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36.9–55.3 kWh
Home battery systemSol-Ark

Sol-Ark L3 HV-xxKWH-xxK

41–61.4 kWh · 30–60 kW · Lithium Iron Phosphate · direct PV input · 2 configurations

UL 9540UL 1741 SBCEC listed · May 1, 2024
  • Usable energy36.9–55.3 kWh
  • Continuous power30–60 kW
  • Round trip (AC)91.2%
  • Warranty10 years
  • ChemistryLithium Iron Phosphate

Overview

CEC Energy Storage System List

L3 HV-xxKWH-xxK: 36.9–55.3 kWh usable energy; 30–60 kW continuous; lithium iron phosphate; accepts solar panels directly (DC-coupled); 10 years warranty.

Models & configurations

CEC Energy Storage System List · 2 listings
ModelEnergyPowerGrid voltageRound tripCEC listed
L3 HV-40KWH-30K41 kWh30 kW120 V91%May 1, 2024
L3 HV-60KWH-60K61.4 kWh60 kW277 V91%May 1, 2024

Capacity & power

CEC Energy Storage System List

How long can it power your home?

Cali-Graf calculation
Average home loadRuntime from full
0.5 kW≈ 110.6 h
1 kW≈ 55.3 h
2 kW≈ 27.6 h
3 kW≈ 18.4 h
60 kW (full continuous power)≈ 0.9 h
Runtime = 55.3 kWh usable (datasheet) ÷ load. A typical home averages 1–2 kW; air conditioning and EV charging use much more. Inverter and wiring losses shorten it.

Charging from solar in Southern California

NLR PVWatts v8 · Cali-Graf calculation · CEC Energy Storage System List
CityDecemberJune
Los Angeles17.2 kW10.2 kW
Palmdale15.9 kW9.3 kW
Chula Vista14.7 kW10.5 kW
Huntington Beach16.2 kW11.2 kW
Riverside16.5 kW9.8 kW
Santa Clarita16.3 kW9.6 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).

Inverter & compatible equipment

CEC Energy Storage System List

Installation & environment

CEC Energy Storage System List · Sol-Ark datasheet

Warranty

CEC Energy Storage System List · Sol-Ark datasheet
Battery warranties usually end at the term or the energy throughput, whichever comes first — see the warranty document.

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 · Sol-Ark datasheet

Documents

manufacturer documents

Questions & answers

How much energy does the Sol-Ark L3 HV-xxKWH-xxK store?

36.9–55.3 kWh usable, per the manufacturer datasheet.

How long can the L3 HV-xxKWH-xxK power a home?

About 55.3 hours at an average 1 kW load from a full charge (55.3 kWh usable); higher loads shorten it.

Can the L3 HV-xxKWH-xxK be installed outdoors?

Installation location per the datasheet: indoor/outdoor.

What warranty does the L3 HV-xxKWH-xxK have?

10 years, 196 MWh throughput (datasheet).

Is the L3 HV-xxKWH-xxK 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. Sol-Ark — datasheet L3 Series LimitLess Lithium 480V Datasheet.
  3. Sol-Ark — document library on the manufacturer’s website (links above).
  4. NLR (formerly NREL) — PVWatts v8, NSRDB PSM v3 typical-year weather for Los Angeles, Palmdale, Riverside, Santa Clarita, Chula Vista, Huntington Beach.
  5. Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).