When it comes to renewables, the major question is: How do we retail store all that energy for use afterwards on? Because this kind of energy is intermittent in mother nature, storing it when there is a surplus is critical to ensuring a continuous supply—for rainy days (virtually), at night, or when the wind does not blow.
Working with today’s lithium-ion batteries for extensive-time period grid storage isn’t feasible for a range of causes. For instance, they have mounted charge capacities and do not keep charge properly around extended durations of time.
The answer, some propose, is to retail store energy chemically—in the kind of hydrogen fuel—rather than electrically. This involves applying equipment known as electrolyzers that make use of renewable energy to break up drinking water into hydrogen and oxygen gasoline.