Renewable energy generation with kites and drones

Airborne Wind Energy Systems (AWES) are a new kind of technology to harvest wind energy. The expensive and heavy tower and rotor of a conventional wind turbine are replaced by a light tether and an aircraft (flexible giant ...

How climate impacts solar and wind power supply

One of the challenges with solar and wind power is that, on any given day, the sun isn't always shining, and the wind isn't always blowing when we want it to. Now, zooming out, researchers at Columbia's Earth Institute have ...

Battery system for wind turbines to stabilize electricity prices

The problem with wind turbines is that they produce electricity "as the wind blows." When there are high winds, production increases and the price of electricity falls; when the wind tapers off, production decreases and the ...

Predicting the magnetic properties of materials

Permanent magnets used in electric cars and wind turbines currently contain rare earth metals. Reducing the amount of these elements in magnets is important, as mining them is harmful both to health and the environment. Researchers ...

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