Cali-Graf in Southern California

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73.7 kWh

Commercial batteryTROES

TROES TR-S138-8P9

73.7 kWh · 73.7 kW · Lithium Iron Phosphate

UL 1973CEC listed · Apr 1, 2022

Nameplate energy73.7 kWh
Continuous power73.7 kW
ChemistryLithium Iron Phosphate

Overview

CEC Battery List

TR-S138-8P9: 73.7 kWh nameplate energy; 73.7 kW continuous; lithium iron phosphate.

Capacity & power

CEC Battery List

Nameplate energy (CEC)73.7 kWh
Max continuous discharge (CEC)73.7 kW
Full-power discharge timeabout 1 h at full power
ChemistryLithium Iron Phosphate

Safety listings

CEC Battery List

UL 1973 (stationary battery)Certified by TUV Rheinland
Certificate date & editionJan 26, 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.