Wind and solar energy both require energy storage

How do solar and wind power systems work?

Solar and wind facilities use the energy stored in batteries to reduce power fluctuations and increase reliability to deliver on-demand power. Battery storage systems bank excess energy when demand is low and release it when demand is high, to ensure a steady supply of energy to millions of homes and businesses.

Why do we need dedicated energy storage?

The fact that “the wind doesn’t always blow, and the sun doesn’t always shine” is often used to suggest the need for dedicated energy storage to handle fluctuations in wind and solar production. Dedicated energy storage ignores the realities of both grid operation and the performance of a large, spatially diverse renewable energy source.

How is energy stored?

Mechanical Energy Storage: Energy is stored through mechanical means, such as compressing air or using flywheels. Compressed Air Energy Storage (CAES) and flywheels are examples of this technology. Hydrogen Storage: Surplus electricity is used to produce hydrogen through electrolysis.

Why do we need energy storage systems?

This capability is essential for maintaining grid stability and ensuring a consistent energy supply, even when renewable generation is low. As the CFR states, the deployment of energy storage systems is crucial for achieving a green energy transition and meeting global climate targets.