All Energy
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Tesla Model S electric zaps the competition
Praise pours in for the Tesla Model S, a costly car that uses no gas.
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Why your phone's battery life is (still) underwhelming
Smart phone processors and download speeds are many times faster than just a few years ago. So why hasn't battery life made similar leaps?
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Hybrid cars 101: How long should batteries last?
Owners complain that some hybrid-car batteries conk out early. What is the lifespan of a hybrid battery?
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Electric cars 101: What does MPGe mean, exactly?
Electric and dual-fuel cars need a new calculation: MPGe. But the EPA's new measurement doesn't tell the whole story.
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Tidal turbines: New sparks of hope for green energy from beneath the waves
After decades of abandoned plans and crushed prototypes, tidal powers finds new footing off the shores of Eastport, Maine.
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The great electric car race of 2010
This year, more automakers will roll out electric cars to American roadways.
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No more power lines?
Buried super-cooled electrical cables may replace towering transmission lines and carry solar and wind energy efficiently over long distances.
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Wind energy industry looks to Copenhagen for a mandate
In an interview, Denise Bode, CEO of the American Wind Energy Association, says the industry needs a renewable energy mandate from the climate conference in Copenhagen and from Congress.
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The hidden costs of fossil fuels - and biofuels, too
The 'hidden' costs of burning fossil fuels and biofuels aren't factored into their market prices, but someone has to pay them.
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Leasing the sun
Discount deals and tax incentives help homeowners go solar,
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Solar-hydrogen house in Florida combines new, old
It may look like an out-of-place throwback, but the Off-Grid, Zero Emissions Building has a futuristic purpose.
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Developing world's energy needs set stage for fight
Developing nations' urgent need for more energy has become a central issue this year as developed countries push for a global reduction in carbon emissions.
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A major price drop for solar panels
Solar power has suddenly become more affordable.
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Earth Talk: Compare costs of alternative energy
Is it better to go with your utility's renewable power option or install your own solar or wind power?
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Earth Talk: Sizing up oil shale as a possible resource
Energy source or more trouble for the environment?
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Sunrise for solar heat power
Four technologies aim to use heat from the sun to make electricity. But which one has the edge?
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From nets to kilowatts
Recycling program turns an environmental hazard into electricity.
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How Baoding, China, becomes world’s first ‘carbon positive’ city
The mayor goes on a crusade to make it a hub of renewable energy.
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China's green leap forward
Facing dire pollution and wanting to be in on what may be the next industrial revolution, China positions itself to be a leader in green technology – with major implications for the rest of the world.
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Earth Talk: Community-wide solar cuts costs
Collective solar groups help entire neighborhoods use clean energy.
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