Answer: The correct answer is-
hydrogen fuel cells.
Hydrogen fuel cells are used for production of electricity whenever it is required. It is an electrochemical cell that is used to generate electricity when it is supplied with hydrogen and oxygen, which together drain as water and generate electricity.
Renewable energy sources are those that can be replenished or renewed naturally ( such as wind power, solar energy, geothermal energy). In other words, these sources of energy never run off.
Hydrogen fuel can be produced by means of renewable energy sources such as wind or solar energy.
Thus, hydrogen fuel cells do not come under non renewable energy resources.
