# Willdan selected for $31M cogeneration project at Encina Wastewater Authority

Willdan Group has been awarded a $31 million design-build contract by Encina Wastewater Authority to deliver a renewable cogeneration project in Carlsbad, California. The project will use biogas from wastewater treatment to produce on-site electricity and includes a battery energy storage system.

- Type: Contract
- Announced: 2026-07-15
- Where: Carlsbad, California, United States
- Value: $31.0M
- Status: announced
- Products: renewable cogeneration system, biogas conditioning system, battery energy storage system
- Sectors: [Power Generation Equipment](https://endata.com/sectors/power-generation-equipment.md), [Water Treatment Equipment](https://endata.com/sectors/water-treatment-equipment.md)

## Companies

- [Willdan Group](https://endata.com/companies/28942.md) (supplier)
- [Encina Wastewater Authority](https://endata.com/companies/93041.md) (customer)

## Sources

- [index.businessinsurance.com](https://index.businessinsurance.com/observerreporter/article/bizwire-2026-7-15-willdan-selected-by-encina-wastewater-authority-for-31-million-cogeneration-project), 2026-07-15: "This project allows us to provide continuous service to the North San Diego County communities we serve, ensuring uninterrupted operations even during periods of constrained utility power or grid disruptions."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.