As part of the climate and weather, wind is always blowing somewhere. It can be harnessed for energy.
The force of the wind can be transformed into electricity, providing a reliable source of renewable energy - when the sun isn't shining. But development of wind power faces many challenges, least among them the size of required infrastructure.
The world is in the middle of a renewable energy revolution. Prices for clean energy systems are plummeting and investments in renewables are reaching record highs. But there's still a major hurdle to the large-scale adoption of green power around the world. The batteries needed to store the intermittent energy from renewables – such as solar and wind – are still too costly.