Power storage is a key complement to effective deployment of renewable energy generation.
It is a fact of life that solar energy is generated most abundantly in the summer, and exclusively during daylight hours. Similarly, wind turbines generate energy when the wind blows most actively.
Unfortunately, when the energy is actually required may be at a great variance from when it is produced.
Effective, efficient and economical energy storage is an increasingly central aspect of the renewable energy mix, and energy generation more generally.