampshire is on the verge of adopting a powerful new tool that will help unlock a wide array of measures that will save energy, save money and reduce carbon ...

Researchers at Princeton Plasma Physics Laboratory found a way to make plasma heating more efficient for fusion. By slightly angling a Faraday screen near the plasma antenna, they stopped unwanted ...