# Daggett 1

CAISO asset profile · https://askthegrid.com/assets/facilities/daggett-1

The 113.5 MW four-hour phase of Clearway's Daggett complex

Daggett 1 is Clearway's 113.5 MW / 454 MWh four-hour battery phase in San Bernardino County. Its 15-year SDG&E agreement also carries a separate 91 MW, five-hour derated delivery basis; that contractual measure is not the plant's physical nameplate.

## Profile

- **Phase scope:** Clearway describes 394 MW of storage across the full Daggett complex. Daggett 1 is the later 113.5 MW phase tracked here.
- **Battery equipment:** Wärtsilä GridSolv equipment is documented for earlier Daggett phases; the cited records do not identify it as Daggett 1 equipment.

## Metrics

- **Physical storage:** 113.5 MW / 454 MWh — Four-hour EIA basis.
- **Contract basis:** 91 MW for 5 hours — CPUC/SDG&E derated delivery basis.
- **Term:** 15 years — SDG&E storage agreement through 2040.

## Facts

- **Owner:** Daggett Solar Power 1 LLC
- **Developer / operator:** Clearway Energy Group
- **EPC:** Blattner

## Related parties

- **Developer / operator:** Clearway Energy Group — Official operating and financing releases ([source](https://clearwayenergygroup.com/press-releases/clearway-brings-online-luna-valley-and-daggett-energy-centers-in-california))

## Sources

- [Daggett 1 contract decision](https://docs.cpuc.ca.gov/PublishedDocs/Published/G000/M532/K120/532120920.pdf) — CPUC · authoritative — Contract term, initial-delivery date, and derated delivery basis.

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Canonical page: https://askthegrid.com/assets/facilities/daggett-1

Source: Ask the Grid — https://askthegrid.com/