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dark energy

Smart-grid 'stockbrokers' to manage your power

Technology

Smart-grid 'stockbrokers' to manage your power

Software agents that get the best price by buying and selling electricity on your behalf could increase grid efficiency and help you cut costs

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Solar energy spars with spiritual lands in California

Earth

Solar energy spars with spiritual lands in California

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Technology

Magnetic 'battery' to report on century-old nuke waste

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Power of cool: Liquid air to store clean energy

Earth

Power of cool: Liquid air to store clean energy

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Technology

Nuclear agency plans for futuristic waste option

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A blue-green revolution: Upgrading photosynthesis

Earth

A blue-green revolution: Upgrading photosynthesis

Features

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Technology

Cellphone signals get personal to save power

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Earth

Green Machine: Fill up your car with hydrogen beads

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Earth

Efficiency could cut world energy use over 70 per cent

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Cooperative cellphone networks could cut energy waste

Technology

Cooperative cellphone networks could cut energy waste

By sharing antennas, cellphone companies could save big on energy bills and carbon footprints. But can they stop competing long enough to get along?

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Earth

Christmas trees could make a great green fuel

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Earth

2011 preview: Charge of the electric car

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Earth

Is night falling on classic solar panels?

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Earth

Sun and sand breed Sahara solar power

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