13.1 kWh

Home battery systemQcells

Qcells Q.HOME CORE Ax.xBx.x US.1

13.1 kWh · 7.84 kW · Lithium Ion

UL 9540UL 1741 SBCEC listed · May 1, 2026Installed in 4 SoCal permits

Nameplate energy13.1 kWh
Continuous power7.84 kW
ChemistryLithium Ion

Overview

CEC Energy Storage System List

Q.HOME CORE Ax.xBx.x US.1: 13.1 kWh nameplate energy; 7.84 kW continuous; lithium ion; named in 4 Southern California permits.

Capacity & power

CEC Energy Storage System List

Nameplate energy (CEC)13.1 kWh
Rated power (CEC)7.6 kW
Max continuous discharge (CEC)7.84 kW
Full-power discharge timeabout 1.7 h at full power
ChemistryLithium Ion
Grid connection240 V

Charging from solar in Southern California

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

City	December	June
Los Angeles	4.1 kW	2.4 kW
Palmdale	3.8 kW	2.2 kW
Chula Vista	3.5 kW	2.5 kW
Huntington Beach	3.8 kW	2.7 kW
Riverside	3.9 kW	2.3 kW
Santa Clarita	3.9 kW	2.3 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).

Direct PV inputNo

Safety listings

CEC Energy Storage System List

UL 9540 (energy storage system)Certified by UL
Certificate date & editionFeb 23, 2026 · Ed. 3 : 2023

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

UL 1741 SB (IEEE 1547-2018)Yes
UL 1741 SA (Rule 21)Yes
CSIP (IEEE 2030.5)Yes (with conditions)
Anti-islanding method groupsGroup 1 Anti-Island8
JA12 declaration (Title 24)No
Last CEC updateJul 1, 2026

Installs in Southern California

building permits

Permits name it

Sep 2026 – Oct 2026

Jurisdictions so far

Chula Vista (3), Palmdale (1)

Units per install

median of 4 permits

Installed together with

Qcells Q.PEAK DUO

Qcells Q.MI

Only installer and ZIP level is shown — no homeowner names, street addresses or permit numbers. Counts grow as more permit portals are loaded.

Who installs Q.HOME CORE Ax.xBx.x US.1

building permits · CSLB License Master

Lgcy Electric

Lehi · CSLB #1099095

3 installsSep 2026 – Oct 2026Chula Vista

Qcells For New Homes

Irvine · CSLB #1090641

1 installSep 2026Palmdale

Compare with similar batteries

CEC Energy Storage System List

Battery	Energy	Continuous power	Chemistry	Warranty	SoCal permits
Tesla Powerwall 3	13.5 kWh	5–11.5 kW	Lithium Ion, Lithium Iron Phosphate	10 years	2,115
Tesla AC Powerwall	13.5 kWh	5 kW	Lithium Ion	—	394
Tesla Powerwall +	13.5 kWh	5 kW	Lithium Ion	10 years	264
Enphase Energy ENCHARGE-10	10.1 kWh	3.84 kW	Lithium Iron Phosphate	10 years	197
Enphase Energy IQ Battery 10C	10 kWh	7.08 kW	Lithium Iron Phosphate	—	118
Enphase Energy ENCHARGE-10T	10.1 kWh	3.84 kW	Lithium Iron Phosphate	15 years	105

Same segment, similar capacity; each row from the same sources.

Questions & answers

How much energy does the Qcells Q.HOME CORE Ax.xBx.x US.1 store?

13.1 kWh nameplate, per the California Energy Commission list.

Is the Q.HOME CORE Ax.xBx.x US.1 UL 9540 certified?

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

Who installs the Q.HOME CORE Ax.xBx.x US.1 in Southern California?

Building permits name it 4 times. The most active licensed installers are Lgcy Electric, Qcells For New Homes.

Sources

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.
Building permits — Southern California permit portals. Equipment matched from permit descriptions.
Contractors State License Board — License Master (contractor names and license status), as of Oct 5, 2026.
Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).