Virginia firm drops plans for battery storage site in Coyote Valley
AES Corporation said it canceled its proposed 350 MW Jewelflower lithium-ion battery energy storage system on a 128-acre site in Coyote Valley near Morgan Hill. AES cited project economics, infrastructure needs, market conditions, community input, and priorities. The plan faced opposition from local groups and officials, including the Santa Clara Valley Open Space Authority, and AES said no permit was filed.
How this was made

The 30-second read
Why it matters
The cancellation follows community and board opposition, including concerns about land use in conserved farmland and proximity to a school, and it follows a prior AES battery project cancellation in San Diego County.
Market read
Traders may treat this as incremental evidence of siting and permitting friction for grid-scale storage in California, with likely modest impact on AES absent disclosed financial consequences.
What to watch
The article does not quantify financial exposure, contract status, or whether AES has alternative offtake arrangements for the capacity, which could materially change the pipeline impact.
Background
AES proposed the Jewelflower Battery Energy Storage System on 128 acres in Coyote Valley near Morgan Hill, facing opposition from local groups and officials.
Ticker impact
AES canceled its proposed 350 MW Jewelflower battery storage project in Coyote Valley after reviewing economics, infrastructure needs, and community factors.
Likely limited single-name impact; investors may view it as manageable permitting risk rather than demand deterioration.
The article is specific to one proposed site and notes AES still has an active storage development portfolio in California, with no disclosed financial hit or guidance change.
Market effects
Highlights permitting and community opposition risk for utility-scale lithium-ion storage projects, potentially affecting development timelines for peers.
Coyote Valley conservation area remains a constraint for industrial battery siting near sensitive land uses and schools.
Limited, as the event is localized and does not indicate a broader regulatory or technology shift.
Counterpoint
Cancellation could be value-preserving if the project’s economics or permitting path were unfavorable, allowing AES to redeploy capital to faster-to-build sites.
Key entities
- companyAES Corporation
Announced cancellation of the Jewelflower 350 MW battery storage proposal in Coyote Valley.
- organizationSanta Clara Valley Open Space Authority
Voted unanimously in late May to oppose the proposed AES Jewelflower plant.
- institutionCharter School of Morgan Hill
Raised concerns about the project’s proximity to the campus.
- regulatorCalifornia Energy Commission (CEC)
Received letters from state elected officials expressing concerns about the project.



