City Council Agenda
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Memo to: |
Manteca City Council |
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From: |
Michael Selling, Assistant Director of Engineering/City Engineer |
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Prepared by: |
Somporn Boonsalat, Deputy Director of Engineering |
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Date: |
June 16, 2026 |
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Subject: |
Wastewater Quality Control Facility Floating Solar and Battery Project |
Recommendation:
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Adopt a resolution approving an Agreement for Services with Willdan Energy Solutions for the conceptual design of a solar photovoltaic and energy storage project at the City of Manteca Wastewater Quality Control Facility; and authorizing the City Manager or designee to take all appropriate actions necessary to carry out the purpose and intent of the resolution.
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Background:
In early 2026, the City of Manteca (City) was approached by Energy Systems Group (ESG) and Willdan Energy Solutions (Willdan), separately, with proposals for a solar photovoltaic system at the City’s Wastewater Quality Control Facility that would be funded by future cost savings from the power generated.
ESG’s proposal included a 1.8 mega-watt ground mounted solar photovoltaic system with an estimated $1.89 million in rebates.
Willdan’s proposal included a 1.7 mega-watt floating solar photovoltaic and battery system with an estimated $3.2 million in rebates.
Staff has reviewed both proposals and recommends moving forward with a technical feasibility review of Willdan’s proposal, at no cost to the City. Once completed, staff will report back to Council with a recommendation to either advance, delay, or not pursue the project.
Fiscal Impact:
There is no cost associated with this action.
Documents Attached:
1. Attachment 1 - Resolution
2. Attachment 2 - Location Map
3. Attachment 3 - Agreement for Service