Energy storage technologies have the unique capabilities to keep the lights on when the power grid is under stress. In both Texas and California, energy storage technologies have prevented black outs during significant heatwaves—keeping people safe, power affordable, and the power on for businesses.
The operational life of an energy storage system is a tricky concept to define generally, but it typically refers to how long a system is able to operate before degradation prevents the system from safely and reliably performing its objectives.
Fast acting energy storage systems may perform dynamic grid services (like frequency regulation) better than conventional alternatives. Due to their inherently low inertia, some inverter based energy storage technologies are able to react quickly to control commands.
In both Texas and California, energy storage technologies have prevented black outs during significant heatwaves—keeping people safe, power affordable, and the power on for businesses. of batteries on California's grid prevented blackouts on Sept. 6, 2022.
Some energy storage technologies, like super-capacitors, are best at responding quickly and come in small modular form factors making them ideal for fast, "power" services like frequency response. Other technologies like pumped hydro are only feasible on a large scale, so are best suited for high "energy" services like energy time shifting.
Source: EPRI. Understanding the components of energy storage systems is a critical first step to understanding energy storage economics. The economics of energy storage is reliant on the services and markets that exist on the electrical grid which energy storage can participate in.
Energy storage strengthens our energy independence and national security by maximizing the use of affordable electricity produced in the United States, reducing the need for costly imported energy.
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