Startup Engineers See-Through Solar Cells
A spectrally selective approach could let tablets, e-readers, and windows turn light into power.
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Coal Demand Falls in the U.S., Rises Everywhere Else
Cheap natural gas means U.S. electricity producers are buying less coal. But the rest of the world is buying more.
New Method Could Cheaply Convert Natural Gas to Chemicals
A ceramic membrane could unlock the potential of methane-conversion catalysts and help make use of natural gas that currently goes to waste.
Musk Says Tesla Will Pay Off Its Loans in Half the Time
Tesla’s CEO claims the company is a success, and partially credits the DOE loan program.
What ARPA-E Can’t Do
The Advanced Research Projects Agency for Energy is highly popular, but its impact so far has been minuscule.
Carbon Cleanup
Acting to solve our climate problem will take big investment and a strategic approach, says Jane Long.
Energy R&D Faces a Cliff
Obama is calling for a doubling of energy R&D funding, but where will he find the money?
How Nest’s Control Freaks Reinvented the Thermostat
Two men who created the iPod and iPhone founded Nest and injected new technology into the humble thermostat. Now they have their sights on the rest of your house.
Ambri’s Better Grid Battery
A tiny startup called Ambri wants to transform our energy system with massive liquid-metal batteries.
A Cheap and Easy Plan to Stop Global Warming
Intentionally engineering Earth’s atmosphere to offset rising temperatures could be far more doable than you imagine, says David Keith. But is it a good idea?
