Variability of electrical output from wind turbines could pose a challenge in supply reliability if wind power is the only source of electricity. Using electricity from wind turbines to produce and store hydrogen can compensate for the intermittency of renewable energy sources (RESs).
Wind farms only generate electricity when the wind is blowing, thereby creating the need for back-up generation. Hydrogen plays a key role in storing the power from excess electricity and can be produced by linking wind turbines to electrolysers that split water into its components. After being stored, hydrogen can be used later to generate electricity from a fuel cell.
Further details: Hydrogen production from wind power