Solar energy and biofuels are introduced as future alternative sources of energy. The National Renewable Energy Laboratory has made it their mission to make these alternatives more efficient and competitive with the use of fossil fuels....

Explore our reliance on oil and the need for alternative energy sources. Oil shale, a sedimentary rock product that can be processed into crude oil, is offered as a possible step toward a completely renewable future. This is a...

The potential of using algae to produce biofuel is briefly commemorated in this video. Perhaps you could assign collaborative groups different forms of renewable energy and have them research and create a media presentation to share with...

Delve into the practical basics of solar energy. This video opens with a short explanation of photovoltaic cells and how they convert solar energy into usable electricity. Actual footage of photovoltaic cell installation and computer...

The oceans are a source of renewable energy. Tidal energy, wave energy, thermal energy and methane hydrates are all described in this animation.

Maxwell von Stein, a 22-year-old graduate of The Cooper Union, built bicycle that uses a flywheel to store energy. Instead of braking, Max can transfer energy from the wheel to the flywheel, which spins between the crossbars. The...

The Sun is a reliable energy source that we can harness and convert into electricity in several ways. So why are renewable and clean solar energy systems not used more widely? [3:00]

Paul Andersen discusses the technology, advantages and disadvantages of six sources of renewable energy; biomass, hydroelectric, solar, geothermal wind, and hydrogen. He also explains how changes in the storage and flow of energy in our...

Adam Katzman, the inventor and builder of the toilet-boat, says it's meant to be more inspirational than practical. "Poop and Paddle" demonstrates how sewage and rainwater can be converted to cattails and clean water. [4:02]

After pedaling for hours, Adam discovers there's a difference between the power you use and the power your body can generate. [3:41]

Learn how the sun can be used as a reliable renewable energy source in this video. Video explores how electricity can be harvested from the sun energy! [3:01]

Do you know the properties of a renewable energy source? This video discusses renewable energy and why they might be the answer to a sustainable future. [2:44]

Looking to get energy from the sun? We'll hear about a new retail store for solar energy enthusiasts opening in Pennsylvania.

Ira goes for a spin in Nissan's upcoming electric car.

Two projects aim to use innovative technology to turn renewable energy into power.

This week, Secretary of the Interior Ken Salazar approved the long-embattled Cape Wind offshore wind power project. We'll talk about the decision, and what it means for other renewable power projects in the country.

We'll get the latest on solar and wind power projects in the US. What can be learned from the European renewable energy industry?

Solar power is often offered as one of the most promising forms of renewable energy. But how close is solar power to becoming a major player in energy production?

Researchers explore ways to harvest energy from the motion of the ocean.

A New Jersey company transforms plastic waste into beams sturdy enough to support tanks and trains.

A generator that makes electricity from wave power is being prepared for installation off the Oregon coast.

One of the founding fathers of Earth Day talks about sustainability and his push for renewable energy.

A paper finds wind energy could provide hundreds of terawatts, if enough turbines are installed.

The plan identifies 285,000 acres of public land in six Western states for solar energy projects.