Harnessing the swift tides of the Pentland Firth, a waterway along Scotland’s Northern coast, could generate enough electricity to meet half of the country’s needs.

Energy Innovation

Is Scotland the “Saudi Arabia” of Tidal Power?

The Pentland Firth, a seaway along Scotland's Northern coast, could generate enough electricity to meet half of the country's needs, new research finds

Fueling the trip to the exoplanet Gliese 667Cd, discovered earlier this week, would be one of humankind’s greatest challenges to date. Above is an artist’s rendering of a view from the planet.

Powering the 21st Century

Can We Power a Space Mission To An Exoplanet?

Ion engines, solar sails, antimatter rockets, nuclear fusion--several current and future technologies could someday help us fuel an interstellar journey


Energy Innovation

Document Deep Dive: The Patent for the First Practical Solar Cell

See how three scientists at Bell Laboratories in 1954 invented the silicon solar cell that became the model for converting sunlight into electricity today


Interactive: Mapping Renewable Energy Around the World

Which countries are leading the way in transitioning away from fossil fuels?

There's room for both fossil fuels and renewable sources in the United States' energy diet

We Don’t Have to Choose Between Fossil Fuels and Green Energy

In a new book, Michael Levi argues that betting on a single energy path will only lead to failure

The Hoover Dam generates about 4 billion kilowatt-hours of hydroelectric power each year, enough to power the lives of 1.3 million people.

Powering the 21st Century

Where to Take a Tour of the World’s Power Plants

From Nevada’s Hoover Dam to a geothermal plant next to an Icelandic volcano, these six power stations open their doors to visitors

Doug Fine

Doug Fine, Journalist, New Mexico

How an ambitious experiment in ecological living led to a goat pen


Hot Idea

Christina Galitsky's energy-efficient cookstove makes life a little easier for Darfur's refugees

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