Cali-Graf in Southern California

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419.3 kWh

Commercial batteryTWS Technology (Anhui)

TWS Technology (Anhui) TWS-RL03

419.3 kWh · 209.7 kW · Lithium Iron Phosphate

UL 1973CEC listed · Oct 1, 2025

Nameplate energy419.3 kWh
Continuous power209.7 kW
ChemistryLithium Iron Phosphate

Overview

CEC Battery List

TWS-RL03: 419.3 kWh nameplate energy; 209.7 kW continuous; lithium iron phosphate.

Capacity & power

CEC Battery List

Nameplate energy (CEC)419.3 kWh
Max continuous discharge (CEC)209.7 kW
Full-power discharge timeabout 2 h at full power
ChemistryLithium Iron Phosphate

Safety listings

CEC Battery List

UL 1973 (stationary battery)Certified by TUV Rheinland of North America
Certificate date & editionJul 25, 2025 · Ed. 3 : 2022

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.