Cali-Graf in Southern California

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279.6 kWh

Commercial batteryContemporary Amperex Technology

Contemporary Amperex Technology O652280-E

279.6 kWh · 139.7 kW · Lithium Ion

UL 1973CEC listed · Jun 3, 2024

Nameplate energy279.6 kWh
Continuous power139.7 kW
ChemistryLithium Ion

Overview

CEC Battery List

O652280-E: 279.6 kWh nameplate energy; 139.7 kW continuous; lithium ion.

Capacity & power

CEC Battery List

Nameplate energy (CEC)279.6 kWh
Max continuous discharge (CEC)139.7 kW
Full-power discharge timeabout 2 h at full power
ChemistryLithium Ion

Safety listings

CEC Battery List

UL 1973 (stationary battery)Certified by TUV SUD America
Certificate date & editionAug 15, 2022 · Ed. 2 : 2018

Sources

California Energy Commission — Energy Storage System List, data as of Oct 7, 2026. Manufacturer-reported values confirmed by CEC against certificates.
California Energy Commission — Battery List, data as of Oct 7, 2026.