Grand BESS (2278)

Grand BESS is a 205.0 MW battery interconnection project in Santa Clara, California with a current status of withdrawn. It is proposed to connect at PIERCY 115 kV.

205.0 MWCapacity
WithdrawnStatus
CAISOMarket
BatteryTechnology

Project facts

Canonical nameGrand BESS
Queue ID2278
Statuswithdrawn
Source statuswithdrawn
MarketCAISO
TechnologyBattery
Capacity205.0 MW
StateCalifornia
CountySanta Clara
Point of interconnectionPIERCY 115 kV
Requested (queue) date2023-04-17
Proposed in-service date2028-12-31
Operational date
Withdrawn date2025-12-04
Developer
Utility / transmission ownerPGAE

What changed

No material field-level changes have been recorded for this project since the baseline snapshot. interXdata detects changes as new source snapshots are ingested and diffed against prior state.

Explore related data

Source last checked2026-07-31
Data last materially changed2026-07-31
Page data generated2026-08-27

Provenance: Lawrence Berkeley National Laboratory — Queued Up interconnection dataset. Values are normalized from public source records into the interXdata canonical warehouse; see each source for original filings.

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