Skip to main content
San Jose Civic Gallery City Hall agenda intelligence

Matter 26-348

Willow Rock Long Duration Energy Storage Agreement.

Utilities City Council Agenda Ready Introduced 24 Mar 2026
2 Documents on file 982 KB · 2 extracted · 2 AI summaries
File
26-348
Type
Environmental & Utility Services
Status
Agenda Ready
Requester
Unknown
Introduced
24 Mar 2026
Last synced
03 Jun 2026 · 08:18

The papers

01 162 KB

Memorandum

162 KB Extracted AI Summary
file ed6c7d64-85f0-4c06-ac3e-896e270e591f.pdf sha 395d0d78a807 source unavailable

Official source link unavailable. The file was imported, but the current source metadata does not include a public document URL.

Generated summary AI-assisted

The source text indicates this attachment appears to be a draft document.

The memorandum discusses the Willow Rock Long Duration Energy Storage Agreement, recommending that the San José City Council authorize the Director of the Energy Department to negotiate and execute agreements for the procurement of a share of the GEM A-CAES LLC project. The agreements aim to support San José Clean Energy's resource adequacy requirements and compliance with California Public Utilities Commission mandates. The project is expected to cost up to $3,960,000 annually and $79,200,000 over 20 years, contributing to energy storage diversity and reducing energy costs during peak demand.

Key points
  • The memorandum is addressed to the Mayor and City Council regarding the Willow Rock Long Duration Energy Storage Agreement.
  • The recommendation includes authorizing the Director of the Energy Department to negotiate and execute two agreements related to the GEM A-CAES LLC project.
  • The project aims to meet resource adequacy requirements from 2030 to 2050 and is part of a joint powers authority initiative.
  • The maximum annual cost to San José Clean Energy is up to $3,960,000, with a total contract cost not exceeding $79,200,000.
  • The project is expected to create jobs and utilize advanced compressed air energy storage technology.
Limitations
  • The text appears to be truncated, missing some details regarding the agreements and project terms.
  • There are unresolved placeholders and incomplete sections that affect the summary.

Generated for convenience from extracted text using AI. Review the official source document before relying on this summary.

Extracted text preview · 24,214 chars
COUNCIL AGENDA: FILE: ITEM: 4/7/26 26-348 6.1 ~ SANJOSE _ _ _ _ _ M_e_m_o_ri_a_n_du_m_ CTTYOF CAPITI\L OF SILICON VALLEY TO: HONORABLE MAYOR AND CITY COUNCIL SUBJECT: Willow Rock Long Duration Energy Storage Agreement Approved FROM: Lori Mitchell DATE: March 16, 2026 Date: 3/17/26 COUNCIL DISTRICT: Citywide RECOMMENDATION Adopt a resolution authorizing the Director of the Energy Department or their designee to negotiate and execute the following two related agreements for the procurement of a share of the GEM A-CAES LLC (Willow Rock) long-duration storage project, with any non-material modifications developed, as appropriate, in consultation with the City Attorney, and subject to the annual appropriation of funds, in an amount not to exceed $3,960,000 annually and $79,200,000 in aggregate in Calendar Years 2030 through 2050: (a) (b) Project Participation Share Agreement between California Community Power, the City of San José, CleanPowerSF, Peninsula Clean Energy, Redwood Coast Energy Authority, Silicon Valley Clean Energy, and Valley Clean Energy; and Buyer Liability Pass Through Agreement between California Community Power, GEM A-CAES LLC (or its affiliate), and the City of...
02 821 KB

Presentation - est. 5 minutes

821 KB Extracted AI Summary
file d5da2525-2e18-43a4-a24d-b7b721f6c535.pdf sha 41b683efa95b source unavailable

Official source link unavailable. The file was imported, but the current source metadata does not include a public document URL.

Generated summary AI-assisted

The document discusses actions related to agreements with Hydrostor, focusing on a project involving advanced compressed air storage. It outlines the background of the developer, project details, and recommendations for procurement agreements. The project aims to enhance renewable energy storage and meet regulatory requirements.

Key points
  • Presenters include Lori Mitchell and Phil Cornish.
  • SJCE has contracted for over 1 GW of renewable energy and storage resources since 2019.
  • Willow Rock, owned by Hydrostor Inc., is developing utility-scale energy storage facilities.
  • The Hydrostor agreement includes a 20-year term with an expected in-service date of June 1, 2030.
  • The total cost of the project is $79,200,000 with an annual cost of $3,960,000.
  • The project will contribute to SJCE's regulatory compliance and storage needs.
  • CC Power was formed in January 2021 to procure energy projects for 2.7 million customers.
  • The project will adhere to labor agreements and community engagement plans.
Limitations
  • The text includes placeholders and unresolved sections that affect the completeness of the summary.
  • Specific CPUC decisions and rulemaking references are mentioned but not detailed.

Generated for convenience from extracted text using AI. Review the official source document before relying on this summary.

Extracted text preview · 3,705 chars
Actions Related to the Agreements with Hydrostor April 7, 2026 Presenters: • Lori Mitchell, Director of Energy Department • Phil Cornish, Principal Power Resources Specialist NEW RENEWABLE AND RELIABILITY PROJECTS Since 2019, SJCE has contracted for over 1 gigawatt (GW) of new renewable energy and storage resources including: • • • • • • Community solar Firm delivery solar Solar paired with storage Geothermal Wind Stand-alone energy storage 1 ABOUT THE DEVELOPER & TECHNOLOGY • Founded in 2010, Willow Rock is owned by Hydrostor Inc., a developer and technology provider for utility-scale energy storage facilities. • Successfully developed smallscale A-CAES project in Ontario, Canada. • 200-megawatt A-CAES facility under development in Australia. • 7,000 Megawatts of projects in development pipeline. 2 HYDROSTOR AGREEMENT SUMMARY • Agreement Summary • • • • • • • • • • Seller: GEM A-CAES LLC (aka Willow Rock) Developer: Hydrostor, Inc. Technology: Advanced Compressed Air Storage Products: Resource Adequacy, Energy Settlement Location: Rosamond, Kern County, CA Expected in-Service Date: June 1, 2030 Price: Fixed, no escalation Term: 20 years Annual Cost: $3,960,000 Total Cost:...