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92.2 kWh
Home battery systemDeye

Deye SE-G18-12K-US

92.2 kWh · 9 kW · Lithium Iron Phosphate · direct PV input

UL 9540UL 1741 SBCEC listed · Oct 1, 2024
  • Nameplate energy92.2 kWh
  • Continuous power9 kW
  • ChemistryLithium Iron Phosphate

Overview

CEC Energy Storage System List

SE-G18-12K-US: 92.2 kWh nameplate energy; 9 kW continuous; lithium iron phosphate; accepts solar panels directly (DC-coupled).

Capacity & power

CEC Energy Storage System List

Charging from solar in Southern California

NLR PVWatts v8 · Cali-Graf calculation · CEC Energy Storage System List
CityDecemberJune
Los Angeles28.7 kW17 kW
Palmdale26.5 kW15.5 kW
Chula Vista24.5 kW17.6 kW
Huntington Beach27 kW18.7 kW
Riverside27.5 kW16.3 kW
Santa Clarita27.2 kW16.1 kW
Solar array size that refills the battery from empty in one average day, before the home uses any of it (NLR PVWatts v8, 20° south roof).

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 Deye SE-G18-12K-US store?

92.2 kWh nameplate, per the California Energy Commission list.

Is the SE-G18-12K-US 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.
  2. NLR (formerly NREL) — PVWatts v8, NSRDB PSM v3 typical-year weather for Los Angeles, Palmdale, Riverside, Santa Clarita, Chula Vista, Huntington Beach.
  3. Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).