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Most California incentive programs meant to reduce energy use have the opposite effect, shows...

The state of California spends about $1 billion per year on programs that subsidize the installation of energy-efficient appliances, from lightbulbs to whole-house retrofits. But...

Elon Musk: My view about Tesla competitors in the self-driving car market

The automotive industry is witnessing a rapid evolution of safety features, which is expected to increase exponentially in the coming years to provide a...

Reversible fuel cells could offer cheap energy storage

A major challenge for producers of electricity from solar panels and wind turbines is akin to capturing lightning in a bottle. Both solar and wind...

Cheaper solar cells could be soon on the market

Traditional solar cells are made from silicon, which has good efficiency and stability, but is relatively expensive to make and can only be manufactured...

Scientists reveal how lithium’s narrow paths limit batteries

If you could shrink enough for a fantastic voyage across a lithium battery electrode, you’d see the level of charge at every scale is...

New solar cells set world record efficiency: 24%

Scientists have developed a tandem solar cell that reaches 24 percent efficiency. This sets a new world record as the highest efficiency achieved so far...

This heat engine with no moving parts is as efficient as a steam turbine

Engineers at MIT and the National Renewable Energy Laboratory (NREL) have designed a heat engine with no moving parts. Their new demonstrations show that it...

This transistor could cut 5% from world’s digital energy budget

A new spin on one of the 20th century’s smallest but grandest inventions, the transistor, could help feed the world’s ever-growing appetite for digital...

Stanford researchers develop solar cells that could keep working at night

About 750 million people in the world do not have access to electricity at night. Solar cells provide power during the day, but saving energy...

These crystals could help computers run on less power

Researchers have created engineered crystal structures that display an unusual physical phenomenon known as negative capacitance. Incorporating this material into advanced silicon transistors could...