Deye SE-G18-xxK-US

Name: Deye SE-G18-xxK-US
Brand: Deye

92.2 kWh · 5–15 kW · Lithium Iron Phosphate · direct PV input · 3 configurations

UL 9540UL 1741 SBCEC listed · Oct 1, 2024

Overview

CEC Energy Storage System List

SE-G18-xxK-US: 92.2 kWh nameplate energy; 5–15 kW continuous; lithium iron phosphate; accepts solar panels directly (DC-coupled).

CEC Energy Storage System List · 3 listings

Model	Energy	Power	Grid voltage	Round trip	CEC listed
SE-G18-5K-US	92.2 kWh	5 kW	240 V	—	Oct 1, 2024
SE-G18-8K-US	92.2 kWh	8 kW	240 V	—	Oct 1, 2024
SE-G18-15K-US	92.2 kWh	15 kW	240 V	—	Oct 1, 2024

CEC Energy Storage System List

NLR PVWatts v8 · Cali-Graf calculation · CEC Energy Storage System List

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).

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.

CEC Energy Storage System List

How much energy does the Deye SE-G18-xxK-US store?

92.2 kWh nameplate, per the California Energy Commission list.

Is the SE-G18-xxK-US UL 9540 certified?

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

California Energy Commission — Energy Storage System List, data as of Oct 7, 2026. Manufacturer-reported values confirmed by CEC against certificates.
NLR (formerly NREL) — PVWatts v8, NSRDB PSM v3 typical-year weather for Los Angeles, Palmdale, Riverside, Santa Clarita, Chula Vista, Huntington Beach.
Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).