When it arrives to renewables, the huge issue is: How do we retailer all that vitality for use afterwards on? Simply because such vitality is intermittent in character, storing it when there is a surplus is important to ensuring a constant supply—for rainy times (practically), at night time, or when the wind doesn’t blow.
Using today’s lithium-ion batteries for very long-phrase grid storage isn’t possible for a range of causes. For example, they have fixed cost capacities and never maintain cost properly more than extended intervals of time.
The option, some propose, is to retailer vitality chemically—in the form of hydrogen fuel—rather than electrically. This entails employing products referred to as electrolyzers that make use of renewable vitality to break up h2o into hydrogen and oxygen gasoline.