A growing number of companies believe using tethered kites and drones is a viable way to harness the stronger and more consistent high-altitude winds. Could this tech release wind power’s full potential, or will it always remain a niche solution?

Wind power generated five times more electricity in 2018 than in 2008, according to recent figures from the US Energy Information Administration.

Yet it still only accounts for about 4% of the world’s electricity.

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