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233 kWh
Commercial energy storage systemCESC New Energy Technology

CESC New Energy Technology Mercury

233 kWh · 125 kW · Lithium Ion

UL 9540CEC listed · Jul 11, 2025
  • Nameplate energy233 kWh
  • Continuous power125 kW
  • ChemistryLithium Ion

Overview

CEC Energy Storage System List

Mercury: 233 kWh nameplate energy; 125 kW continuous; lithium ion.

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 CESC New Energy Technology Mercury store?

233 kWh nameplate, per the California Energy Commission list.

Is the Mercury UL 9540 certified?

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

Sources

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