Energy

Better Batteries for Grid-Scale Energy Storage

Molten sodium batteries have been used for many years to store energy from renewable sources, such as solar panels and wind turbines. However, commercially available molten sodium-sulfur...

More Efficient Electricity Distribution Thanks to New Insulation Material

If we are to transition to a world powered by renewable energy, efficient long-distance transport of electricity is essential, since the supply — renewable...

Rain Power: Droplet-Based Energy Generator Lights Up 100 LEDs

An energy breakthrough from the City University of Hong Kong finds power in a single drop of water – up to 140 volts, in fact.

Device Creates Electricity from Snowfall

The nanogenerator also acts as a weather station.

Ultra-Thin Layers of Rust Generate Electricity from Flowing Water

When combined with saltwater, rust can be a source of electricity.

Create the Future: Water Desalination, Powered by Waves

Inventor Olivier Ceberio found a new way to turn ocean waves into fresh water.

How to Generate Electricity — From Rust

Scientists from Caltech and Northwestern University have found a way to generate electricity by combining saltwater with one of life's more undesirable compounds: rust.

Atlas Maps Renewable Energy Resources

A new geospatial application developed by the DOE’s National Renewable Energy Laboratory (NREL) allows users to map potential renewable energy resources in the United States. The interactive tool is...

Online Database for Tidal Energy Resources

The DOE and Georgia Institute of Technology offer a new database highlighting the energy potential available in the U.S. from ocean tides. This online database is an important step towards providing...

Mechanical Extraction of Power From Ocean Currents and Tides

NASA’s Jet Propulsion Laboratory has proposed a scheme for generating electric power from rivers and from ocean currents, tides, and waves that not entail the high maintenance...

Using Aerospace Approach, Engineers Design Wave Energy System

Aerospace engineers from the U.S. Air Force Academy are applying the principles that keep airplanes aloft to create a new wave energy system that is durable, efficient, and can...

Harvesting Energy from Regular, Day-to-Day Motions

Duke University engineers have developed a novel approach that they believe can more efficiently harvest electricity from the motions of everyday life. Although motion is an abundant...

$32 Million Initiative to Expand Hydropower

U.S. Department of Energy Secretary Steven Chu announced up to $32 million in Recovery Act funding, which is designed to support the deployment of hydropower turbines and control technologies to...

Virtually Engineering Energy Conversion Plants

Photovoltaic and wind energy plants, hydroelectric power stations, and biogas plants can be complex to design and maintain. In designing a hydroelectric power station, an engineer needs to...

Advancing Technologies Harness the Power of Wind, Water, and the Sun

Renewable energy will be the world’s fastest-growing source of electricity generation over the next two decades, although it will still make up a relatively minor portion...

NASA Energy Concept Could Harness the Power of Ocean Waves

NASA Jet Propulsion Laboratory (JPL) researchers who developed a new way to power robotic underwater vehicles believe a spin-off technology could help convert ocean energy into...

30 Years of Power & Energy

In celebration of the 30th Anniversary of NASA Tech Briefs, our features in 2006 highlight a different technology category each month, tracing the past 30 years of the technology, and continuing with a glimpse into...