Technology news

Tandem solar cells are more efficient

Stacking two solar cells one over the other has advantages: Because the energy is "harvested" in two stages, and overall the sunlight can be converted to electricity more efficiently. Empa researchers have come up with a ...

dateNov 23, 2015 in Energy & Green Tech
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Task force wants even smaller drones registered

An aviation industry task force is recommending that operators be required to register drones weighing as little as a half a pound, a threshold that could include some remote-controlled toys, industry officials said.

dateNov 21, 2015 in Other
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How solar panels are making waves

If you think of electrical current flowing like water from the grid to your home, you can start to imagine the waves your rooftop solar panels create when they try feeding current in the opposite direction.

dateNov 25, 2015 in Energy & Green Tech
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