Energy

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Better Batteries Charge Up: By Tyler Hamilton | 08/05/2008 | 45 Comments; A startup reports progress on a battery that stores more energy than lithium-ion ones.

A Cool Fuel Cell: By Kevin Bullis | 08/04/2008 | 17 Comments; A novel low-temperature electrolyte could make solid-oxide fuel cells more practical.

Solar-Power Breakthrough: By Kevin Bullis | 07/31/2008 | 69 Comments; Researchers have found a cheap and easy way to store the energy made by solar power.

Tidal Power Comes to Market: By Brittany Sauser | 07/29/2008 | 13 Comments; A large-scale tidal-power unit has started up in Northern Ireland.

Cheaper White-Light LEDs: By Lauren Rugani | 07/29/2008 | 3 Comments; Replacing sapphire with silicon could lead to more-affordable LEDs.

Boosting Cellulosic Biofuels: By Duncan Graham-Rowe | 07/28/2008 | 4 Comments; A catalytic process could improve thermochemical routes to ethanol.

More-Efficient Thermoelectrics: By Kevin Bullis | 07/24/2008 | 32 Comments; An advance makes the conversion of heat to electricity practical.

Solar Sailing in Space: By Brittany Sauser | 07/24/2008 | 25 Comments; NASA prepares to test a satellite that can be propelled by light particles from the sun.

A Concrete Fix to Global Warming: By Tyler Hamilton | 07/23/2008 | 7 Comments; A new process stores carbon dioxide in precast concrete.

More-Efficient OLED Lighting: By Lee Bruno | 07/23/2008 | 7 Comments; Researchers have found a way to boost light from OLEDs.

Does Car-Mounted Solar Make Sense?: By Peter Fairley | 07/14/2008 | 33 Comments; Researchers consider plug-in hybrids charged by stationary solar arrays a better bet.

Energy from Waves: By Prachi Patel-Predd | 07/14/2008 | 3 Comments; New technology could provide a way to harness wave energy.

A Better Solar Collector: By Kevin Bullis | 07/10/2008 | 23 Comments; A more efficient way to concentrate sunlight could reduce the cost of producing solar power.

Garbage In, Megawatts Out: By Peter Fairley | 07/02/2008 | 13 Comments; Ottawa will build the first gasification facility in North America to make energy from waste.

John McCain, Battery Booster: By Lauren Rugani | 06/25/2008 | 33 Comments; The senator's proposed $300 million prize for an electric-car battery prompts excitement, skepticism.

Jul • Aug Issue
Cheaper Solar Power: By TR Editors | 1 Comment

Ethanol's Forecast: By Kevin Bullis | 06/12/2008 | 14 Comments; Rain and floods in the corn-growing Midwest could drive up the costs of producing the biofuel.

Wind Power Moves into Deep Waters: By Peter Fairley | 06/04/2008 | 15 Comments; A floating wind turbine is planned for 10 kilometers off Norway.

Cellulosic Ethanol Plant Opens: By Kevin Bullis | 05/28/2008 | 21 Comments; A 1.4 million gallon demonstration-scale plant will use waste biomass to make biofuel.

More-Powerful Fuel Cells: By Katherine Bourzac | 05/22/2008 | 3 Comments; A cheap polymer material increases the power output of methanol fuel cells by 50 percent.

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Energy Videos

Fuel-Cell Power-Up
November/December 2008
MIT professor of chemical engineering Paula Hammond explains the difference between fuel cells and batteries, how a fuel cell works, and why a methanol fuel cell in particular is useful. Through her work, she brings methanol fuel cells closer to use in practical applications, such as powering cell phones and laptops.
(7min 03sec)