Query
Sanborn BESS 4
Type
Entity Briefing
Entity
Sanborn BESS 4
State
TN
Technology
battery
Generated
2026-10-17T09:28:35.522Z

Briefing on Sanborn BESS 4

Entity Briefing
Generated Oct 17, 2026·Dataset freshness not reported
47 MW
Capacity
Operating
Current status
2023
Operating since
1
Generators
-2.4%
Capacity factor
-10 GWh
Annual generation
Briefing/plantOperating

Sanborn BESS 4 is a 47 MW Batteries asset in CAISO (California), currently Operating.

Sanborn BESS 4 is reported in California since 2023 under Terra-Gen Operating Co-BESS. Available operating and financial measures include -2.4% capacity factor and -10 GWh annual generation; $1361/kW reported CapEx.

Location
Kern, California
Technology
Batteries
Owner / parent
Terra-Gen Operating Co-BESS
Operator
Terra-Gen Operating Co-BESS
Grid
CAISO (California)
Plant ID
65673

What stands out

1

Sanborn BESS 4 is a 47 MW Batteries asset in California with status Operating.

2

Latest annual operating measures report -2.4% capacity factor and -10 GWh annual generation.

3

Available financial measures include $1361/kW CapEx.

4

Latest linked story: “The US’s largest solar + battery storage project just came online” (Electrek, 2024-01-25).

Market and operating context

ISO / market
CAISO (California)
Balancing authority
California Independent System Operator
NERC region
WECC
State rank
#102 of 202
National rank
#474 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.