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61.4 kWh
Commercial energy storage systemPower Center

Power Center FLEX xx

61.4 kWh · Lithium Iron Phosphate · direct PV input

UL 9540CEC listed · Jul 11, 2024
  • Nameplate energy61.4 kWh
  • Round trip (AC)91.2%
  • ChemistryLithium Iron Phosphate

Overview

CEC Energy Storage System List

FLEX xx: 61.4 kWh nameplate energy; lithium iron phosphate; accepts solar panels directly (DC-coupled).

Capacity & power

CEC Energy Storage System List

Inverter & compatible equipment

CEC Energy Storage System List

Safety listings

CEC Energy Storage System List
UL 9540 certifies the whole storage system; UL 9540A is the fire-propagation test that fire codes ask for indoors and near walls.

California grid & code compliance

CEC Energy Storage System List

Questions & answers

How much energy does the Power Center FLEX xx store?

61.4 kWh nameplate, per the California Energy Commission list.

Is the FLEX xx UL 9540 certified?

Yes — the CEC list shows UL 9540 certification (certified by sgs).

Sources

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