Controversial Escondido Battery Storage Project Withdrawn

Neighbors celebrate victory after years of fighting proposed lithium-ion facility near homes and hospital.

Apr. 5, 2026 at 4:58am

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A lithium-ion battery storage project that faced strong opposition from the Escondido community due to fire hazard concerns has been withdrawn by the developer, AES. Neighbors in the Eden Valley area, including Phyllis Laderman, are celebrating the decision, relieved that the threat to their homes and a nearby hospital has been eliminated.

Why it matters

Battery storage projects are becoming more common as the grid transitions to renewable energy, but siting these facilities near residential areas has raised safety concerns. This withdrawal highlights the challenges developers face in balancing the need for energy infrastructure with community opposition, especially around potentially hazardous technologies.

The details

The Seguro Project was first proposed by AES in 2023 and aimed to provide stored renewable energy to San Diego's power grid. However, many neighbors opposed the project after learning it would use lithium-ion batteries stored in metal containers near homes and a hospital. Residents feared the batteries posed a serious fire risk, with one neighbor noting her horse's barn would have been just 50 feet from the facility. The Palomar Health hospital also rejected a request from the developer to build an easement through their property, citing concerns about the project's impact on their community.

  • The Seguro Project was first introduced in 2023.
  • AES announced the withdrawal of the project in April 2026.

The players

Phyllis Laderman

A neighbor in the Eden Valley Community who celebrated the withdrawal of the Seguro project, relieved that the threat to her home and property has been eliminated.

AES

The energy company that proposed the Seguro lithium-ion battery storage project, but has now withdrawn it amid challenging market conditions.

Palomar Health

The hospital that rejected a request from the Seguro project developer to build an easement through their property, citing concerns about the project's impact on their community.

JP Theberge

A member of the Elfin Forest Harmony Grove Town Council who said Palomar Health's rejection of the easement request was a key factor in the project's withdrawal.

Joe Rowley

An engineer who previously oversaw development projects and conducted a technical analysis of the Seguro project, concluding that the fire risks were too high for the adjacent land uses.

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What they’re saying

“It could not be better. It's been years that we had to live with that threat...we can breathe.”

— Unnamed neighbor

“These facilities have a tendency to catch fire and it's not like a wildfire, these are chemical fires.”

— Phyllis Laderman, Neighbor

“They were concerned that their quality of life was going to be ruined and put at risk.”

— JP Theberge, Elfin Forest Harmony Grove Town Council

“Battery storage projects contain large quantities of toxic flammable material and that's something you have to take into account when you're looking at the adjacent land uses.”

— Joe Rowley, Engineer

The takeaway

This withdrawal highlights the growing tensions between the need for renewable energy infrastructure and community concerns over safety, especially around emerging technologies like lithium-ion battery storage. As the grid continues to evolve, developers will need to work closely with local stakeholders to address these issues and find solutions that balance energy needs with public safety.