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4,179.9 kWh
Commercial energy storage systemCPS (Chint Power Systems)

CPS (Chint Power Systems) CPS ES-2MW/4MWh 22.9kV

4,179.9 kWh · 2,089.9 kW · Lithium Iron Phosphate

UL 9540UL 1741 SBCEC listed · Apr 1, 2025
  • Nameplate energy4,179.9 kWh
  • Continuous power2,089.9 kW
  • ChemistryLithium Iron Phosphate

Overview

CEC Energy Storage System List

CPS ES-2MW/4MWh 22.9kV: 4,179.9 kWh nameplate energy; 2,089.9 kW continuous; lithium iron phosphate.

Capacity & power

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 CPS (Chint Power Systems) CPS ES-2MW/4MWh 22.9kV store?

4,179.9 kWh nameplate, per the California Energy Commission list.

Is the CPS ES-2MW/4MWh 22.9kV UL 9540 certified?

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

Sources

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