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90 kWh
Commercial energy storage systemsonnen

sonnen ECOLX100

90 kWh · 30 kW · Lithium Iron Phosphate

UL 9540CEC listed · Aug 2, 2021
  • Usable energy90 kWh
  • Continuous power30 kW
  • Warranty10 years
  • ChemistryLithium Iron Phosphate

Overview

CEC Energy Storage System List

ECOLX100: 90 kWh usable energy; 30 kW continuous; lithium iron phosphate; 10 years warranty.

Capacity & power

CEC Energy Storage System List

Stacking & expansion

CEC Energy Storage System List · sonnen datasheet

Installation & environment

CEC Energy Storage System List · sonnen datasheet

Warranty

CEC Energy Storage System List · sonnen datasheet

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

Full specifications

CEC Energy Storage System List · sonnen datasheet

Documents

manufacturer documents

Questions & answers

How much energy does the sonnen ECOLX100 store?

90 kWh usable, per the manufacturer datasheet.

Can you add more ECOLX100 units?

Yes — up to 6 units per system.

What warranty does the ECOLX100 have?

10 years (datasheet).

Is the ECOLX100 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.
  2. sonnen — datasheet ‍Download spec sheet.
  3. sonnen — document library on the manufacturer’s website (links above).