What is a substation energy storage system?

The substation energy storage systems will be built to address the emergency reliability risks identified in the Governor’s Emergency Proclamation aimed at utilizing clean energy resources to address electric power shortages due to extended drought, wildfire, and heatwaves.

Why is energy storage important?

Energy storage can also support local distribution circuits impacted by the high penetration of renewable resources and improve power quality. Batteries can also be used to respond to the California Independent System Operator’s signals during high-demand events, heat waves or when the energy grid is strained.

How does the Connolly battery energy storage system work?

The 2.8MW/5.6MWh Connolly battery energy storage system is connected to a circuit that supports 15 small solar farms and rooftop solar installations. When customers aren’t using much electricity, excess power can overload the circuit. SCE will use the battery energy storage system to manage this reverse flow.

How much storage capacity does Southern California Edison have?

Southern California Edison has 3 gigawatts of storage capacity as of June 2024 and is actively improving grid reliability with an additional 8.1 gigawatts of storage capacity that has been installed or procured.

Should I install energy storage?

If your main electrical panel is configured to only have critical load (e.g., a few lights, refrigerator, A/C) on, your energy storage system will last longer. If you install energy storage, you can also take advantage of load-shifting to maximize your energy consumption during off-peak pricing and benefit from Time-of-Use (TOU) pricing control.