Query
Sienna 2 Solar and Storage Project
Type
Entity Briefing
Entity
Sienna 2 Solar and Storage Project
ISO/RTO
isone
Generated
2026-10-17T14:54:44.544Z

Briefing on Sienna 2 Solar and Storage Project

Entity Briefing
Generated Oct 17, 2026·Dataset freshness not reported
110 MW
Capacity
Planned
Current status
2
Generators
Briefing/plantPlanned

Sienna 2 Solar and Storage Project is a 110 MW Batteries asset in CAISO (California), currently Planned.

Sienna 2 Solar and Storage Project is reported in California under 44ST 8ME LLC. Available operating and financial measures include $1544/kW reported CapEx.

Location
San Bernardino, California
Technology
Batteries, Solar Photovoltaic
Owner / parent
44ST 8ME LLC
Operator
44ST 8ME LLC
Grid
CAISO (California)
Plant ID
68486

What stands out

1

Sienna 2 Solar and Storage Project is a 110 MW Batteries asset in California with status Planned.

2

Available financial measures include $1544/kW CapEx.

Market and operating context

ISO / market
CAISO (California)
Balancing authority
California Independent System Operator
NERC region
WECC
State rank
#53 of 202
National rank
#332 of 994

Why it matters

For this asset in CAISO (California), operating status, generation, ownership, and linked events are the primary facts for performance and asset-level diligence. The exact chart and source-linked records below let the reader test those facts before moving to a deeper report.

Sienna 2 Solar and Storage Project — verified asset snapshot

FieldValue
LocationSan Bernardino, California
TechnologyBatteries, Solar Photovoltaic
Owner / parent44ST 8ME LLC
Operator44ST 8ME LLC
GridCAISO (California)
Plant ID68486
ISO / marketCAISO (California)
Balancing authorityCalifornia Independent System Operator