Distributed energy storage is the concept of storing excess electricity that is produced during off-peak hours (as is common from solar and wind) and then using it during peak hours when demand for electricity is much higher.

Batteries are the most common method of storing energy and they are becoming less expensive over time. There are also other methods that are most often used commercially, such as pumped hydropower systems. Storing energy for future use saves money and reduces peak demand which reduces grid stresses and makes domestic renewable energy far more effective.

 

Resources:

Project Drawdown

Energy Policy Institute at the University of Chicago

Energy Storage Association