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Edison Today
By the People, for the People
FERC Approves SCE's Battery Storage Project Agreement
The 500-MW project with Longroad Development will help expand California's energy storage capacity.
Apr. 14, 2026 at 12:10am
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A new large-scale battery storage project approved by federal regulators will help California expand its energy storage capacity and integrate more renewable power.Edison TodayThe Federal Energy Regulatory Commission (FERC) has approved an agreement between Southern California Edison (SCE) and Longroad Development Co. regarding the interconnection of a 500-megawatt battery energy storage project. The project aims to expand California's energy storage capacity as the state continues its transition to renewable energy sources.
Why it matters
Energy storage is a critical component of California's clean energy future, helping to balance the grid and integrate more renewable power. This project represents a significant expansion of the state's battery storage capacity, which will be important as California works to meet its ambitious climate and renewable energy goals.
The details
Under the approved agreement, SCE will interconnect Longroad's 500-MW battery energy storage project to its transmission system. The project is part of California's efforts to build out its energy storage infrastructure to support the growth of renewable energy sources like solar and wind. One FERC commissioner acknowledged that Longroad remains 'between a rock and a hard place' in developing the project, likely referring to the challenges of financing and constructing large-scale energy storage facilities.
- FERC approved the agreement on April 14, 2026.
The players
Southern California Edison (SCE)
A major electric utility company serving customers across Southern California.
Longroad Development Co.
A renewable energy development company that is building the 500-MW battery energy storage project.
Federal Energy Regulatory Commission (FERC)
The U.S. federal agency that regulates the interstate transmission of electricity, natural gas, and oil.
What’s next
The 500-MW battery energy storage project will now move forward with construction and interconnection to SCE's transmission system.
The takeaway
This FERC-approved agreement represents an important step forward in California's efforts to build out its energy storage infrastructure to support the state's transition to renewable energy sources and meet its climate goals.
